shibuyaããã2003åš´05æ03æĨ(å) 20æ00å44į§ãĢã
fj.net.misc,fj.booksãĢæį¨ŋãã<3EB3A15C...@dd.iij4u.or.jp>ãŽč¨äēãã
> page[100110010](306) su [æŖ]: su - substitute user identity [čĒ¤]: super userãŽįĨ
ããã¯OSãĢããŖãĻčĢ¸čĒŦããããããããžããã§ãããŖãīŧ
大æãĢ UNIX USER čĒã§ããŋãĢãããĻãããããĒīŧ
ããŽã¨ãã¯īŧswitch user 㨠substitute user 㨠super user ãããīŧ
ã¨ãã芹ã§ãããīŧ
(SunOS 5.6, 5.8)
NAME
su - become super user or another user
(LASER5 Linux 6.2 㨠Red Hat Linux 7.1)
NAME
su - run a shell with substitute user and group IDs
(IRIX 6.5)
NAME
su - become superuser or another user
ããŧãīŧSunOS 4.1.4 ã¯ãã°ããåãžã§äŊŋãããã§ããīŧäģã¯ãĒãâĻâĻīŧ
----------- ããĨãŧãšã¯ãŋããĒãŽãããĢ īŧīŊīŧŧ ãĄãŧãĢã¯åäēēãŽãããĢ -----------
å¤Ēį° å°åŋ - OTA Takashi - http://web.sfc.keio.ac.jp/~t00156to/ ICQ#:39782589
> > page[100110010](306) su [æŖ]: su - substitute user identity [čĒ¤]: super userãŽįĨ
>
> ããã¯OSãĢããŖãĻčĢ¸čĒŦããããããããžããã§ãããŖãīŧ
> 大æãĢ UNIX USER čĒã§ããŋãĢãããĻãããããĒīŧ
> ããŽã¨ãã¯īŧswitch user 㨠substitute user 㨠super user ãããīŧ
> ã¨ãã芹ã§ãããīŧ
>
> (SunOS 5.6, 5.8)
> NAME
> su - become super user or another user
>
> (LASER5 Linux 6.2 㨠Red Hat Linux 7.1)
> NAME
> su - run a shell with substitute user and group IDs
>
> (IRIX 6.5)
> NAME
> su - become superuser or another user
>
> ããŧãīŧSunOS 4.1.4 ã¯ãã°ããåãžã§äŊŋãããã§ããīŧäģã¯ãĒãâĻâĻīŧ
http://www.freebsd.org/cgi/man.cgi ã§čĒŋãšãéãã§ã¯
FreeBSD 4.7-RELEASEã2.10 BSDãNetBSD 1.6.1ãOpenBSD 3.2
|NAME
| su - substitute user identity
HPUX 11.22
|NAME
| su - switch user
Minix 2.0
|NAME
| su - temporarily log in as superuser or another user
OSF1 V5.1/alphaãUNIX 7th Ed.
|NAME
| su - Substitutes user ID temporarily
SunOS 4.1.3
|NAME
| su - super-user, temporarily switch to a new user ID
Ultrix 4.2
|Name
| su - substitute a user ID
deutsch-Linux/GNU
|BEZEICHNUNG
| su - (superuser) ändert User und Gruppen ID
ã§ããã
AT&T UNIX ver.1 ãŽãããããããŗããŗãã ããã§ããŽã§ãããããå¤ãããŽã
ãããŖãĻãŋãã¨įį¸ãåãããããããžããã
========================================================================
éŖ¯åļ æĩŠå
/ ã§ãããããģããããž http://www.ht.sakura.ne.jp/~delmonta/
IIJIMA Hiromitsu, aka Delmonta mailto:delm...@ht.sakura.ne.jp
âââãäģæĨãŽã˛ã¨ãã¨ãââââââââââââââââââââââââ
大ããĒåã¯ã¤ããĻãããããå°ããĒåãã¤ããĻã¯ãããĒãã
ãããããããããããââå˛Ąį°æå¸å¤ĢīŧæąäēŦ大åĻããĒãŋã¯æåčĢãŧããããīŧ
ããããââãã ãžå
ŧåŖīŧæ įģãåæĸåĩãŗããŗãįŗãŽä¸ãŽææŽēč
ãããŗãããīŧ
ââââââââââââââââââââââââââââââââââââ
>>>>> IIJIMA Hiromitsu <delm...@ht.sakura.ne.jp> ãã㎠wrote:
>>>>> in <3EB84696...@ht.sakura.ne.jp> ãã
>
> > > page[100110010](306) su [æŖ]: su - substitute user identity [čĒ¤]: super userãŽįĨ
> >
> > ããã¯OSãĢããŖãĻčĢ¸čĒŦããããããããžããã§ãããŖãīŧ
> > 大æãĢ UNIX USER čĒã§ããŋãĢãããĻãããããĒīŧ
> > ããŽã¨ãã¯īŧswitch user 㨠substitute user 㨠super user ãããīŧ
> > ã¨ãã芹ã§ãããīŧ
>
> AT&T UNIX ver.1 ãŽãããããããŗããŗãã ããã§ããŽã§ãããããå¤ãããŽã
> ãããŖãĻãŋãã¨įį¸ãåãããããããžããã
http://minnie.tuhs.org/UnixTree/V7/usr/man/man1/su.1.html ã
čĻãã¨ã
: su - substitute user id temporarily
ã¨ãĒãŖãĻããžãã
ä¸æšã
http://minnie.tuhs.org/UnixTree/V5/usr/source/s2/su.c.html ã
http://minnie.tuhs.org/UnixTree/V6/usr/source/s2/su.c.html ãŽ
ãŗãĄãŗãé¨åãčĻãã¨ã
: /* su -- become super-user */
ã¨ãĒãŖãĻããžããV7äģĨåãŽman1ãĢã¯ãsuãĢéĸããč¨čŋ°ã¯ãããžããã
īŧhttp://minnie.tuhs.org/UnixTree/V7/usr/src/cmd/su.c.html ãĢã¯ã
ããŗãĄãŗãé¨åãčĻããããžããã
ã¨ããããã§ãåŊåãŽäŊč
ãĢã¯ãsuper userãĢãĒããããŽããŽã¨ãã
æčãããŖããŽã§ãããã
ããã§ã¯ã
--
mihi~star <mi...@childstar.club.ne.jp>
ãã¨å°ãæĸãã° ããŖã¨čĻã¤ãããžãããŖâĒ
In article <b98oal$f77$1...@news.sfc.keio.ac.jp>
t00156...@sfc.keio.ac.jp writes:
>> ããŧãīŧSunOS 4.1.4 ã¯ãã°ããåãžã§äŊŋãããã§ããīŧäģã¯ãĒãâĻâĻīŧ
/usr/etc/os_release
> SunOS Release 4.1.4-JLE1.1.4
> OS/AS Version 4.14 R0
man su
> su - æ°ãããĻãŧãļIDã¸ãŽä¸æįãĒåãæŋãīŧãšãŧããŧãĻãŧãļīŧ
unsetenv LANG
man su
> su - super-user, temporarily switch to a new user ID
--
yna...@st.rim.or.jp
ãããããŋã˛ãŧããã ã
čĒåŽ
ã§ã¯ã2038åš´ãžã§æãããã¤ããããããŖãæ JLE ãäŊŋãäēåŽ(įŦ)
In article <87u1c7i...@artemis.scn-net.ne.jp>,
mihi~star <mi...@childstar.club.ne.jp> writes:
>ä¸æšã
>http://minnie.tuhs.org/UnixTree/V5/usr/source/s2/su.c.html ã
>http://minnie.tuhs.org/UnixTree/V6/usr/source/s2/su.c.html ãŽ
>ãŗãĄãŗãé¨åãčĻãã¨ã
>: /* su -- become super-user */
>ã¨ãĒãŖãĻããžããV7äģĨåãŽman1ãĢã¯ãsuãĢéĸããč¨čŋ°ã¯ãããžããã
man8 ãĢãããžããããæå
㎠6th Edition ãŽãããĨãĸãĢ㯠8įĢ ãæŦ čŊ
ããĻããžãããįŽæŦĄã§ã¯ã
VIII. SYSTEM MAINTENANCE
īŧįįĨīŧ
su ãģãģãģãģãģãģãģãģ become privileged user
ã¨ãĒãŖãĻããžãã
--
įåąąīŧ īŧ°īŧĻīŧĩ
>>>>> KATAYAMA Yoshio <ka...@pfu.fujitsu.com> ãã㎠wrote:
>>>>> in <KATE.03M...@flash.tokyo.pfu.co.jp> ãã
>
> >http://minnie.tuhs.org/UnixTree/V6/usr/source/s2/su.c.html ãŽ
> >ãŗãĄãŗãé¨åãčĻãã¨ã
> >: /* su -- become super-user */
> >ã¨ãĒãŖãĻããžããV7äģĨåãŽman1ãĢã¯ãsuãĢéĸããč¨čŋ°ã¯ãããžããã
>
> man8 ãĢãããžããããæå
㎠6th Edition ãŽãããĨãĸãĢ㯠8įĢ ãæŦ čŊ
> ããĻããžãããįŽæŦĄã§ã¯ã
> VIII. SYSTEM MAINTENANCE
> īŧįįĨīŧ
> su ãģãģãģãģãģãģãģãģ become privileged user
> ã¨ãĒãŖãĻããžãã
ã˛ããŧããģãã¨ã ã^^; ãĄããã¨æ¤į´ĸã¨ãŗã¸ãŗãčĻãĻããã°ãããŖãã
ããŖãããã¨ãããman8ãĢãããžããã
http://minnie.tuhs.org/UnixTree/V3/usr/man/man8/su.8.html
http://minnie.tuhs.org/UnixTree/V4/usr/man/man8/su.8.html
http://minnie.tuhs.org/UnixTree/V6/usr/man/man8/su.8.html
ã§ãã
V3ãŽããŽãčĻãã¨ã 'SU (VIII)'1/20/73'SU (VIII)' ã ãŖãĻã
UnixãčįĢãŽæŗã§ããã
ããã§ã¯ã
īŧ2038åš´ãžã§äŊŋãã(?)IA-64ããˇãŗãæŦ˛ããã§ãã
ãčŊãĄãĻããæããĻãã ããã(ããĄããčŊãĄãĻãĒã)
> īŧ2038åš´ãžã§äŊŋãã(?)IA-64ããˇãŗãæŦ˛ããã§ãã
time_t ã 64bit ã§ãĄããã¨åã OS ãčŧãŖãĻãã°ã32bit ãĸãŧããã¯ããŖã§ã
2038 åš´äģĨéã大ä¸å¤Ģã ã¨æããžãããéãĢ 64bit ãĸãŧã㎠64bit OS ã ããã¨
č¨ãŖãĻã2038 åš´äģĨé大ä¸å¤Ģãã¨ããã¨åŋ
ãããããã¨ã¯éããĒãã¨æããžãã
īŧ LP64 㧠int ãĢããŖãšãããĻäģŖå
ĨããĻãããããä¸įˇã§ãããã
> ãčŊãĄãĻããæããĻãã ããã(ããĄããčŊãĄãĻãĒã)
Alpha ã UltraSPARC ã ã¨å˛ã¨čŊãĄãĻãžããã?(įŦ)
ãããããĒããĻã64bit ãĒ OS ä¸ã§ Unix V3 ㎠su.c ããŗãŗãã¤ãĢããĻã
2038 åš´äģĨéãžã§äŊŋãããããŖãĻ芹ããĒ? īŧ ããĒããããĒããã(įŦ)
--
æį° äŋŽå¸ NETside Technologies Inc.
-- Equal Opportunity for All Good Architectures, NetBSD. --
>> īŧ2038åš´ãžã§äŊŋãã(?)IA-64ããˇãŗãæŦ˛ããã§ãã
>> ãčŊãĄãĻããæããĻãã ããã(ããĄããčŊãĄãĻãĒã)
> Alpha ã UltraSPARC ã ã¨å˛ã¨čŊãĄãĻãžããã?(įŦ)
ã㨠35 åš´ãåŖãããĢåãįļããããã¨ã¯æããĒããã§ããããã:-p
--
įåąąīŧ īŧ°īŧĻīŧĩ
âSubject: Re: UNIX Network Management Guide (Moe Moe Unix!)
In article <87issnh...@artemis.scn-net.ne.jp>
mi...@childstar.club.ne.jp writes:
>> īŧ2038åš´ãžã§äŊŋãã(?)IA-64ããˇãŗãæŦ˛ããã§ãã
>> ãčŊãĄãĻããæããĻãã ããã(ããĄããčŊãĄãĻãĒã)
IA-64 ãŖãĻ mips ã ãŖã(æą)ããĒį§ãããŠããŧããĻã¯ãããĒã
æ°ãããžããããĄããŖã¨æ¤į´ĸãã㨠SGI ㎠750 ã¯čŖŊé ããĻãĒã
ãŋããã§ãĩãŧãã¯čļ
éĢéĄã IBM äŊã§ããããã
IntelliStation Z Pro ã¨ãæ¤į´ĸãã㨠120ä¸ã 40ä¸åäŊã§
ãããŋããã§ããä¸å¤ããã
īŧã¨ããŖãĻãåäēēã§ã¯č˛ˇããĒãå¤æŽĩ :-p
--
yna...@st.rim.or.jp
ãŖãĻãããããããŋã˛ãŧãããĒããåįĨã§ããã m(..)m
æã¯ææ°æŠį¨ŽãčŋŊããããčˇå ´ã§ããããæčŋã¯ãæå¤ãĒį°åĸã§
ææ°ãŽããããŽâĻ(ããģããģ)
Nagata wrote:
> IA-64 ãŖãĻ mips ã ãŖã(æą)ããĒį§ãããŠããŧããĻã¯
Intelã¨Hewlett Packard (Compaqã¨ãŽåäŊĩå) ãŽå
ąåéįēã§ã¯īŧ
--
mailto:shi...@dd.iij4u.or.jp
Nobuhiro Shibuya at Office
Tokyo Japan
> IA-64 ãŖãĻ mips ã ãŖã(æą)ããĒį§ãããŠããŧããĻã¯ãããĒã
> æ°ãããžããã
IA ãŖãĻãŽã¯ Intel architecture ãŽãã¨ã§ãčĻãããĢ IA-64 ã¨ã¯ Itanium ãŽ
ãã¨ã§ãã
äģãĢ㯠Alpha ãæčŋ㎠SPARC ã 64 ããããããģããĩã§ããã
> ããããžã§ãã
> äģãĢ㯠Alpha ãæčŋ㎠SPARC ã 64 ããããããģããĩã§ããã
æåžãŽé ãŽPA-RISC(HP)ãã
ããã¨ããIA-64ãŖãĻ PA-RISC ãŽãšãŧããŧãģããã§ãããŖãīŧ
> ããã¨ããIA-64ãŖãĻ PA-RISC ãŽãšãŧããŧãģããã§ãããŖãīŧ
åŊäģ¤įãĢ㯠IA-32īŧīŧx86īŧãŽåæŽãč˛ã
ãããããĒã
æ´æ°ãŦã¸ãšãŋã R0īŊR15 ㎠16 æŦãããŽã§ãããR0īŊR7 ãĢ㯠RAX, RBX, RCX,
RDX, RSI, RDI, RBP, RSPīŧé ä¸åīŧã¨ããåĨåãã¤ããĻããã¯ãã§ãã
ãŋãããĒæšåãĢ芹éĄãé˛ãã§ããžããâĻ
MOCHIDA Shuji wrote:
> æį°īŧ NETside ã§ãã
>
> > īŧ2038åš´ãžã§äŊŋãã(?)IA-64ããˇãŗãæŦ˛ããã§ãã
>
> time_t ã 64bit ã§ãĄããã¨åã OS ãčŧãŖãĻãã°ã32bit ãĸãŧããã¯ããŖã§ã
> 2038 åš´äģĨéã大ä¸å¤Ģã ã¨æããžãããéãĢ 64bit ãĸãŧã㎠64bit OS ã ããã¨
> č¨ãŖãĻã2038 åš´äģĨé大ä¸å¤Ģãã¨ããã¨åŋ
ãããããã¨ã¯éããĒãã¨æããžãã
ã¨ããįĒãŖčžŧãŋãæĸãĢå ĨãŖãĻãããããĢ
] 2038-01-19 03:14:07 UTC
ãŽååžãĢãããŽææ´å˛ã¯åããããŽįŦéãããŖãĻããã¯ãã§ãããã
# éį§åéĄãŽããæ°į§ãŽčĒ¤åˇŽããããžãã
--
mailto:shi...@dd.iij4u.or.jp
Nobuhiro Shibuya, Tokyo Japan
> äģãĢ㯠Alpha ãæčŋ㎠SPARC ã 64 ããããããģããĩã§ããã
æčŋ? UltraSPARC 㯠PentiumPro ã¨åææããããããĒããŖãã§ãã?
ãããĄããŖã¨å¤ãããĒ?
īŧ ããŖã¨ããããŖãĄããæåãŽãã¤ã¯ãã°ãŖãĻãĻ 64bit ããąã ãŖããããĒã
ããĄãã Alpha ã¯ããããããŖã¨åã
īŧ ãæčŋ㎠SH ã¯ãã¨ããĒããããã
ARM ããããããĒãã§ãã? 64bit åčããĒããŽã
> ã㨠35 åš´ãåŖãããĢåãįļããããã¨ã¯æããĒããã§ããããã:-p
ããã¯č¨ãã... éģč§Ŗãŗãŗããŗãĩãŧäē¤æããåŋ
čĻããããžãã..
ããĄãŗã¯ããã ããããŠãéģæēãĻãããããĒãã¨ãããã¨ããĻã
SCA ㎠HDD ã¯ããįĄããããEthernet ã¯ãžã ããããĒ..
äģãã 35 åš´åã¤ã㨠1968 åš´čŖŊããžã åããĻããã§ãããã..
īŧ 2.11BSD ã¨ãã§ã
suspend userã ã¨æãŖãĻãžãã ;)
--
ã_ã ____________________________
ããģãģ ã vo...@merope.pleiades.or.jp
( ° )īŊ æĨä¸é¨éŊä¸
âžâžâžâžâžâžâžâžâžâžâžâžâžâžâžâžâžâžâžâžâžâžâžâžâžâžâžâžâžâžâžâžâžâžâžâžâžâž
> > äģãĢ㯠Alpha ãæčŋ㎠SPARC ã 64 ããããããģããĩã§ããã
>
> æčŋ? UltraSPARC 㯠PentiumPro ã¨åææããããããĒããŖãã§ãã?
> ãããĄããŖã¨å¤ãããĒ?
> īŧ ããŖã¨ããããŖãĄããæåãŽãã¤ã¯ãã°ãŖãĻãĻ 64bit ããąã ãŖããããĒã
ããããããĢããŽããã§ãããã
īŧã§ãåŊæ㯠UltraSPARC ã 32 ããããĸãŧãã§ããäŊŋãŖãĻãĒããŖãã
īŧãĄãĸãĒã 1GB ããįŠãã§ãĒããã
īŧããžã¯ããŽããšãããã¯éĸããããŠãããžã¯ 64 ãããã§äŊŋãããããĢãĒãŖãĻ
īŧãããã ãããâĻ
=>] 2038-01-19 03:14:07 UTC
=>
=>ãŽååžãĢãããŽææ´å˛ã¯åããããŽįŦéãããŖãĻããã¯ãã§ãããã
=># éį§åéĄãŽããæ°į§ãŽčĒ¤åˇŽããããžãã
æčŋčĒŋãšãįĩæã§ã¯īŧUnixãŽå ´åīŧ1970åš´1æ1æĨãŽåå0æ(TAI)ã
čĩˇįš(epoch)ã¨ããUnixæéãäŊŋãŖãĻããīŧãããĢã¯éį§ã
ãĒããŽã§æŖįĸēãĢã¯UTCã¨ã¯22į§ãŽãããã§ããĻããã¯ãã§ãã
į§ãŽããŊãŗãŗãŽRTCã¯Unixæéãåģãã§ããã¨čãããģããč¯ããŽã§ããããīŧ
â
âĄâ Taku q...@yahoo.co.jp
â âĄâ powered by Pentium Pro 200 with FreeBSD 4.8-RELEASE
=> äģãã 35 åš´åã¤ã㨠1968 åš´čŖŊããžã åããĻããã§ãããã..
=>īŧ 2.11BSD ã¨ãã§ã
UNICSãįãžãããŽã1969åš´ã§ããã
FreeBSDã¯UNICSãŽį´įŗģã§ããīŧéēäŧåã¯æãŖãĻããĒããã¨ãĢãĒãŖãĻããžãã
#æčŋæ´å˛ãčĒŋãšãæŠäŧãããŖãĻīŧã¤ãååŋããĻããžããžããã
>ã¨ãããŽãBIOSã§čĻããæåģã¯æŽéJSTãĢããããĻãããžãã
local time(JST)ãé¸ãã ãã§ããããĒãã°JSTãĢããĻããã¯ãã
>įžå¨īŧFreeBSD4.8ãäŊŋãŖãĻããžããīŧãˇãšãã æč¨ãJSTãĢããĻããžãã
>ããã¨īŧUTCã¯ãŠããĢãäŊŋãŖãĻããĒããããĒæ°ããããŽã§ãã
>äŊãäŊŋãŖãĻãäŋŽæŖããã°č¯ãã ããŽčŠąãĒãŽã§č¯ãã¨ã¯æããžããīŧ
>æŖåŧīŧãĢã¯ãŠããĒãŽã§ããããīŧ
æåˇŽãŽãã¨ãæ°ãĢããĻãããŽã§ããããīŧãããĒãJSTãĢãĒãŖãĻãã
ããã§ããã¨ããįĩčĢãĢãĒããžãã
>=>] 2038-01-19 03:14:07 UTC
>=>ãŽååžãĢãããŽææ´å˛ã¯åããããŽįŦéãããŖãĻããã¯ãã§ãããã
>=># éį§åéĄãŽããæ°į§ãŽčĒ¤åˇŽããããžãã
32bit intãĒtime_tãoverflowãããæãã§ããã
>æčŋčĒŋãšãįĩæã§ã¯īŧUnixãŽå ´åīŧ1970åš´1æ1æĨãŽåå0æ(TAI)ã
>čĩˇįš(epoch)ã¨ããUnixæéãäŊŋãŖãĻããīŧãããĢã¯éį§ã
>ãĒããŽã§æŖįĸēãĢã¯UTCã¨ã¯22į§ãŽãããã§ããĻããã¯ãã§ãã
>
>į§ãŽããŊãŗãŗãŽRTCã¯Unixæéãåģãã§ããã¨čãããģããč¯ããŽã§ããããīŧ
TAIã¨UTCãŽåŽįžŠãčĒŋãšãžãããããããĻããããOS(FreeBSD)ããŠã
æąãŖãĻããããã
UNIXã§ãĒããĻãMINIXãŽčŠąã§ãããAndrew S. TanenbaumææãŽæŦãĢã¯
ãããŖãĄã
ãåēãĻæĨãžããInternet & TCP/IPåĩä¸į´ãĢãããĢãŧããŖãŗã°
ãããŧããŗã°ã¨ä¸Ļãã§ãŋã¤ããŗã°īŧæåģãŽæąãīŧãŽéčĻæ§ãæãĢč§ĻããĻã¯
åŋ åããĻããžãããæå
ãŽæŦãåæŖãĒããŦãŧããŖãŗã°ãˇãšãã ãã§ã¯ã
3įĢ ãåæŖãˇãšãã ãĢãããåæãã¨ããĻãP.115ããOSãĢåŋ
čĻãĒ夊æåĻ
ãŽįĨčãĢã¤ããĻčŋ°ãšãĻããžããã¨ãĻãéĸįŊããŽã§æ¯éä¸åēĻãčĒãã§čĻãĻ
ãã ããããããĒįįŦãŽåēæĨããããéĸįŊãæį§æ¸ãĒããĻãããŽäēēã¨
ãã°ãŠãšãģãĢããŧãããããæ¸ããĒãã§ãããįŽéąééãįĄã!
--
ä¸æååŋīŧ įĨæ¸ <mailto:k...@kobe1995.net>
NAKAMURA Kazushi@KOBE <http://kobe1995.jp/>
- Be Free(BSD), or Die...
> UNICSãįãžãããŽã1969åš´ã§ããã
PDP-7 㯠1964 åš´ãŽčŖŊåãŽæ§ã§ããPDP-11 㯠1970 åš´ã§ããã
1968 åš´äģĨåčŖŊãŽããˇãŗã§įžåŊš Unix ã¯åą
ãĒãããã§ãããMultics ã
įžåŊšã§åããĻãã¨ãããã¨ã¯ãĄããģãčãããã¨ããããžããããããŽ
ããŧããĻã¨ãĸã¯ãã¤ãããĒãã§ããããã
> FreeBSDã¯UNICSãŽį´įŗģã§ããīŧéēäŧåã¯æãŖãĻããĒããã¨ãĢãĒãŖãĻããžãã
ããŧãããéēäŧåã¯æãŖãĻãĒããã¨ãããŽããŠããããã¨ãæããŽã
ããããžããããčäŊäģļįãĒæģæãĢããå¯čŊæ§ãäŊãããŖãĻãã¨äģĨå¤ãĢã
ãUnix ã¨ãããããįĄãããĒããĻč¨ãããã§ããã? ãããããŽ
ããčĻãããããŠããŠããããã¨ãæåŗããĻããã ãããįč§Ŗã§ããžããã
æåįãĒįšã¯č¨ããžã§ããĒãã§ãããäžãã°ã
http://www.jp.freebsd.org/cgi/cvsweb.cgi/src/sys/kern/init_main.c?rev=1.230
ãĢã¯
| * Copyright (c) 1982, 1986, 1989, 1991, 1992, 1993
| * The Regents of the University of California. All rights reserved.
| * (c) UNIX System Laboratories, Inc.
| * All or some portions of this file are derived from material licensed
| * to the University of California by American Telephone and Telegraph
| * Co. or Unix System Laboratories, Inc. and are reproduced herein with
| * the permission of UNIX System Laboratories, Inc.
ã¨ããããŽã¯ããŠãæããžã?
> RTCãŽæåģã¯UTCãĒãŽã§ããããīŧããã¨ãJSTã§ããããīŧ
> ã¨ãããŽãBIOSã§čĻããæåģã¯æŽéJSTãĢããããĻãããžãã
> įžå¨īŧFreeBSD4.8ãäŊŋãŖãĻããžããīŧãˇãšãã æč¨ãJSTãĢããĻããžãã
> į§ãŽããŊãŗãŗãŽRTCã¯Unixæéãåģãã§ããã¨čãããģããč¯ããŽã§ããããīŧ
UNIX ã¯ããŋã¤ãå˛ãčžŧãŋãäŊŋãŖãĻã
įŦčĒãĢæåģįŽĄį(epoch ãããŽį§æ°)ããĻããžãã
FreeBSD ã§ã¯ RTC ãčĒããŽã¯čĩˇåæãããã§ãã
ããĒã㎠RTC 㯠JST ãĢåãããĻããŖãĻã
ããŽæ
å ąã¯ /etc/localtime ãĢæ¸ãããĻããĻã
FreeBSD ã¯čĩˇåæãĢãããčĻãĻã
ãĢãŧããĢãŽæč¨ãåæč¨åŽããžãã
įĨį°æåē <ca...@kgc.co.jp>
IIJIMA Hiromitsu wrote:
>>>äģãĢ㯠Alpha ãæčŋ㎠SPARC ã 64 ããããããģããĩã§ããã
>>
>> æčŋ? UltraSPARC 㯠PentiumPro ã¨åææããããããĒããŖãã§ãã?
>>ãããĄããŖã¨å¤ãããĒ?
>>īŧ ããŖã¨ããããŖãĄããæåãŽãã¤ã¯ãã°ãŖãĻãĻ 64bit ããąã ãŖããããĒã
>
>
> ããããããĢããŽããã§ãããã
ä¸åŋ1995,6åš´ãĢ㯠UltraSPARC ãåēåãŖãĻããžãããã¨ã¯ããæčŋããŽåŽįžŠã ãã§
ãã :-)
Taku wrote:
> Nobuhiro ShibuyaãããŽ<3EBA63FF...@dd.iij4u.or.jp>ãĢéĸããæį¨ŋã§ãã
> äžŋäšã§čŗĒåãããĻä¸ããã
> RTCãŽæåģã¯UTCãĒãŽã§ããããīŧããã¨ãJSTã§ããããīŧ
UNIXãRTCãĢ寞åŋããã¨ã(VAX寞åŋãããīŧ)ãRTC=GMT(ã ãUTCã ã
ãããĒããīŧã¨ããĻåŽčŖ
ãããžãããUNIXãŽå
é¨æč¨ãGMTã§ãããã
IBMPCãĢį§ģæ¤ããã¨ããĢãWindowsãDOSã¨ãŽããĨãĸãĢããŧããčĄã
ä¸ã§ä¸éŊåãčĩˇãããžããã
DOS/Windowsã¯RTC=ããŧãĢãĢãŋã¤ã ã¨ããĻåŽčŖ
ãããĻããããã
ã§ãPCã§åãUNIXã¯ãRTCãããŧãĢãĢãŋã¤ã ã§ããŖãĻãUTCã§ããŖãĻã
ãŠãĄããĢã寞åŋã§ãããããĒæŠčŊãåãããããĢãĒããžããã
ã¨ããããã§ããIBMPCãĒãJST,ãäģãŽæŠį¨ŽãĒãã°UTCãæŖãããã
ã¨ããįããĢãĒããŽããĒããã
éŊč¤æį´ãsai...@ist.osaka-u.ac.jp
In article <s7fel35...@xxx.kgc.co.jp>
ca...@kgc.co.jp writes:
> UNIX ã¯ããŋã¤ãå˛ãčžŧãŋãäŊŋãŖãĻã
> įŦčĒãĢæåģįŽĄį(epoch ãããŽį§æ°)ããĻããžãã
> FreeBSD ã§ã¯ RTC ãčĒããŽã¯čĩˇåæãããã§ãã
ãŋã¤ãå˛čžŧãŋãŽį˛žåēĻã¯ã10ããĒį§ãããã§ããããããããį˛žåēĻãŽ
éĢãæč¨ãåžããããã¨ããããŽã§ãããããã¯ãŠãããŖãĻãããŽ
ã§ããããã
ããĄãŽ FreeBSD 㧠clock_gettime() ㎠CLOCK_REALTIME ãããã
839 ããį§ã¨åēãĻããžããã
Sun ã¯ãclock_gettime() ã§ã¯ã10ããĒį§ã¨ã¯åēãĻããžãããåĨãĢ
gethrtime() ã¨ãããŽããããžãã
RTC ãŖãĻãReal Time Clock ã¨ããæåŗã§ããīŧ
Followup-To: fj.unix ã¨ããĻãããžãã
īŧŧīŧŧãæ°åãéãīŧãããããããããīŧãīŧŧīŧŧ
īŧŧīŧŧãįæŗĸ大åĻãéģåãģæ
å ąãããããããīŧŧīŧŧ
------------------------------------------------------------
#include <sys/time.h>
main()
{
struct timespec tp ;
clock_getres( CLOCK_REALTIME,&tp );
printf("tp.tv_sec: %u \n",tp.tv_sec );
printf("tp.tv_nsec: %u \n",tp.tv_nsec );
}
------------------------------------------------------------
In article <b9ijqa$9kp$1...@news522.nifty.com>
q...@yahoo.co.jp (Taku) writes:
> æčŋčĒŋãšãįĩæã§ã¯īŧUnixãŽå ´åīŧ1970åš´1æ1æĨãŽåå0æ(TAI)ã
> čĩˇįš(epoch)ã¨ããUnixæéãäŊŋãŖãĻããīŧãããĢã¯éį§ã
> ãĒããŽã§æŖįĸēãĢã¯UTCã¨ã¯22į§ãŽãããã§ããĻããã¯ãã§ãã
>
> į§ãŽããŊãŗãŗãŽRTCã¯Unixæéãåģãã§ããã¨čãããģããč¯ããŽã§ããããīŧ
īŧ°īŧŖãŽããŧããĻã§ãĸãäŋæããĻããæåģã¯ãčĩˇįšãããŽį§æ°ã§ã¯ãĒ
ããĻãĢãŦãŗããŧãŽåŊĸåŧã§åãããããĢãĒãŖãĻããããããĒãã§ãã
ããīŧ¯īŧŗã¨ã¯éĸäŋãĒããUnix ãčĩˇåããæãĢã¯ããĢãŦãŗããŧåŊĸåŧ
ãŽæč¨(2003/05/13 18:17:38 ãŽãããĒããŽ)ãčĒčžŧãã§ãããã
Unix ãŽå
é¨įãĒæč¨ãĢå¤æããĻããã¨ã
čŠŗããäēēãŽįĒãŖčžŧãŋãéĄãããžãã
In article <b9ijqa$9kp$1...@news522.nifty.com>
q...@yahoo.co.jp (Taku) writes:
> RTCãŽæåģã¯UTCãĒãŽã§ããããīŧããã¨ãJSTã§ããããīŧ
> ã¨ãããŽãBIOSã§čĻããæåģã¯æŽéJSTãĢããããĻãããžãã
> įžå¨īŧFreeBSD4.8ãäŊŋãŖãĻããžããīŧãˇãšãã æč¨ãJSTãĢããĻããžãã
> ããã¨īŧUTCã¯ãŠããĢãäŊŋãŖãĻããĒããããĒæ°ããããŽã§ãã
> äŊãäŊŋãŖãĻãäŋŽæŖããã°č¯ãã ããŽčŠąãĒãŽã§č¯ãã¨ã¯æããžããīŧ
> æŖåŧīŧãĢã¯ãŠããĒãŽã§ããããīŧ
Time Zone ã¯ããŠãĄãã§ãããããããĒãã§ãããBIOS 㨠OS (č¤
æ°ãããããĒã)ã§ãã¤ãã¤ãžãåãŖãĻããã°ã
īŧ°īŧŖãŽããŧããĻã§ãĸãæãŖãĻããæč¨ãĢéį§ãåģãæŠčŊãããã¨ã¯
æããžãããããããč¨åŽã¯ãBIOS ãĢã¯ãĒãã§ããããããã§å°
ããã¨ããã¨ãå
¨įļå°ããĒãã¨æããžããéį§ãåēãããåį´ãĢīŧ¯īŧŗ
å´ããīŧãˇãŖããããĻãŗããæãĢã§ãīŧč¨åŽããã°ãããŽã§ã
In article <ul8y91i...@pine.yorie.netside.co.jp>
MOCHIDA Shuji <moc...@netside.co.jp> writes:
> æį°īŧ NETside ã§ãã
> time_t ã 64bit ã§ãĄããã¨åã OS ãčŧãŖãĻãã°ã32bit ãĸãŧããã¯ããŖã§ã
> 2038 åš´äģĨéã大ä¸å¤Ģã ã¨æããžããã
ããã§ããĒãã§ããã¨ãããŽããããŧãããŖãšã¯ã¨ã CD-ROM ã¨ãã
č¨æļåĒäŊãĢäŋåãããããŧãŋã 2038åš´ãĢįŦæãĢæ¸ãæãããã¨ã
ã§ããĒããŽã§ããŗããŧãããĢããĻããéˇãããŽįãããŽä¸ĄæšãŽäŊįŗģ
ãĢ寞åŋããåŋ
čĻããããžããããããĢ㯠time_t ãŽãããæ°ãå¤ã
ãã ãã§ã¯å¯žåŋã§ããžããã
åããããĒæåŗã§ã2000åš´åéĄãããžã åŽå
¨ãĢã¯įĩãŖãĻããžããã
æãŽéģåãĄãŧãĢãŽããŧãŋã§æĨäģãīŧæĄãŽããŽãããŖããããĻããã
ããããŧãŋãīŧīŧīŧåš´ãããããŖãåžã§äŊŋãã¨ããĢãŠãč§Ŗéããã°
ãããã¨ãã芹ãæŽãŖãĻããžãã
In article <KATE.03M...@flash.tokyo.pfu.co.jp>
ka...@pfu.fujitsu.com (KATAYAMA Yoshio) writes:
> > Alpha ã UltraSPARC ã ã¨å˛ã¨čŊãĄãĻãžããã?(įŦ)
> ã㨠35 åš´ãåŖãããĢåãįļããããã¨ã¯æããĒããã§ããããã:-p
2000åš´åéĄãŽæãĢãããããĒäēãč¨ãŖãĻãžããããããŽããã°ãŠã
ããããĒãĢéˇãäŊŋãããã¨ã¯æããĒããŖããŖãĻãããã¯åžäģãŽįįą
ãĒãã§ãããããæŖįĸēãĢã¯ãããã°ãŠã æ¸ãæãĢãã¤ãžã§äŊŋããã
äŊãčããĻãĒããŖããã¨ãããã¨ã§ãããã
âSubject: the End of 32-bit time_t
In article <YAS.03Ma...@kirk.is.tsukuba.ac.jp>
>> æ°åīŧ įæŗĸ大åĻæ
å ąã§ãããããĢãĄã¯ã
>> > æį°īŧ NETside ã§ãã
>> > time_t ã 64bit ã§ãĄããã¨åã OS ãčŧãŖãĻãã°ã32bit ãĸãŧããã¯ããŖã§ã
>> > 2038 åš´äģĨéã大ä¸å¤Ģã ã¨æããžããã
>> ããã§ããĒãã§ããã¨ãããŽããããŧãããŖãšã¯ã¨ã CD-ROM ã¨ãã
åį´ãĢããŧããããŖãŗã°ããĻčĒåæĄåŧĩããã°īŧã¨æãããã
ãã¨ãã° ufs ã time_t 㯠32bit ãŋããã§ããã
īŧ 64bit 2038 ufs solaris 㧠yahoo.com ããĻãåéĄããã
īŧ 芹ããčĻã¤ãããĒããŋããã
čĢĻããĻ int ã 64bit ãĢããĻããžãã¨ãå¤ãããŖãšã¯ã¨ã
ãžãŖããčĒããĒããĒãããã§ãããčĒãŋčžŧãŋããŧãĢã大å¤ããã
īŧīŧ¯īŧŗåąããã大å¤ã§ãããinode ãŗãŗããŧãŋīŧ
īŧīŧīŧåš´äģĨä¸åããˇãšãã ææĄã§ã¯ãtime_t čĻãã§ãã¯ã§ãã...(æą)
tar ã¨ã dump ã§å¸åããĻå¤æãããĒãį°Ąåãããīŧå°į¨æããã
īŧ 64bit ããŧã¸ã§ãŗ㎠tar ã¨ãåēããŽã§ããããããããīŧ
>> æãŽéģåãĄãŧãĢãŽããŧãŋã§æĨäģãīŧæĄãŽããŽãããŖããããĻããã
>> ããããŧãŋãīŧīŧīŧåš´ãããããŖãåžã§äŊŋãã¨ããĢãŠãč§Ŗéããã°
>> ãããã¨ãã芹ãæŽãŖãĻããžãã
2069åš´äģĨéãčĨŋæĻãīŧæĄã§æąããˇãšãã ãæŗįãĢįĻæĸããã°
ãĒãã¨ããĒãããīŧ
īŧīŧæĄčĄ¨č¨ã ãŖãããįĄæĄäģļãĢ 70-69 -> 1970-2069 ãĢå¤æ (^^;
ãããĒãã¨ããäēįŽããĒãīŊãã¨ãããŖãĻå¤ããˇãšãã ãŽ
ãžãžæ¸ãžããã¨ããæãįĩļ寞ã§ãĻãˇãšãã åąãããčĻå´ããã
īŧããŽé į§ã¯ããŽä¸ã§ãããäģåĻįãĒäēēã¯æŗ¨æããžããã :-p
ãĄãŧãĢãĒãããã§ããã§ããčĒįæĨããŧãŋã¨ãã¯ãĸãĻãã§ãã
īŧãŖãĻããã¯ãã寞åŋæ¸ã§ããã
In article <b9qipl$11s$1...@caraway.media.kyoto-u.ac.jp>
>> ãĒããã§ãããģã¨ããŠčļã
ã§ãã m(..)m
>> >> > 2038 åš´äģĨéã大ä¸å¤Ģã ã¨æããžããã
>> åį´ãĢããŧããããŖãŗã°ããĻčĒåæĄåŧĩããã°īŧã¨æãããã
>> ãã¨ãã° ufs ã time_t 㯠32bit ãŋããã§ããã
ããã64bit ãĢãããŽã¯ãããŽãããã大å¤ã§ãããã
īŧįåŖãĢåãã ããŽã¯ã2080 åš´é ã¨ãŋãã
=>| * Copyright (c) 1982, 1986, 1989, 1991, 1992, 1993
=>| * The Regents of the University of California. All rights reserved.
=>| * (c) UNIX System Laboratories, Inc.
=>| * All or some portions of this file are derived from material licensed
=>| * to the University of California by American Telephone and Telegraph
=>| * Co. or Unix System Laboratories, Inc. and are reproduced herein with
=>| * the permission of UNIX System Laboratories, Inc.
é常ãĢéĸįŊãæįĢ ã§ãã
čäŊ樊ãåéĄãĢãĒãããŽé¨åãåŽå
¨ãĢåãé¤ãã4.4BSD-Liteãã§ããŽã
1994åš´ãĒãŽã§īŧããīŧ
Copyright (c) 1982, 1986, 1989, 1991, 1992, 1993
ãčäŊ樊ãŽæ´æ°åš´ãŽãããĒããŽã襨ããŽã§ããã°
4.4BSD-LiteäģĨåãŽããŽã§īŧããã¯äēåŽã§ãã
æŗåžãŽå°éåŽļã§ãĒããŽã§
Copyright (c) 1982, 1986, 1989, 1991, 1992, 1993
ãŽæåŗããŠãĒããæããĻããã ããã°ãããããã§ãã
> ããã§ããĒãã§ããã¨ãããŽããããŧãããŖãšã¯ã¨ã CD-ROM ã¨ãã
:
> ãĢ寞åŋããåŋ
čĻããããžããããããĢ㯠time_t ãŽãããæ°ãå¤ã
> ãã ãã§ã¯å¯žåŋã§ããžããã
ããã¯ããĄãããããĒãŽã§ãããå
ãŽčŠąããããŧããĻã¨ãĸ㎠64bit ãŽ
ãĩããŧãããģãããã¨åãŖããŽã§ãããæ¸ãããžã§ã§ãã
> åããããĒæåŗã§ã2000åš´åéĄãããžã åŽå
¨ãĢã¯įĩãŖãĻããžããã
> æãŽéģåãĄãŧãĢãŽããŧãŋã§æĨäģãīŧæĄãŽããŽãããŖããããĻããã
> ããããŧãŋãīŧīŧīŧåš´ãããããŖãåžã§äŊŋãã¨ããĢãŠãč§Ŗéããã°
> ãããã¨ãã芹ãæŽãŖãĻããžãã
ãããããŽåĢããĻã§ããã
> 2000åš´åéĄãŽæãĢãããããĒäēãč¨ãŖãĻãžããããããŽããã°ãŠã
> ããããĒãĢéˇãäŊŋãããã¨ã¯æããĒããŖããŖãĻãããã¯åžäģãŽįįą
> ãĒãã§ãããããæŖįĸēãĢã¯ãããã°ãŠã æ¸ãæãĢãã¤ãžã§äŊŋããã
> äŊãčããĻãĒããŖããã¨ãããã¨ã§ãããã
æ¸ããäēēããæ¤åããäēēãããããžã§äŊŋãããĒããã¨æãŖãĻãããã ã¨ãããã
æ¨ãĻãã°ããã¨æããã§ããã(*)ããããįãã¨ãäģäŊŋãŖãĻãäēēãã
ãäŊãŖãåĨ´ããã¤ãžã§äŊŋããčããĻãĒããŖããææ
Žãæĩ
ãããŖãĻč¨ããŽã¯
äŊãå¤ãĒæ°ãããžãã
īŧ (*) 㨠2000 åš´ãŽæãĢãããäģčŋã§č¨ãŖãĻãŋããããŠããŧäģããĒããŖã
īŧ čĻãããããžãã
ã¨ãããã¨ã§ãč˛ŦäģģæãŖãĻ 2038 åš´ããŽæĨäģĨåžã¯čĩˇåã§ãããããĢã
äģããäŊãŖã¨ãã°ããããĒã
> 4.4BSD-LiteäģĨåãŽããŽã§īŧããã¯äēåŽã§ãã
ããããããĒãã¨ãč¨ãããããããĒããĻ..
UNIX ãŽį樊æãŖãäēēãĢäžĩåŽŗãįŗãįĢãĻãããå¯čŊæ§ãŽãģã¨ããŠãĒãã
AT&T įąæĨãŽããĄã¤ãĢãããã¤ããããžãããžããä¸čēĢã¯ããããå
厚ãã
ãĒããããģã¨ããŠåŽå
¨ãĢæ¸ãå¤ããŖãĻããããŽã°ããã§ãããŠã
ãããĒãã¨ããããĒãã§ãããĒãĢčäŊ樊ã§åãįŽãäŊããããŽã
ããããããĒãã§ãã
īŧ ååŠį¨ããããåé
å¸ããããããŽãĒãčäŊ樊ãĢæ°ãäģããåŋ
čĻã¯
īŧ ãããžãããŠã
4.4BSD(įĄå°) 㨠4.4BSD-Liteã4.4BSD-Lite2 㨠FreeBSD 5.0 ãŽéãããã
32/V 㨠4BSD ãŽæšãããŖã¨ãéããã¨æãããŠãĒãã
MOCHIDA Shuji wrote:
> æį°īŧ NETside ã§ãã
> ã¨ãããã¨ã§ãč˛ŦäģģæãŖãĻ 2038 åš´ããŽæĨäģĨåžã¯čĩˇåã§ãããããĢã
> äģããäŊãŖã¨ãã°ããããĒã
32-bit time_t ãŽãĒãŧããŧãããŧãããĒãŦãĢãããĸãããŧãˇãšã
åŽįžãããˇãšãã ãŗãŧãĢãåŽčŖ
ãã§ããã
ãŊãŧãˇãŖãĢãģã¨ãŗã¸ããĸãĒãŗã°ãŽé åã§ãããīŧ
貥įŖã¯ããĄããäēēåŊãæãĻã¯å°įãŽåŊéãĢéĸããå ´åãžã§åĢããĻ
čĩˇåã§ããĒãã¨ããä¸įšåŧĩãã§æŧãéãããĒããããå¯ããĒãã
>> ãã¨ãã° ufs ã time_t 㯠32bit ãŋããã§ããã
>> tar ã¨ã dump ã§å¸åããĻå¤æãããĒãį°Ąåãããīŧå°į¨æããã
ãäŊŋããĒããããĻããžããŽããããã¨ããããŠãĢãã§ã¯ Read Only ã§ãã
ããĻãŗãã§ããĒãããããããããäŊŋããĒããĒããīŊããŖãĻããããã
åŽŖäŧããĻãããĻãããŽåžã§ Read Only ãĢããĻãį§ģčĄãäŋãã
严æšã§ 2 åš´ãããã°ååãããĒãã§ããããã
īŧ įĩãŋčžŧãŋãĸãŗã¯... æ¨ãĻãã(įŦ)
...ããŖãąã5 åš´ãããã¯ãããããĒ..
> ã§ãč¯ãčãããããĄãã㨠unsigned 寞åŋããããĻãã°
> 2106 åš´ããããžã§åéĄãĒãã¨ãããã¨ã§ããŋããĒ
> įĨããéĄã§æ¸ãžããã (^^;
2000 åš´ãŽæãŋãããĢå¤æ°ãį´åãžã§įĄé įã ã¨ããããĒãããįĨããžãããã
>>> ãã¨ãã° ufs ã time_t 㯠32bit ãŋããã§ããã
> ããã64bit ãĢãããŽã¯ãããŽãããã大å¤ã§ãããã
ããããĒã? ãĄããã¨å¤åĨããåēæĨãã°ãããĒ大å¤ãããĒããããĒ
æ°ãããžããã
> 32-bit time_t ãŽãĒãŧããŧãããŧãããĒãŦãĢãããĸãããŧãˇãšã
> åŽįžãããˇãšãã ãŗãŧãĢãåŽčŖ
ãã§ããã
ããããããžã§ãããĒããĻã.. ããã°ãŠã ãŽå
é ã§ãĄããģãŧã¸åēããĻ
įĩãã°ããã¨æããžãã
éããĻãããã¨ãæ¤åēã§ããĒãã¨ãããĒããŽã§ãããŽé¨åã¯į¨æããĒãã¨
ããĄã§ãããŠã
īŧ ããĄãŧã ãĻã¨ãĸãããĄãĒãä¸å¯čŊã§ããã
ãŽã§ã
> ãŊãŧãˇãŖãĢãģã¨ãŗã¸ããĸãĒãŗã°ãŽé åã§ãããīŧ
ãããĒãããããĒãã¨ãããĒããã¨ã
ãˇãšãã ã ã¨čŠąãåēį¯ãĢãĒããŽã§ ufs ã¨ãå¨ãéåŽã
âSubject: Re: the End of 32-bit time_t
In article <ul8smri...@pine.yorie.netside.co.jp>
>> æį°īŧ NETside ã§ãã
>> ãäŊŋããĒããããĻããžããŽããããã¨ããããŠãĢãã§ã¯ Read Only ã§ãã
>> ããĻãŗãã§ããĒãããã
ãĒããģãŠã
>> > ããã64bit ãĢãããŽã¯ãããŽãããã大å¤ã§ãããã
>>
>> ããããĒã? ãĄããã¨å¤åĨããåēæĨãã°ãããĒ大å¤ãããĒããããĒ
>> æ°ãããžããã
NFSã¯īŧ mmap ã¯ãã¨ãããããīŧīŧčĄæįĢ æ¸ããĻãĻãããŋã¨
æ§ããĄã¤ãĢãˇãšãã ãŽããĻãŗãæŠčŊãįŦįĢãĢį¨æããĻã(mount_pcfs ã¨ã
ãŋãããĢīŧ) ãˇãšãã ãŗãŧãĢãŦããĢã§timestamp ã 32->64 ããããĢ
å¤æããã°ããĒãã¨ãĒãåŽįžã§ããããĢæããĻããžããã
äģĨä¸ãã´ãīŧåĻč¨ã
åæãĢäēæŗã ããŽåã ufs64
#pragma ident "@(#)ufs64_fs.h 0.00 2021/01/13 SMI" /* SVr7.0 0.0 */
ãã
ps
ããããOSãåēããžã§ SunOS4 ã§ãã°ãã :-p
Taku wrote:
> čäŊ樊ãåéĄãĢãĒãããŽé¨åãåŽå
¨ãĢåãé¤ãã4.4BSD-Liteãã§ããŽã
> 1994åš´ãĒãŽã§īŧããīŧ
ãããŽé¨åãåŽå ¨ãĢåãé¤ãããã¨ããč¨čãčĒ¤č§ŖããĻããŽã§ã¯īŧ
USLã¨åč§Ŗäē¤æ¸ã§ããããŽé¨åã¯åĢãããã¨ã¯ãžãããĒããã
ã¨USLãä¸ģåŧĩããé¨åãåãé¤ããã ãã§ããŖãĻãAT&TįąæĨãŗãŧãã
100%åãé¤ããããã§ã¯ãĒãã¨ãããã¨ã
éŊč¤æį´ sai...@ist.osaka-u.ac.jp
sai...@ics.es.osaka-u.ac.jpãã:
> USLã¨åč§Ŗäē¤æ¸ã§ããããŽé¨åã¯åĢãããã¨ã¯ãžãããĒããã
> ã¨USLãä¸ģåŧĩããé¨åãåãé¤ããã ãã§ããŖãĻãAT&TįąæĨãŗãŧãã
> 100%åãé¤ããããã§ã¯ãĒãã¨ãããã¨ã
ãŠããĒå ´æããŠããããįįąã§ããžãããĒãããã¨č¨ãŖããŽãåãã
ãžã?
åãĢã¤ããããã ãå į¸ã¤ãããŖãĻãããããĒããã? äš é
åŊæãNetBSDãĒäēēã ãŖããã§ãããNetBSD0.9->1.0ã§åŽåŽåēĻããããĒãã
čŊãĄããŽã§ã0.9ãĒæäģŖãįĩæ§éˇãįļããžãããNetBSD0.9ã¨ãĻãåŽåŽããĻ
ããĻč¯ããŖããŽã§ããããuptimeãĩã¤ããŽä¸äŊbest5ããããNetBSDã
įŦå ããĻããžããã3000daysäģĨä¸į¨ŧåããĻãããĩã¤ããæãŖããããĒã
netcraftãŽrankingãĢčŧãŖãĻãã¨æãŖãããŠâĻãéãŖããŖãīŧ
> ãŋã¤ãå˛čžŧãŋãŽį˛žåēĻã¯ã10ããĒį§ãããã§ããããããããį˛žåēĻãŽ
> éĢãæč¨ãåžããããã¨ããããŽã§ãããããã¯ãŠãããŖãĻãããŽ
> ã§ããããã
>
> ããĄãŽ FreeBSD 㧠clock_gettime() ㎠CLOCK_REALTIME ãããã
> 839 ããį§ã¨åēãĻããžããã
FreeBSD i386 ã ã¨ã
CPU å
čĩ㎠TSC (time stamp counter) ã i8254 ãčĒãŋãžãã
i8254 㯠1193128Hz ãĒãŽã§ã838 nsec ãŽį˛žåēĻã§ããã
ntpd(8) ãããŋã§ããã§ãĻãã
options CLK_USE_I8254_CALIBRATION
options CLK_USE_TSC_CALIBRATION
äž<URL:http://home.jp.FreeBSD.ORG/cgi-bin/showmail/FreeBSD-users-jp/69506>
ã¨ãã¯ãčĩˇåæãĢããããŽãĢãĻãŗãŋãåŽæ¸ŦããĻã
åäŊãã¨ãŽããŠãããå¸åããæåģãŽį˛žåēĻãéĢãããã¨ããããŽã§ãã
įĨį°æåē <ca...@kgc.co.jp>
=>UNIX ã¯ããŋã¤ãå˛ãčžŧãŋãäŊŋãŖãĻã
=>įŦčĒãĢæåģįŽĄį(epoch ãããŽį§æ°)ããĻããžãã
=>FreeBSD ã§ã¯ RTC ãčĒããŽã¯čĩˇåæãããã§ãã
=>
=>ããĒã㎠RTC 㯠JST ãĢåãããĻããŖãĻã
=>ããŽæ
å ąã¯ /etc/localtime ãĢæ¸ãããĻããĻã
=>FreeBSD ã¯čĩˇåæãĢãããčĻãĻã
=>ãĢãŧããĢãŽæč¨ãåæč¨åŽããžãã
åŽã¯ããŽįåãįãããŽã¯īŧOSãŽæåģã¨BIOSãŽæåģãéãããã§ãã
įžå¨ntpdãčĩˇåãããĻããĻīŧOSãŽæåģã¯JSTãĢã´ãŖããããŖãĻããã¯ãã§ãã
ä¸æšBIOSãŽæåģã¯å
æĨæå ąã¨æ¯ãšãĻãŋãã¨0.5į§ããããããĻããžãã
į§ãŽæŠæĸ°ãŽå ´åīŧčĩˇåæãĢRTCãŽæåģãčĒãã åžãĢntpdã§æŖįĸēãĒæåģãĢ
ããããããĻããã¨ãããã¨ã§ããã
ããã§īŧOSããRTCã¸æåģãæ¸ãããæšæŗã¯ãĒãã§ããããīŧ
FreeBSDãŽMLãĒãŠãčĒãã¨cronãčĒåįãĢæ¸ãããã§ããããããĒãã¨ã
æ¸ããĻãããŽã§ããīŧåŽéãĢã¯ããã§ã¯ãĒãããã§ãã
ãĒãīŧntpdčĩˇåãŽåãĢntpdateãčĩˇåããĻæåģãããããĻããžãã
=>UNIXã§ãĒããĻãMINIXãŽčŠąã§ãããAndrew S. TanenbaumææãŽæŦãĢã¯
=>ãããŖãĄã
ãåēãĻæĨãžããInternet & TCP/IPåĩä¸į´ãĢãããĢãŧããŖãŗã°
=>ãããŧããŗã°ã¨ä¸Ļãã§ãŋã¤ããŗã°īŧæåģãŽæąãīŧãŽéčĻæ§ãæãĢč§ĻããĻã¯
=>åŋ åããĻããžãããæå
ãŽæŦãåæŖãĒããŦãŧããŖãŗã°ãˇãšãã ãã§ã¯ã
=>3įĢ ãåæŖãˇãšãã ãĢãããåæãã¨ããĻãP.115ããOSãĢåŋ
čĻãĒ夊æåĻ
=>ãŽįĨčãĢã¤ããĻčŋ°ãšãĻããžããã¨ãĻãéĸįŊããŽã§æ¯éä¸åēĻãčĒãã§čĻãĻ
=>ãã ããããããĒįįŦãŽåēæĨããããéĸįŊãæį§æ¸ãĒããĻãããŽäēēã¨
=>ãã°ãŠãšãģãĢããŧãããããæ¸ããĒãã§ãããįŽéąééãįĄã!
ãĸããžãŗã§čĒŋãšããããã¯ãĒ䞥æ ŧã§ãã
ããå°ãīŧåŽãæŦãããã¨ããããããŽã§ããã
In article <ba244t$sgk$2...@news522.nifty.com>
q...@yahoo.co.jp writes:
>=>UNIX ã¯ããŋã¤ãå˛ãčžŧãŋãäŊŋãŖãĻã
>=>įŦčĒãĢæåģįŽĄį(epoch ãããŽį§æ°)ããĻããžãã
>=>FreeBSD ã§ã¯ RTC ãčĒããŽã¯čĩˇåæãããã§ãã
>=>
>=>ããĒã㎠RTC 㯠JST ãĢåãããĻããŖãĻã
>=>ããŽæ
å ąã¯ /etc/localtime ãĢæ¸ãããĻããĻã
>=>FreeBSD ã¯čĩˇåæãĢãããčĻãĻã
>=>ãĢãŧããĢãŽæč¨ãåæč¨åŽããžãã
>åŽã¯ããŽįåãįãããŽã¯īŧOSãŽæåģã¨BIOSãŽæåģãéãããã§ãã
>įžå¨ntpdãčĩˇåãããĻããĻīŧOSãŽæåģã¯JSTãĢã´ãŖããããŖãĻããã¯ãã§ãã
>ä¸æšBIOSãŽæåģã¯å
æĨæå ąã¨æ¯ãšãĻãŋãã¨0.5į§ããããããĻããžãã
>į§ãŽæŠæĸ°ãŽå ´åīŧčĩˇåæãĢRTCãŽæåģãčĒãã åžãĢntpdã§æŖįĸēãĒæåģãĢ
>ããããããĻããã¨ãããã¨ã§ããã
ããã§ãã
>ãĒãīŧntpdčĩˇåãŽåãĢntpdateãčĩˇåããĻæåģãããããĻããžãã
ããã¯æŖãããã¨č¨ããä¸čŦįãĒæĩåã§ããntpdã¯ãä¸æ°ãĢæåģãåããã
ãããĒãã¨ã¯ãããkernel PLL(softwareįãĢåŽčŖ
ããPLLįēæ¯å¨īŧãŋã¤ã)
ã垎åĻãĢé˛ããããé
ããããããĻãåžã
ãĢæåģãåãããĻããžããã§ãĒãã¨
įĒįļæåģãã¯ãŧãããã¨å°ããĸããĒãąãŧãˇã§ãŗãåå¨ããžããŽã§ã
ã¨ããããčĒ¤åˇŽãäŊã大ããã¨åžã
ãĢåãããĻããããĒããĻãntpd
ãgive upããĻããžããžãããĒãŽã§čĩˇåæãĢntpdateã§ä¸æ°ãĢåãããĻããžãŖãĻ
ããäģĨéã¯ntpdã§ãæåģãã¯ãŧããããã¨ãŽãĒãããããã¤čĒ¤åˇŽãäŊã
大ãããĒããĒããããĢ垎åĻãĢkernel PLLãčĒŋæ´ããĻæåģãåããããŽã
ä¸čŦįãĒUNIXãŽããæšã§ããã
åĨãšãŦãããĢãĒãã¤ã¤ãããRTC chipãčļããį˛žåēĻã kernel PLL
ãŽåžĄčã§ããã¨č¨ãŖãĻãį§ãčŠŗããã¯čŋŊãæããĻããĒããŽã§ããã
čåŗãæãããããäģļãŽæŦãĢæããããĻããåčæįŽããæå
ãĢæã
sourceãčĒãã§čĻãĻãã ãããPentiumäģĨéãŽperformance counter
ãäŊŋãã°ãÎŧsãåãŖãĻnsãŽį˛žåēĻãåžãããããããããŖãĻãããã¯īŧ
âĻã¨æãŖãĻãããŽã§ããããããžã§æãåãŖãĻããžããã
>ããã§īŧOSããRTCã¸æåģãæ¸ãããæšæŗã¯ãĒãã§ããããīŧ
>FreeBSDãŽMLãĒãŠãčĒãã¨cronãčĒåįãĢæ¸ãããã§ããããããĒãã¨ã
>æ¸ããĻãããŽã§ããīŧåŽéãĢã¯ããã§ã¯ãĒãããã§ãã
æãã!MLãmanãŽããˇã´ã ãã§ãĒããããžãĢ㯠file system tree
ããããŖãĻãŋãžããããcronãžã§åããŖããŽãĒãã/etc/crontab
ãčĻãĻã
adjkerntz
ã¨ãããŽãčĻäģããŖãĻããč¨ŗãæãã!
NAKAMURA Kazushi wrote:
> ä¸æååŋīŧ įĨæ¸ã§ãã
> ããã¯æŖãããã¨č¨ããä¸čŦįãĒæĩåã§ããntpdã¯ãä¸æ°ãĢæåģãåããã
> ãããĒãã¨ã¯ãããkernel PLL(softwareįãĢåŽčŖ
ããPLLįēæ¯å¨īŧãŋã¤ã)
> ã垎åĻãĢé˛ããããé
ããããããĻãåžã
ãĢæåģãåãããĻããžããã§ãĒãã¨
> įĒįļæåģãã¯ãŧãããã¨å°ããĸããĒãąãŧãˇã§ãŗãåå¨ããžããŽã§ã
Solaris 2.2 (SunOS5.2)ã ãŖãã㎠date ãããŽæĩåã§æč¨ãããã
ããĻããããŽãæãåēããžããã
SunOS4.xã¨ãNEWS-OS 4.x ã§ã¯ã¯ãŠãˇãĢãĢãã¤å¤§éæãĒdateã§ããã
syslogãŽæéãæé ã§ãĒããĒããŽãåĢã ãŖãããããã¯ããã
ã¨ãããŖããŽã ãŖãããĒã
=>>į§ãŽæŠæĸ°ãŽå ´åīŧčĩˇåæãĢRTCãŽæåģãčĒãã åžãĢntpdã§æŖįĸēãĒæåģãĢ
=>>ããããããĻããã¨ãããã¨ã§ããã
=>ããã§ãã
=>
=>>ãĒãīŧntpdčĩˇåãŽåãĢntpdateãčĩˇåããĻæåģãããããĻããžãã
=>
=>ããã¯æŖãããã¨č¨ããä¸čŦįãĒæĩåã§ããntpdã¯ãä¸æ°ãĢæåģãåããã
=>ãããĒãã¨ã¯ãããkernel PLL(softwareįãĢåŽčŖ
ããPLLįēæ¯å¨īŧãŋã¤ã)
=>ã垎åĻãĢé˛ããããé
ããããããĻãåžã
ãĢæåģãåãããĻããžããã§ãĒãã¨
=>įĒįļæåģãã¯ãŧãããã¨å°ããĸããĒãąãŧãˇã§ãŗãåå¨ããžããŽã§ã
=>ã¨ããããčĒ¤åˇŽãäŊã大ããã¨åžã
ãĢåãããĻããããĒããĻãntpd
=>ãgive upããĻããžããžãããĒãŽã§čĩˇåæãĢntpdateã§ä¸æ°ãĢåãããĻããžãŖãĻ
=>ããäģĨéã¯ntpdã§ãæåģãã¯ãŧããããã¨ãŽãĒãããããã¤čĒ¤åˇŽãäŊã
=>大ãããĒããĒããããĢ垎åĻãĢkernel PLLãčĒŋæ´ããĻæåģãåããããŽã
=>ä¸čŦįãĒUNIXãŽããæšã§ããã
æéŖãããããžããã
čĒŋãšãĻįč§Ŗãããã¨ãæŖãããã¨ãããããžããã
#WebPageãMLãæŖãããã¨ãæ¸ããĻããã¨ã¯éããĒããŽã§
=>åĨãšãŦãããĢãĒãã¤ã¤ãããRTC chipãčļããį˛žåēĻã kernel PLL
=>ãŽåžĄčã§ããã¨č¨ãŖãĻãį§ãčŠŗããã¯čŋŊãæããĻããĒããŽã§ããã
=>čåŗãæãããããäģļãŽæŦãĢæããããĻããåčæįŽããæå
ãĢæã
=>sourceãčĒãã§čĻãĻãã ãããPentiumäģĨéãŽperformance counter
=>ãäŊŋãã°ãÎŧsãåãŖãĻnsãŽį˛žåēĻãåžãããããããããŖãĻãããã¯īŧ
=>âĻã¨æãŖãĻãããŽã§ããããããžã§æãåãŖãĻããžããã
ããã¯ãĄããŖã¨į§ãŽæãĢããžãããã§ãã
=>>ããã§īŧOSããRTCã¸æåģãæ¸ãããæšæŗã¯ãĒãã§ããããīŧ
=>>FreeBSDãŽMLãĒãŠãčĒãã¨cronãčĒåįãĢæ¸ãããã§ããããããĒãã¨ã
=>>æ¸ããĻãããŽã§ããīŧåŽéãĢã¯ããã§ã¯ãĒãããã§ãã
=>æãã!MLãmanãŽããˇã´ã ãã§ãĒããããžãĢ㯠file system tree
=>ããããŖãĻãŋãžããããcronãžã§åããŖããŽãĒãã/etc/crontab
=>ãčĻãĻã
=> adjkerntz
=>ã¨ãããŽãčĻäģããŖãĻããč¨ŗãæãã!
crontabãŽããŽčĄãčĻã¤ããĻæ¸ãį´ããžããã
31 0-23 * * * root adjkerntz -a
24æéä¸æéãĢä¸åãããããããĢããžããã
FreeBSDã¯ãĩãŧããŧį¨ãĒãŽãīŧå¤ãåããã¨ãåæãŽããã§
crontabã¯ããĒããæ¸ãæŋããĻãããĒãã¨īŧį§ãŽãããĒæŧåäēēéãŽ
ããˇãŗã¯æ°¸äš
ãĢperiodicãadjkerntzãåãããĢįĩãŖãĻããžãããã§ãã
æéŖãããããžããã
éˇåš´ãŽįåãč§Ŗããžããã
In article <0305172118...@ns.kobe1995.net>, k...@kobe1995.net (NAKAMURA Kazushi) writes
> įĒįļæåģãã¯ãŧãããã¨å°ããĸããĒãąãŧãˇã§ãŗãåå¨ããžããŽã§ã
ããããããæŦåŊãĒããããŧãPCãŽãĩãšããŗããã垊æ§ããã¨ããĢã
ãããã¯å
¨æģ
ã§ããã
ã§ãBSD/OS ã§åŽéããĩãšããŗããŽæãĢãããŖããæåģãåãããã
ãŖãĻãŽãããŖãĻããããã§ã
cron ãããŽãããåĸãã§åŽčĄããã
ã¨ããįŽãĢããŖããã¨ãããŖãĻãããããã ãã ... ãã¨
æãŖããã¨ããããžãã
nptdate ãĢãä¸æ°ãĢåããããĒããˇã§ãŗãããŖãĻåã¯ããã
äŊŋãŖãĻãããĒã
ãŖãĻãããããĒãŽã§ãã¯ãŧãããã¨å°ããĸããĒãąãŧãˇã§ãŗãŖãĻãŽã¯
éŊå¸äŧčĒŦãĒãŽã§ã¯ãĒããã¨æããžãã
ãĒããSun OSã§æč¨ãŽãã°ãããŖãĻUnixãŽæåģããĩããĩãåã
ãĒããĻãŽãããŖããĒãã
> adjkerntz
> ã¨ãããŽãčĻäģããŖãĻããč¨ŗãæãã!
ãããããã¯ã¯ãããĻčĻãã
---
Shinji KONO @ Information Engineering, University of the Ryukyus,
PRESTO, Japan Science and Technology Corporation
æ˛ŗéįæ˛ģ @ įį大åĻåˇĨåĻé¨æ
å ąåˇĨåĻį§,
į§åĻæčĄæ¯čäēæĨåŖããããį įŠļ21(æŠčŊã¨æ§æ)
=>nptdate ãĢãä¸æ°ãĢåããããĒããˇã§ãŗãããŖãĻåã¯ããã
=>äŊŋãŖãĻãããĒã
=>
=>ãŖãĻãããããĒãŽã§ãã¯ãŧãããã¨å°ããĸããĒãąãŧãˇã§ãŗãŖãĻãŽã¯
=>éŊå¸äŧčĒŦãĒãŽã§ã¯ãĒããã¨æããžãã
å°čĻæ¨Ąãˇãšãã ã§ã¯ããã§ããīŧ大čĻæ¨ĄãŽãˇãšãã īŧäžãã°
ISPãŽãĄãŧãĢãĩãŧããŧãĒããã¯ã¯ãŧãããã¨å¤§å¤ã ã¨æããžãã
åããŋã¤ã ãšãŋãŗãã§åŽæéãŽãã¨ãĒããĄãŧãĢãįēäŋĄããããīŧ
ã¯ãŠã¤ãĸãŗãå´ãĢã¯å¤§ããĒåéĄã§ã¯ãĒããããĒæ°ãããžããīŧ
ãĩãŧããŧå´ã§ã¯ããã§ãĒããããĒæ°ãããžãã
ããããããâ
ãããã¯ãŧããããå°ãããŽčĒŦæãĢč¯ãäŊŋãããĻããäžã§ãã
In article <ba7quf$18k$2...@news521.nifty.com>, q...@yahoo.co.jp (Taku) writes
> åããŋã¤ã ãšãŋãŗãã§åŽæéãŽãã¨ãĒããĄãŧãĢãįēäŋĄããããīŧ
> ã¯ãŠã¤ãĸãŗãå´ãĢã¯å¤§ããĒåéĄã§ã¯ãĒããããĒæ°ãããžããīŧ
> ãĩãŧããŧå´ã§ã¯ããã§ãĒããããĒæ°ãããžãã
> ããããããâ
> ãããã¯ãŧããããå°ãããŽčĒŦæãĢč¯ãäŊŋãããĻããäžã§ãã
ä¸æĻæĒæĨãĢããŖãĻããžãŖãããŽãåŧãæģããŽãĢããĄããŖã¨é
ããã
ãŖãĻãŽã¯ããããĒã
ãĄãŧãĢãĩãŧãã§å°ããŽã¯æéãéĄãŖãæã§ããããåžã
ãĢæéãéĄ
ãŖãããããæäŊã ... ãã ãæéã ããŽãŋã¤ã ãšãŋãŗããĒããĻãŽ
ãäŊŋããã¨čĒäŊãã ãã ããĒæ°ã¯ããžãããéãįĒåˇãåĨãĢå
ĨãŖãĻ
ããã°ãæéããããŽãŧãŖãĻãåéĄãĒãã
BSD/OSã¯ãæéãæģããŽãįĻæĸãããŗãŧããå
ĨãŖãĻããĻæäŊã§ããã
įĩåąããããåŊãĻãĻč§Ŗé¤ãããŖãã
ä¸åã¯ãžãŖããŽã¯ãSolaris 2.6 ã§Y2KãŽããšãã§2000åš´ãĢæč¨ã
é˛ããĻæģããã¨ãã ãĒãsocket ãŽtimeout remove ãåããĒããĒãŖ
ãããããŖãĻãport ãčļŗããĒããĒãŖãĻãããã¯ãŧã¯ãæģãã§ããž
ããžããã
> =>>ããã§īŧOSããRTCã¸æåģãæ¸ãããæšæŗã¯ãĒãã§ããããīŧ
> =>>FreeBSDãŽMLãĒãŠãčĒãã¨cronãčĒåįãĢæ¸ãããã§ããããããĒãã¨ã
> =>>æ¸ããĻãããŽã§ããīŧåŽéãĢã¯ããã§ã¯ãĒãããã§ãã
> =>æãã!MLãmanãŽããˇã´ã ãã§ãĒããããžãĢ㯠file system tree
> =>ããããŖãĻãŋãžããããcronãžã§åããŖããŽãĒãã/etc/crontab
> =>ãčĻãĻã
> => adjkerntz
> =>ã¨ãããŽãčĻäģããŖãĻããč¨ŗãæãã!
adjkerntz -a ã§ã¯ããŋã¤ã ãžãŧãŗãå¤ããŖããããĒãéãã
RTC (CMOS ã¯ããã¯) ã¯æ¸ãå¤ãããžããã
ã¤ãŧããadjkerntz(8) ãĢæ¸ããĻãã
| -i 㧠SIGTERM ãåããæãĢ CMOS ãæ¸ãæãã
ã¨ãããŽããį§ãįĨãéãã¯æŖããæŠčŊãããã¨ãããžããã
(ã ããčĩˇåæãĢ ntpdate -sbv ã¨ããŽãä¸čŠąãĢãĒãåŋ
čĻããã)
ãĻãĒããã§ã
> 24æéä¸æéãĢä¸åãããããããĢããžããã
ããã¯
<URL:http://home.jp.FreeBSD.ORG/cgi-bin/showmail/FreeBSD-users-jp/69921>
ãŽããã°ãŠã ãä¸æĨä¸åēĻčĩ°ããããŽãããããã§ãã
(return 0; ãããã¯ããŖãæšããããã)
ããĄã¯åŽéãĢãããčĩ°ãããĻããžãã
ãããããžã§ãuptime 128 days ãĒããˇãŗ
(<URL:http://www.tochigi.com/ntp/>)
ã§ã
gettimeofday = 09:07:42
RTC = 09:07:42
ã§ãã
įĨį°æåē <ca...@kgc.co.jp>
> ä¸åã¯ãžãŖããŽã¯ãSolaris 2.6 ã§Y2KãŽããšãã§2000åš´ãĢæč¨ã
> é˛ããĻæģããã¨ãã ãĒãsocket ãŽtimeout remove ãåããĒããĒãŖ
> ãããããŖãĻãport ãčļŗããĒããĒãŖãĻãããã¯ãŧã¯ãæģãã§ããž
> ããžããã
Windows ã§ããã
ã¨ãããˇãšãã ãŽããĨãŧãããŋã¤ã ãĸãĻãįŽĄįãæč¨ãĢäžåããĻããŽã§ã
SNTP ã¯ãŠã¤ãĸãŗãããããã¨æéãæģãã¨ã
ããã ãã§ããã¯ããĻããžããžããã
æéãéæĩããã¨ãmake(1) ã¯ããĒãæ¸æããžããã
ãžãæéãããŽãããé
ããĻããæãã
įžä¸å make ããĻããŋãŧã˛ãããäŊããĒãã¨ãããžãĢãããžãã
įĨį°æåē <ca...@kgc.co.jp>
>> USLã¨åč§Ŗäē¤æ¸ã§ããããŽé¨åã¯åĢãããã¨ã¯ãžãããĒããã
> ãŠããĒå ´æããŠããããįįąã§ããžãããĒãããã¨č¨ãŖããŽãåãã
> ãžã?
sys/kern/init_main.c ãĢã¤ããĻã¯ãNet/2 ã§ã¯ UC ãŽãŋ㎠Copyright ã
äģããĻããžããNet/1 ãĢã¯ãããĢ芲åŊããããĄã¤ãĢã¯åĢãžããžããã
UC å´ã¯ init_main.c ã¯åŽå
¨ãĢæ¸ãå¤ããŖãĻããããããã¯åį´ãĒå
厚ã§
čĒ°ãæ¸ããĻãäŧŧããããĒããŽãįãŽįįąã§ãčäŊ樊äžĩåŽŗãä¸ģåŧĩã§ããå¯čŊæ§ã
äŊãã¨ãNet/2 ãŽæįšã§ã¯čããĻãããŽã§ã¯ãĒãã§ããããã
USL ããããã¯ãĻããŽãŗãŧããããŧãšã ããããĢã¤ããĻã¯åēããĻãããã
ãĻããŽååå
Ĩãããã¨č¨ãŖããŽã§ã¯ãĒãã§ãããã?
> åãĢã¤ããããã ãå į¸ã¤ãããŖãĻãããããĒããã? äš é
ãããĢčŋããã§ã¯ãĒãã§ããããã
åč§ŖãĢčŗãŖããŽã¯ãįĩåą SystemV ãĢåĢãžãã UCB ãŽãŗãŧããĢ寞ãã
Copyright ãæč¨ãããĻããĒãã¨ãã寞æ訴č¨ãčĩˇããããããã§ããã?
BSD ãŠã¤ãģãŗãšãŽããŽé
ããĒããã°ã4.4BSD-Lite ã¯įĄããŖãããįĨããĒãã
īŧ Net/2 ã¯ããæčŋãžã§æŦåŊãĢãįĄããŖãããåįļã§ãããã
ku...@gssm.otsuka.tsukuba.ac.jp wrote:
> äš
éã§ãã
>>USLã¨åč§Ŗäē¤æ¸ã§ããããŽé¨åã¯åĢãããã¨ã¯ãžãããĒããã
>>ã¨USLãä¸ģåŧĩããé¨åãåãé¤ããã ãã§ããŖãĻãAT&TįąæĨãŗãŧãã
>>100%åãé¤ããããã§ã¯ãĒãã¨ãããã¨ã
> ãŠããĒå ´æããŠããããįįąã§ããžãããĒãããã¨č¨ãŖããŽãåãã
> ãžã?
įĸēããåč§Ŗå
厚ã¯éå
Ŧéã ãŖãã¯ãã§ãããããããĒãã
UCBãããããã¯æã
ããšã¯ãŠããããæ¸ãããŗãŧãã ãã¨
ãŋãĒããĻNet/2ã§å
Ŧéããč
ãĢ寞ããĻããUSLãŽæ¨ŠåŠãåãļãã¨
ä¸ģåŧĩãããŽãĢã¯éããĒããŽã ãããã
å¤é¨ããããããŽã¯ã4.4BSD/Liteã§ãphysio.cã¨ãacct.cã¨ãã
īŧåãŽããĄã¤ãĢãåé¤ããããã¨ãĒãŠã ãã§ããã
ãã¨ãčĒŋãšãããããã¨æãããŠãUSLãŽcopyrightãčŋŊå ãããĻ
4.4BSD-LiteãĢåĢãžããĻããã¨ãããæåĨãäģããã¨ããã§ãããã
éŊč¤æį´ sai...@ist.osaka-u.ac.jp
sai...@ics.es.osaka-u.ac.jpãã:
> įĸēããåč§Ŗå
厚ã¯éå
Ŧéã ãŖãã¯ãã§ãããããããĒãã
éå
Ŧéã ãŖããã§ããããããäŊåš´ãããŖãĻããããã§ãæ´å˛įææ¸
ãŋãããĢãã¤ãã¯å
ŦéããĻæŦ˛ããæ°ãã
> UCBãããããã¯æã
ããšã¯ãŠããããæ¸ãããŗãŧãã ãã¨ãŋãĒããĻ
> Net/2ã§å
Ŧéããč
ãĢ寞ããĻããUSLãŽæ¨ŠåŠãåãļãã¨ä¸ģåŧĩãããŽãĢã¯
> éããĒããŽã ãããã
芹ãŽįã¨ããĻã¯ããã§ãããããŠčĢæ ãåãããĒãã§ããããã
> å¤é¨ããããããŽã¯ã4.4BSD/Liteã§ãphysio.cã¨ãacct.cã¨ãã
> īŧåãŽããĄã¤ãĢãåé¤ããããã¨ãĒãŠã ãã§ããã
>
> ãã¨ãčĒŋãšãããããã¨æãããŠãUSLãŽcopyrightãčŋŊå ãããĻ
> 4.4BSD-LiteãĢåĢãžããĻããã¨ãããæåĨãäģããã¨ããã§ãããã
ãããĒããģãŠãããĻãŋãã¨åé¤ã¨copyrightčŋŊå ã¨ãŽįˇåŧããĒããã
čŦã§ããã
åį´ãĢãį¨åēĻãŽåéĄãã¨ãããã¨? äš é
> ããŽãŗãŧãåčŗĒãäŊãįįąã¨ããĻããã¤ãĻAT&TãŽãŗãŧããčĻããã¨ã
> åēæĨãäēēãæ¸ãããŗãŧããAT&TãŽčäŊįŠã¨ãŋãĒããã¨ä¸ģåŧĩããããŽã§ã
> AT&TãŽãŗãŧããčĻãã¯ããįĄãæ°å
ĨįãĢæ¸ãããããååŧããĻãĄãã
> ãŋãããĒč¨ãč¨ŗãčĻããããĒã
ããã ã¨ããã¨
http://www.jp.netbsd.org/People/CSRG-contrib.html
ããããĢååãŽãããŖãĻãäēēãĒãããģã¨ããŠãĸãĻããĢãĒãŖãĄããã¨æããŽã§ã
å°ãĒãã¨ãåč§Ŗåžã¯å¤§ä¸å¤ĢãĢãĒãŖããã§ããããã
> ããĻč¯ããŖããŽã§ããããuptimeãĩã¤ããŽä¸äŊbest5ããããNetBSDã
> įŦå ããĻããžããã3000daysäģĨä¸į¨ŧåããĻãããĩã¤ããæãŖããããĒã
1.1B ㎠sparc ã ãŖãããéˇããã¨ä¸äŊãĢåą
ãčĻãã¯ãããžãã4 åš´ããããã
ãĒããŖãããĒã3000 æĨã ã¨ã8 åš´ 2 ãĩæ... 0.9 㯠1993 åš´ãĒãŽã§ã
į´åžããã¨ããĻã 2001 åš´ãžã§ãããŖãĻããã¨ãĢãĒããžã..
> sai...@ics.es.osaka-u.ac.jpãã:
> > įĸēããåč§Ŗå
厚ã¯éå
Ŧéã ãŖãã¯ãã§ãããããããĒãã
>
> éå
Ŧéã ãŖããã§ããããããäŊåš´ãããŖãĻããããã§ãæ´å˛įææ¸
> ãŋãããĢãã¤ãã¯å
ŦéããĻæŦ˛ããæ°ãã
ãĄãããŠSCOã¨ãŽč¨´č¨ãããŋã§ãããĒč¨äēããããžããīŧ
http://japan.cnet.com/news/pers/story/0,2000047682,20054524,00.htm
: 90åš´äģŖååãĢã¯ãäģåã¨ããäŧŧããąãŧãšãããããĒãŧããŗãŊãŧãšOSãĢUnixãã
: įãžãããŗãŧããäŊŋãããĻããã¨ãŽč¨´ããæŗåģˇéäēãĢãžã§įēåąãããã¨ãããŖ
: ããããŽã¨ãã¯AT&TãããĢãĒããŠãĢããĸ大åĻãį¸æãĢãå大åĻã§éįēããBSD
: ãAT&TãŽæã¤UnixéĸéŖãŽčäŊ樊ãäžĩåŽŗããã¨č¨´ãããæįĩįãĢã¯ãAT&TãŽä¸ģåŧĩ
: ãåŊãĻã¯ãžãįŽæããåŽã¯ããŖã4ãĢæãããĒããã¨ãæŗåģˇãįĒãæĸãã大åĻ
: å´ã¯čĢäēãįļããäģŖãããĢãããŖãã¨čŠ˛åŊįŽæãåĨãŽãŗãŧããĢæ¸ãæããĻããžãŖ
: ããįĩåąAT&Tã¯ãčŖå¤ãĢãããŖãč˛ģį¨ãæ¯æããã¨ã§å¤§åĻå´ã¨åč§Ŗããã
æĨæŦčĒã§ã¯ææ§ã§ããīŧåæã§ã¯ "AT&T then settled the case by paying the
university's court costs." ã¨ãĒãŖãĻããīŧæ¯æãŖããŽã¯AT&Tå´ã ããã§ãīŧ
ãããæŖįĸēããŠããã¯ããããžããīŧ
http://www.openresources.com/documents/open-sources/node32.html
ãŽæåžãĢã¯īŧ
: The result was that three files were removed from the 18,000 that made
: up Networking Release 2, and a number of minor changes were made to
: other files. In addition, the University agreed to add USL copyrights
: to about 70 files, although those files continued to be freely
: redistributed.
ã¨ãããžãīŧč˛ģį¨äēã ãĢã¤ããĻã¯čĻã¤ãããžããã§ããīŧ
UCBã¨ããŖãããĢ訴ããããBSDIãŽīŧåč§ŖãĢéĸãããĸããĻãŗãš
http://www.daemon.org/bsd-releases/misc/USL-lawsuit
ãĢã¯įĸēããĢãããŽäģãŽåč§Ŗå
厚ãĢã¤ããĻã¯éå
Ŧéãã¨ãããžããīŧ
åį°æĻå¸
In article <m33cj6u...@maedapc.cc.tsukuba.ac.jp>
MAEDA Atusi <ma...@cc.tsukuba.ac.jp> writes:
> ãĄãããŠSCOã¨ãŽč¨´č¨ãããŋã§ãããĒč¨äēããããžããīŧ
> http://japan.cnet.com/news/pers/story/0,2000047682,20054524,00.htm
éĸįŊãč¨äēã§ããã
ã¨ããšããŧããŽčĻįšīŧLinuxãĢ寞ããĻäģæããããåŋįæĻ
Bruce Perens
ãã¯ã¤ããŊããã Unix ãŽãŊãŧãšãŗãŧããŽãŠã¤ãģãŗãšãåãŖãĻč
ã
ãĢäŊŋããã¨ããĻãããã¨ãããŽãæåžãŽčŠąãĒãŽã§ãããéä¸ãŽ
æŦĄãŽé¨åãįšãĢéĸįŊããŖãã§ãã
------------------------------------------------------------
ãããã§ãSCOãŽåššé¨ã¯ãåŽãŽããč¨ŧæ ã¯äŊãčĻããĒããžãžã§ãčĒ
åããĄãŽčäŊ樊ã§äŋčˇããããŗãŧããLinuxãĢæĩį¨ãããã¨č¨ãįĢ
ãĻãĻããã
...
ããã§ãĢä¸éãĢåēåãŖãĻãããLinuxãŽãŊãŧãšãŗãŧããåé˛ããįĄ
æ°ãŽCDãŽãĒããããåéĄã¨ãĒããããĒįŽæããããããŖãąãã¨æļã
ãĻããžãããMcBrideãŽč¨ãčã ã¨ããžãã§ãããĒãã¨ãå¯čŊãŋã
ããĢčãããã
------------------------------------------------------------
ãããŽé¨åããŗããŧãããã¨å ´æãį¤ēãã°ãč¨ŧæ é æģ
ãããããį¤ē
ããĒãã㨠SCO ãä¸ģåŧĩããĻãããããŠãč¨ŧæ é æģ
ã¯įĄįã§ãã
ã§ãæĸãĢãŗããŧãããĻãããããããžããããŽé¨åãå
ŦéããĻãã
SCO ãĢã¨ãŖãĻã¯ãããäģĨä¸æã¯ããĒãã¯ããĒãã ããŠãå
ŦéããĒãã
ã¨ãããã¨ã¯ãSCO ã¯ãäŊãŽæ šæ ã¯æãŖãĻããĒããã¨ããæ¨čĢã§ãã
In article <x765o5g...@maiorica.uni.sony.co.jp>
l...@uni.sony.co.jp writes:
> äŊč¤éæã§ãã
> SCOã¯2001åš´5æãĢNovellãããšããŗãĸãĻãããLinuxããšããĒããĨãŧãŋãŽ
> CalderaãĢ財åãããžããã
> http://www.caldera.com/
ãããĒããĨãŧãšãčããæ°ããããã
In article <baf8nm$2qgl$1...@maha2.doga.co.jp>
Masamichi Takatsu <ta...@doga.jp> writes:
> éĢæ´Ĩ@ããŧãŦã§ãã
> æŖįĸēãĢã¯ãSCO ãŽUNIXé¨éãCalderaã財åã§ããããã¨å
ąãĢãæŽã㎠SCO ã¯
> Tarantella ãĢį¤žåå¤æ´ããCaldera ã¯2002åš´8æãĢ SCO ãĢį¤žåãå¤æ´ããĻããžãã
> ã§ããŖãĻãäģåãŽč¨´č¨é¨ãã¯Calderaãį¤žåå¤æ´ããæ°ããSCOį¤žãčĩˇããã
> ããŽã§ããã
ãããĒããĨãŧãšãčããæ°ããããããŠãããŖããåŋããĻããžããã
Subject: ㎠case ã¯ãã訴č¨ããŽæåŗã§ããããŽéãããŦããŽå
åšãåæéč¨ŗã§ããå ´åãã¨č¨ŗããĻãããã ãããŠããããããŽã
čĻã¤ããĻãį§ãčąčĒãããžããĒãŖããĒãã¨éĸåŋããžãããīŧåŊį¤žæ¯īŧ
System V Release 5 ã¨ãããŽã¯ããŠããĒãŖããã§ãããŖãīŧ
īŧŧīŧŧãæ°åãéãīŧãããããããããīŧãīŧŧīŧŧ
īŧŧīŧŧãįæŗĸ大åĻãéģåãģæ
å ąãããããããīŧŧīŧŧ
=>ããã¯
=><URL:http://home.jp.FreeBSD.ORG/cgi-bin/showmail/FreeBSD-users-jp/69921>
=>ãŽããã°ãŠã ãä¸æĨä¸åēĻčĩ°ããããŽãããããã§ãã
=>(return 0; ãããã¯ããŖãæšããããã)
=>ããĄã¯åŽéãĢãããčĩ°ãããĻããžãã
=>ãããããžã§ãuptime 128 days ãĒããˇãŗ
=>(<URL:http://www.tochigi.com/ntp/>)
=>ã§ã
=>
=>gettimeofday = 09:07:42
=> RTC = 09:07:42
=>
=>ã§ãã
ããŖãĻãŋãžããã
åããĻãŗãŗãã¤ãĢãããŽã§å°ãæéåããžãããīŧ
äŊã¨ããĒããžããã
BIOSãŽæč¨ã¨éģ芹ãŽæå ąãã´ãŖããããŖãĻããžãã
é常ãĢæ°æãĄãč¯ãã§ãã
æéŖãããããžããã
â
âĄâ Taku t...@pop.707.to
>> æ˛ŗéįæ˛ģ @ įį大åĻæ
å ąåˇĨåĻã§ãã
>>
>> In article <0305172118...@ns.kobe1995.net>, k...@kobe1995.net (NAKAMURA Kazushi) writes
>> > įĒįļæåģãã¯ãŧãããã¨å°ããĸããĒãąãŧãˇã§ãŗãåå¨ããžããŽã§ã
>>
>> ããããããæŦåŊãĒããããŧãPCãŽãĩãšããŗããã垊æ§ããã¨ããĢã
>> ãããã¯å
¨æģ
ã§ããã
ã ãã APMã§ãACPIã§ããĩãšããŗã垊æ§æãĢã¯
BIOSãããRTCčĒãã§ãˇãšãã æåģãæ´æ°ãããã¨éįĨãæĨãžãã
ããã¤ãšããŠã¤ãæ¸ãäēēããįĨããĒããĻããããã¨ã§ãã
--
kabe
SCOãŽčŖå¤ãŽčŠąã§ãããslashdot.jp ãŽæã§ãããĒ芹ãåēãĻããžãã
http://slashdot.jp/articles/03/07/25/1610255.shtml?topic=17
SCOãIBMãŽčäŊ樊ãčĒããã
wakatono ãĢãã Saturday July 26,@01:10AM
ããŽä¸ã§ãį´šäģãããĻãããŽã§ãããæŦĄãŽ Open Source
Initiative ㎠Eric Raymond ãŽãã¸ãˇã§ãŗãģããŧããŧ ãéĸįŊãã§
ããã
http://opensource.jp/sco/sco-vs-ibm.html
åãĢ SCOčŖå¤åéĄã ãã§ãĒããĻãUnix ãŽæ´å˛ãĢéĸããĻæ¸ãããĻã
ãæãĒãŠãéĸįŊãã§ããUnix Systems Laboratories ãUC
Berkeley ã訴ããčŖå¤ã§ããåŽã¯ãBerkeley ãŽãŗãŧãã System
V ãĢãŗããŧããĻãčäŊæ¨ŠčĄ¨į¤ēãåãŖãĻãŗããŧããĻããã¨ãããã¨ãĢ
ãĒãŖãĻãéæ訴ãããããĢãĒãŖãĻåč§Ŗããã¨ãã芹ãéĸįŊããŖãã§
ãã
http://opensource.jp/sco/sco-vs-ibm.html#id2852926
> Berkeley ã訴ããčŖå¤ã§ããåŽã¯ãBerkeley ãŽãŗãŧãã System
> V ãĢãŗããŧããĻãčäŊæ¨ŠčĄ¨į¤ēãåãŖãĻãŗããŧããĻããã¨ãããã¨ãĢ
> ãĒãŖãĻãéæ訴ãããããĢãĒãŖãĻåč§Ŗããã¨ãã芹ãéĸįŊããŖãã§
å
ˇäŊįãĢãŠãŽé¨åãã¨ãããŽã¯æĒã ãĢ SCO ã¯å
ŦãĢã¯į¤ēããĻãĒããããã§ããã
äžã¨ããĻ RCU, JFS, NUMA ãĢéĸããé¨åã¨ããã芹ã¯åēãĻãããã§ãIBM å´ãã
ããĻãããã¤ãŖããã ãŽã¯ããã ãã§ãSysV ãŽãŗãŧãã¯å
ĨãŖãĻãĒãããã¨
č¨ããŽã¯éŖãããã¨ãĒãã§ããããããCSRG ã Net/1 ã Net/2 ããžã¨ãã
ãŋãããĢãããããã¨ããäŧŧã芹ãĢãĒãããããĒããã¨æããŽã§ãããŠãã
įįąãããŖãĻãããã§ããĒããŽããĒããĒãŠã¨ãæãŖãĻããžããžãã
In article <ul81xwb...@pine.yorie.netside.co.jp>
MOCHIDA Shuji <moc...@netside.co.jp> writes:
> å
ˇäŊįãĢãŠãŽé¨åãã¨ãããŽã¯æĒã ãĢ SCO ã¯å
ŦãĢã¯į¤ēããĻãĒããããã§ããã
> äžã¨ããĻ RCU, JFS, NUMA ãĢéĸããé¨åã¨ããã芹ã¯åēãĻãããã§ãIBM å´ãã
> ããĻãããã¤ãŖããã ãŽã¯ããã ãã§ãSysV ãŽãŗãŧãã¯å
ĨãŖãĻãĒãããã¨
> č¨ããŽã¯éŖãããã¨ãĒãã§ãããããã
ãããĒãã¨ã¯ãĒãã¨æããžããOpen Source Initiative ㎠Eric
Raymond ãŽãã¸ãˇã§ãŗãģããŧããŧã¯ããčĒ°ã contribute ãããŽãã
ããã大äēã§ãcontribute ããäēēãŽããŽã§ããŖãĻãSystem V ãŽãŗãŧ
ãããŧãšãæãŖãĻããäēē(SCO)ã§ã¯ãĒãããã¨ããä¸ģåŧĩã§ããã
RCUãŖãĻãäŊã§ãããŖãã
JFS ㎠Journal File System ã§ãããRS6000 ãĢã¤ããĻããĻã1993
åš´ããå§ããĻčĻãæãĢã¯ãããããĒæããããžãããåŊæãŽ
System V ãĢã¯ãããĒããŽã¯å
ĨãŖãĻããžããããããĨãĄãŗããŽåŽŖäŧ
æåĨã¯ããããã§ãããããã RS600 ãŽéģæēããˇãĄãŖã¨ããã¨ã
čĒŋåæĒããĒãŖããã¨ããããžããã
NUMA (non-unifrm memory access) åãŽããĢããããģããĩã§ããã
Eric Raymond ãŽä¸ģåŧĩã¯ãSystem V ãåããããããããããã
ãĒããã§ãã
Uniform Memory Access ãŽå
ąæãĄãĸãĒããĢããããģããĩã¯ãæčŋã¯
SMP ã¨ãããžããã1985 åš´ãĢåēã SMPãSequent Balnace ã¯ã
NS32032 ã ãŖãããŠãĒãããŽåžãSymmetry ã¨ãããã§ãããã¯
80386 ãBalance ã¯ãäŊŋãããã ããŠãSymmetry ã¯äŊŋããĒããĻã
åã大åĻãĢãããŽãĢãé ŧãã ãããĄã§ããŖãĻãæãããĻããžããžã
ãã
> CSRG ã Net/1 ã Net/2 ããžã¨ãã
> ãŋãããĢãããããã¨ããäŧŧã芹ãĢãĒãããããĒããã¨æããŽã§ãããŠãã
> įįąãããŖãĻãããã§ããĒããŽããĒããĒãŠã¨ãæãŖãĻããžããžãã
ã ããããŗãŧããŽčŠąã¯éĸäŋãĒããã¨ãããã¨ãĒãã§ãããIBM ã¨
SCO ãŽåĨį´ãŽåéĄããŗãŧããåéĸã§ããããŠããã¯éĸäŋãããžããã
Raymond ãŽčŠąã¯ããŗãŧããŽčŠąãŽæãããĒããĻãIBM 㨠SCO ãŽåĨį´
ãŽčŠąã¯åēãĻããžããã
http://opensource.jp/sco/sco-vs-ibm.html
Linus ããæåããåĨį´ãŽčŠąã ã¨č¨ãŖãĻãããĒããããããæåŗã ãŖ
ããã ãããã
http://www.zdnet.co.jp/enterprise/0307/09/epn35.html
In article <YAS.03Ju...@kirk.is.tsukuba.ac.jp>, y...@is.tsukuba.ac.jp (Yasushi Shinjo) writes
> ã ããããŗãŧããŽčŠąã¯éĸäŋãĒããã¨ãããã¨ãĒãã§ãããIBM ã¨
> SCO ãŽåĨį´ãŽåéĄããŗãŧããåéĸã§ããããŠããã¯éĸäŋãããžããã
> Raymond ãŽčŠąã¯ããŗãŧããŽčŠąãŽæãããĒããĻãIBM 㨠SCO ãŽåĨį´
> ãŽčŠąã¯åēãĻããžããã
ããļãããããĒãã§ãããããã§ããã ã¨ããããæåĨãč¨ãããĻ
ãããŽã¯IBMããæãĢãããLinuxã ããŖãĻãã¨ãĒãŽããĒ?
訴č¨ãããŽã¯åæã ã¨ã¯æããã ããŠãSCOã¯č˛ ããããŠããĒãã
ã§ããã? åˇ¨éĄãŽčŗ åéããĩãŖããããããŽã¯ééããĒãããã ã
ãŠããĒããĒãŖãĄãããã§ããããIBMãĢ財åãããĄãã? IBM ã財
åããĄãããŽãį°Ąåã§åŽä¸ãããĒæ°ããããã ããŠãããŖã¨ãããŖ
ã¨åŽããããäģãã¨æãŖãĻãããã ãããĒã
ãããã¯æããįĨãŖãĻãããŽã§ããSCOãIBMãĢãŗããŧãããã¨ãããŗãŧãã
åŽã¯BSDįąæĨã ãŖããįŦãããĒããã¨ãčããĻããžããã
--
Tomoaki Akiyama į§åąąãæēæ
mailto:tom...@akiyama.nu
http://www.akiyama.nu/~tom-a/
ãIBMãĢ財åããĻããããããŖããŽã ãã¨ãããĸããĒãšããŽãŗãĄãŗããčĒãã
č¨æļããããžããããå
ããĒããŽã§ãæåžãĢä¸å˛ããã¨ããããĨãĸãŗãšã§ããã
>> äžã¨ããĻ RCU, JFS, NUMA ãĢéĸããé¨åã¨ããã芹ã¯åēãĻãããã§ãIBM å´ãã
>> ããĻãããã¤ãŖããã ãŽã¯ããã ãã§ãSysV ãŽãŗãŧãã¯å
ĨãŖãĻãĒãããã¨
>> č¨ããŽã¯éŖãããã¨ãĒãã§ãããããã
>
> ãããĒãã¨ã¯ãĒãã¨æããžããOpen Source Initiative ㎠Eric
> Raymond ãŽãã¸ãˇã§ãŗãģããŧããŧã¯ããčĒ°ã contribute ãããŽãã
> ããã大äēã§ãcontribute ããäēēãŽããŽã§ããŖãĻãSystem V ãŽãŗãŧ
> ãããŧãšãæãŖãĻããäēē(SCO)ã§ã¯ãĒãããã¨ããä¸ģåŧĩã§ããã
ããŖã¨ãčĻ㯠SysV ãŽãŗãŧããĢæ¸ãčļŗãããããåŊĸã§æŠčŊãįãčžŧãžããĻ
ããããSysVīŧã ãīŧãĢããããŽãåŠį¨ããåŊĸã§æŠčŊãåŽįžãããĻããĻã
SysV ãŽãŗãŧããã¨ã¤ãŖããã§ãããã¨ãããã¨ã§ã¯ãĒããã§ããããã?
čĻã¯ãĒããããŽåŊĸ㧠SysV ãŽãŗãŧããĢäžåããåŊĸãĢãĒãŖãĻããã¨ã
訴ããĢãĒãã¨ãããį§ã¯ããŽããŋãŧãŗããæãã¤ããĒããã§ãã..
> RCUãŖãĻãäŊã§ãããŖãã
Read-Copy-Update ã ããã§ããä¸č¨ãŽããŧã¸ãŋã¤ããžããã
http://lse.sourceforge.net/locking/rcupdate.html
> JFS ㎠Journal File System ã§ãããRS6000 ãĢã¤ããĻããĻã1993
:
> NUMA (non-unifrm memory access) åãŽããĢããããģããĩã§ããã
:
SVR4 ã§ããĢããããģããĩãŧ寞åŋãäēã
ãã¨ãã芹ãčããĻããã¨æãŖããã
ã ãŧããļããĻãã SVR4.2 ãåēãĻãããŽå
ãĢäģåž SVR4.2MP ã§ãŠããŽã¨ã
ãã芹ãåēãĻããã㧠SVR4.2 㨠SVR4.2MP ã¯ä¸čēĢãžãŖããéãã¨ãããããĒ
ãã¨ãčããĻãããĒããããããīŊãã¨æãŖãĻãčĻãããããžãã
ãããĒãã ãŖããŽã§ãJFS ã NUMA ãĒãŠãŽæŠčŊãįãčžŧãã ãŽã¯ SCO ã§ã¯
ãĒãã ããã¨ã¯į§ãæãŖãĻãžããčĻã¯ãäžåããåŊĸã§åŽįžãããĻãããã ããã¨ã
ã§ãåãéĸãããããã°č§Ŗæąēãããã ããŠãåŽã¯ããį°ĄåãĢåãéĸããĒããã¨ãã
MOCHIDA Shuji <moc...@netside.co.jp> writes:
> ãããĒãã ãŖããŽã§ãJFS ã NUMA ãĒãŠãŽæŠčŊãįãčžŧãã ãŽã¯ SCO ã§ã¯
> ãĒãã ããã¨ã¯į§ãæãŖãĻãžããčĻã¯ãäžåããåŊĸã§åŽįžãããĻãããã ããã¨ã
Google 㧠JFS ãæĸãããã
http://www.ccur.co.jp/external/TechSup/page1.html
http://www.linux.or.jp/JF/JFdocs/Filesystems-HOWTO-9.html
ã¨ããããŧã¸ãčĻã¤ãããžããã
SCO ã¯éĸäŋãĒãããã§ã
NUMA ãŖãĻãIBM ã財åããĻæļããĻããŖã Sequent ãæåãŽãããĒæ°ãã
--
ta...@kc5.so-net.ne.jp įĢčą æīŧ éãļč°ˇå¸
In article <3988684...@insigna.ie.u-ryukyu.ac.jp>
ko...@ie.u-ryukyu.ac.jp (Shinji KONO) writes:
> æ˛ŗéįæ˛ģ @ įį大åĻæ
å ąåˇĨåĻã§ãã
> > ã ããããŗãŧããŽčŠąã¯éĸäŋãĒããã¨ãããã¨ãĒãã§ãããIBM ã¨
> > SCO ãŽåĨį´ãŽåéĄããŗãŧããåéĸã§ããããŠããã¯éĸäŋãããžããã
> ããļãããããĒãã§ãããããã§ããã ã¨ããããæåĨãč¨ãããĻ
> ãããŽã¯IBMããæãĢãããLinuxã ããŖãĻãã¨ãĒãŽããĒ?
IBMãUnixį¨ãĢéįēããæčĄããIBMãLinuxãĢčģĸį¨ãããŽãåĨį´ãĢ
éåããĻãããã¨ãã芹ãããĒãã§ããã
> 訴č¨ãããŽã¯åæã ã¨ã¯æããã ããŠãSCOã¯č˛ ããããŠããĒãã
> ã§ããã? åˇ¨éĄãŽčŗ åéããĩãŖããããããŽã¯ééããĒãããã ã
> ãŠããĒããĒãŖãĄãããã§ããããIBMãĢ財åãããĄãã?
ãã¤ã¯ããŊããã財ããã¨ãããŽã¯ãŠãã§ããããã
The Open Group ããApple ã Unix ãŽčŠĻé¨ãéããĒã㧠MacOSX
ã Unix ã¨åäšãŖãĻãããŽã¯ãããããã¨ã訴ããĻããæãããŖã
ããApple ãčĻæšãĢããæšãããã¨æããã ããŠã
In article <bg6e9c$ni$1...@news01dh.so-net.ne.jp>
ta...@kc5.so-net.ne.jp (R4000 2.2) writes:
> SCO ã¯éĸäŋãĒãããã§ã
> NUMA ãŖãĻãIBM ã財åããĻæļããĻããŖã Sequent ãæåãŽãããĒæ°ãã
Sequent ã¯ãNUMA ã§ã¯ãĒããĻ UMA (Uniform Memory Access) ã§ã
æčŋãŽč¨čã§č¨ãæ㎠SMP ã§ããčŠŗããã¯
<YAS.03Ju...@kirk.is.tsukuba.ac.jp> ãčĻãĻä¸ããã
In article <ul8el0a...@pine.yorie.netside.co.jp>
MOCHIDA Shuji <moc...@netside.co.jp> writes:
> > RCUãŖãĻãäŊã§ãããŖãã
> Read-Copy-Update ã ããã§ããä¸č¨ãŽããŧã¸ãŋã¤ããžããã
> http://lse.sourceforge.net/locking/rcupdate.html
ããããSequent ããããŧããĻã§ãĸã§äŊãŖãĻããžããã§ãããŖãīŧ
Atomic Read Lock Memory ã¨ãäŊŋãŖãĻã
Dynix ã¯ãä¸åŋãBSD ä¸ģã§ããžã㧠AT&T ããĒããˇãŗããĒãã¯ãģãĒ
ãŗã¯ãããŖãããæĄäģļäģããˇãŗããĒãã¯ãģãĒãŗã¯ã¨ãããŽãããŖãĻã
bsd 㨠att ã§ãĒãŗã¯å
ãå¤ãã¨ããæŠčŊãéĸįŊããŖãã§ãã
> SVR4 ã§ããĢããããģããĩãŧ寞åŋãäēã
ãã¨ãã芹ãčããĻããã¨æãŖããã
> ã ãŧããļããĻãã SVR4.2 ãåēãĻãããŽå
ãĢäģåž SVR4.2MP ã§ãŠããŽã¨ã
> ãã芹ãåēãĻããã㧠SVR4.2 㨠SVR4.2MP ã¯ä¸čēĢãžãŖããéãã¨ãããããĒ
> ãã¨ãčããĻãããĒããããããīŊãã¨æãŖãĻãčĻãããããžãã
System V ㎠SMP 寞åŋã¯ãįĩåąãSun ãããŖãããããĒãããĒãã
Linux ã¨ã FreeBSD ãŽčŠąãčĻãĻãã¨ãSMP 寞åŋåã¯ããĒãéŖãã
ããĻããããŖãĻããäēēãæŦæĨã§ãŦãĒãŦãĒãããĒãã¨ãããããŽã¯ã§
ããĒããĒãã¨ããå°čąĄã¯ãããžãã10åš´åãĢããĢããšãŦãããŽãĢãŧ
ããĢãäŊãŖãĻãããŽã§ãããäģãŽæčĄã¯ãããĢããšãŦãã寞åŋã ã
čĻãã¨10åš´åããé
ããĻããžããåŽå
¨ãĢããĢããšãŦãã寞åŋãĢãã
ãĢã¯ãå˛čžŧãŋãŦããĢ(slpãĒãã¨ã)ã§į¸äēæé¤ããĻãããããĒãŗãŧ
ãããåŽå
¨ãĢæé¤ããĒãã¨é§įŽãĒãŽã§ãä¸æä¸å¤ãĢã¯ã§ããĒããã
ããŠãããã¤ã¯ããĢãŧããĢãĢã¯ããĻãããĒããĻããŠãĄãã§ãããã
ã ãããŠã
In article <YAS.03Au...@kirk.is.tsukuba.ac.jp>, y...@is.tsukuba.ac.jp (Yasushi Shinjo) writes
> Linux ã¨ã FreeBSD ãŽčŠąãčĻãĻãã¨ãSMP 寞åŋåã¯ããĒãéŖãã
> ããĻããããŖãĻããäēēãæŦæĨã§ãŦãĒãŦãĒãããĒãã¨ãããããŽã¯ã§
> ããĒããĒãã¨ããå°čąĄã¯ãããžãã
ããĒãä¸å¯§ãĢãĢãŧããĢãĒãŊãŧãšãŽæäģåļåžĄãããĒãã¨ã ãã§ããã
ãããĒãŊãŧãšãŽäŊŋãæšãĢåŋããĻæ§ã
ãĒããã¯ãäŊŋãåããĒãã¨ã ã
ã§ãããããã§ããããã ããĒããããĒãããŖãĻæ°ãããžãã...
(ããŖã¨ãããšãąãŧã¸ãĨãŠããĄãĸãĒįŽĄįå¨ãã¯ããžã čĒãã§ãĒããĒ)
> 10åš´åãĢããĢããšãŦãããŽãĢãŧ
> ããĢãäŊãŖãĻãããŽã§ãããäģãŽæčĄã¯ãããĢããšãŦãã寞åŋã ã
> čĻãã¨10åš´åããé
ããĻããžãã
ãããããä¸æšã§ãGUIã¨ãã¯Event driven/Call backã§įĩãžããĻãã
ããã§ããĢããšãŦããã¯ããããäŊŋãããĻãããã§ãããã
> åŽå
¨ãĢããĢããšãŦãã寞åŋãĢãã
> ãĢã¯ãå˛čžŧãŋãŦããĢ(slpãĒãã¨ã)ã§į¸äēæé¤ããĻãããããĒãŗãŧ
> ãããåŽå
¨ãĢæé¤ããĒãã¨é§įŽãĒãŽã§ãä¸æä¸å¤ãĢã¯ã§ããĒããã
> ããŠãããã¤ã¯ããĢãŧããĢãĢã¯ããĻãããĒããĻããŠãĄãã§ãããã
> ã ãããŠã
ãã¤ã¯ããĢãŧããĢãĢããã¨ãĒãŊãŧãšã¸ãŽãĸã¯ãģãšãéåŽã§ãã
ãŽã§å°ãč¨č¨ãæĨŊãĢãĒããžããã
Linux ãæäģŖé
ããĒæããããĻãããŽã§ãããããæ°ãã
ãĒãŧããŗãĒOSãæŦ˛ãããTRON ã¯ããĄããŖã¨ããã
>> Linux ã¨ã FreeBSD ãŽčŠąãčĻãĻãã¨ãSMP 寞åŋåã¯ããĒãéŖãã
>> ããĻããããŖãĻããäēēãæŦæĨã§ãŦãĒãŦãĒãããĒãã¨ãããããŽã¯ã§
>> ããĒããĒãã¨ããå°čąĄã¯ãããžãã
>
> ããĒãä¸å¯§ãĢãĢãŧããĢãĒãŊãŧãšãŽæäģåļåžĄãããĒãã¨ã ãã§ããã
> ãããĒãŊãŧãšãŽäŊŋãæšãĢåŋããĻæ§ã
ãĒããã¯ãäŊŋãåããĒãã¨ã ã
> ã§ãããããã§ããããã ããĒããããĒãããŖãĻæ°ãããžãã...
ãããã°ãįšãĢãããããã¯ãŽæ¤åēæšæŗãįĸēįĢããĻããĒãŊãŧãšãŽ
ããã¯ååžé åēãæąēããĻããããĢæ˛ŋãŖãĻåé¨äŊãæ¸ãæããĻčĄããããĒ
æããŽäŊæĨãã¨æããŽã§ãããå¤äēēæ°ã§ãããĢã¯åããĒãäģäēã§ãããã
> Linux ãæäģŖé
ããĒæããããĻãããŽã§ãããããæ°ãã
> ãĒãŧããŗãĒOSãæŦ˛ãããTRON ã¯ããĄããŖã¨ããã
čŠå¤ããčĄã㨠L4 ã§ããããã
In article <ul8n0eu...@pine.yorie.netside.co.jp>, MOCHIDA Shuji <moc...@netside.co.jp> writes
> ãããã°ãįšãĢãããããã¯ãŽæ¤åēæšæŗãįĸēįĢããĻããĒãŊãŧãšãŽ
> ããã¯ååžé åēãæąēããĻããããĢæ˛ŋãŖãĻåé¨äŊãæ¸ãæããĻčĄããããĒ
> æããŽäŊæĨãã¨æããŽã§ãããå¤äēēæ°ã§ãããĢã¯åããĒãäģäēã§ãããã
Processor ã¨ã Process ID ã¨ãã§é åēãå
ĨãŖãĻãããŽã§ã
ããŽé ãĢååžããã°ãããããã¯ã¯ããĒãã¯ãã§ãã...
> čŠå¤ããčĄã㨠L4 ã§ããããã
http://www.l4ka.org/ ã§ãã?
Windows NTãåēãĻ Operating System ã¯įĩãŖãã¨ãč¨ããããã
æčŋã¯ãLinuxãįĩããããŖãĻé°å˛æ°ããĒããããã§ã¯ãã¤ãžããĒããã
>> 訴č¨ãããŽã¯åæã ã¨ã¯æããã ããŠãSCOã¯č˛ ããããŠããĒãã
>> ã§ããã? åˇ¨éĄãŽčŗ åéããĩãŖããããããŽã¯ééããĒãããã ã
>> ãŠããĒããĒãŖãĄãããã§ããããIBMãĢ財åãããĄãã?
IBM ã¯ãããä¸įž¤ãŽåĸåã Linux ãŽæŽåãéģæĸãããã¨ããĻãããã¨ã
č¨ãåēããĻããŋããã§ããIBM ãč˛ ããã SCO ãæšå¤ããå´ãŽ
ã¤ãĄãŧã¸ããŠããĒããã¨ãããã¨ãčããĻãããæšãããããã§ãã
IBM ãŽč˛ĸįŽã¨ããé¨åããĒããŖãˇãŖãĢãĢãĒãããããŽãĒãŽã
åäēēã¨ããĻãĒãããããŽãĒãŽãįĨããĒãã§ãããå
ˇäŊįãĢãå
¨é¨ã§
ããã ãããŖãĻį¤ēããŽã¯į°ĄåãĒã¯ãã§ããã? å
ãĢãĒãŖããŗãŧããã
åŽéãĢå
ĨãããŗãŧãããįįŽĄįããĻãĒãã¨ã¯ã¨ããĻãæããĒããã
> ãã¤ã¯ããŊããã財ããã¨ãããŽã¯ãŠãã§ããããã
ãããĒãŖããåį¨ UNIX ã UNIX éĸãīŧSysV éĸãīŧããĻãSysV ã
čŦãåģããããŽã§ã¯ãĒãã§ãããããããããĻããUnix ããĄãˇãŽ
ãŋããĢããĻããéŖä¸ãŽåå
Ĩãåãä¸ãããã¨ããããŋããŗããĻã ææãŽ
äēč¨ãåŽįžãããã¨ã
ãã¤ã¯ããŊãããĢã¯ãããžããĄãĒãããĒãããã§ããã
> ããŠãããã¤ã¯ããĢãŧããĢãĢã¯ããĻãããĒããĻããŠãĄãã§ãããã
> ã ãããŠã
æ§é įãĢãã¤ã¯ããĢãŧããĢãŋãããĢãĒãŖãĻããã°ãĸããĒãˇãã¯ã§ããããã¨
ãããã¨ã§ããããSunOS5 ã¯ãããĒãŖãĻãã¨ã ããļåãĢ Sun ãč¨ãŖãĻãžããã
ãããUnix ãããĒãããããŠãããžããããFollowup-To:
fj.comp.parallel ãĢããžããã
In article <3988708...@insigna.ie.u-ryukyu.ac.jp>
ko...@ie.u-ryukyu.ac.jp (Shinji KONO) writes:
> æ˛ŗéįæ˛ģ @ įį大åĻæ
å ąåˇĨåĻã§ãã
> ãããããä¸æšã§ãGUIã¨ãã¯Event driven/Call backã§įĩãžããĻãã
> ããã§ããĢããšãŦããã¯ããããäŊŋãããĻãããã§ãããã
ã¤ããŗãé§åãŽããĢããšãŦããã¯æįĸēãĢåããĻčãããã¨ãã芹ã
ãããžããæŦĄãŽčŠąã¯ãéĸįŊãã§ããã
J.K.Ousterhout: "Why Threads Are A Bad Idea (for most
purposes)", Invited Talk at the 1996 USENIX Technical
Conference (January 25, 1996).
http://home.pacbell.net/ouster/
http://home.pacbell.net/ouster/threads.pdf
ãšãŠã¤ããŽīŧããŧã¸įŽãŽåŗãå°čąĄįã§ãããããĒæãã
------------------------------------------------------------
What's Wrong With Threads?
casual all programmers wizards
>>==========================================>
<------- Visual Basic programmers -------->
<----- C programmers ------->
<-- C++ programmers -->
<-->
Threads programmers
Too hard for most programmers to use.
Even for experts, development is painful.
------------------------------------------------------------
į§ãããšãŦãããŽã¨ãšãšããŧãã¨č¨ãŖãĻããããŽã§ãããããæåž
ãŽæåžã¯ãããã§æŦåŊãĢããŖãĻãããŽãã¯åãããĒãã§ããããã¯
ééãŖãĻãããã¨ãããŽã¯ãã ããļæ°ãäģããããĢã¯ãĒããžãããã
åĻįãããĢãŦããŧããåēãããã¨ãã¨ããããåãããã°ãŠã ãčŋãŖ
ãĻã¯æĨããã ãããŠãæŦåŊãĢããã§å¤§ä¸å¤Ģã¨ã¯äŋč¨ŧã§ããžããããĒ
ããæĒãããããŠãããĄã¨ãč¨ããĒãã
īŧ¯īŧĢã¨ãããŽã¯ãããããĒããããŋãŗãããŖãĻããããĢããŖãĻãã
ãŽã¯ãīŧ¯īŧĢã¨ãããããã§ããããšãŋãšãŦãŧãã¨ããã
ããã§ãããĢããšãŦãããĢæãããŽããã¤ããŗãé§åããã°ãŠããŗ
ã°ããšãŠã¤ããŽ9ããŧã¸įŽãããã
------------------------------------------------------------
Event-Driven Programming
One execution stream: no CPU concurrency.
Register interest in events Event (callbacks).
Event loop waits for events, invokes handlers.
No preemption of event handlers.
Handlers generally short-lived.
------------------------------------------------------------
> ããĒãä¸å¯§ãĢãĢãŧããĢãĒãŊãŧãšãŽæäģåļåžĄãããĒãã¨ã ãã§ããã
> ãããĒãŊãŧãšãŽäŊŋãæšãĢåŋããĻæ§ã
ãĒããã¯ãäŊŋãåããĒãã¨ã ã
> ã§ãããããã§ããããã ããĒããããĒãããŖãĻæ°ãããžãã...
ãĢãŧããĢãããšãŦããæčããĒãã§æ¸ããæãåĸãããĻãããã°ã
ããã ã¨æããžãã
In article <YAS.03Au...@kirk.is.tsukuba.ac.jp>, y...@is.tsukuba.ac.jp (Yasushi Shinjo) writes
> ã¤ããŗãé§åãŽããĢããšãŦããã¯æįĸēãĢåããĻčãããã¨ãã芹ã
> ãããžããæŦĄãŽčŠąã¯ãéĸįŊãã§ããã
Call back ã¯ã¤ããŗãé§åãŽã¤ãŗãŋãã§ãŧãšãĒãã ããŠãåŽã¯åŋ
ã
ããĢããšãŦããã§ããåŋ
čĻãããã¨æããžããããã§ãĒããŽã¯ãã
ãŧãŖãĻããã ãã
ãã ãäģ㎠pthread API ã¯ãããããã ã¨æããžãããĄããŖã¨äŊ
ãŦããĢéãããĢãŧããĢãåãã§ãåŽã¯ lock API ãäŊãŦããĢéããĒ
ã¨ãããåéĄãĒãŽã ã¨æããããŽããããŽãŦããĢãä¸ããĻããã¨ã
> ãĢãŧããĢãããšãŦããæčããĒãã§æ¸ããæãåĸãããĻãããã°ã
> ããã ã¨æããžãã
ã¨ãããã¨ãĢãĒããŽã ã¨æããžãããã ã!
ãŠã¤ããŠãĒåŧãŗåēã
ãĒãã¸ã§ã¯ãæå
lock ãŽæ§é ãŽé čŊ
ãŋãããĒææŗã§ã¯ãåæéĸäŋãŽæŊ蹥åēĻãŽãŦããĢãä¸ããĻããšãŦãã
æčããĒãã§æ¸ãããããĢãããã¨ã¯ãåŽã¯åēæĨãĒããã ã¨æããž
ããã
ãããããŠãããããŖãĻããã¨ãåã¯ããã°ãŠã å¤æįãĒãĸãããŧ
ããããĒãã¨æããã ããŠãæ°åãããããæãã§ãã?
> ãããUnix ãããĒãããããŠãããžããããFollowup-To:
> fj.comp.parallel ãĢããžããã
ãããããŽã¯ãŠãããĒããå
ãŽããĨãŧãšã°ãĢãŧãããå°éãã
æšãããã¨æãã
>> ãããã°ãįšãĢãããããã¯ãŽæ¤åēæšæŗãįĸēįĢããĻããĒãŊãŧãšãŽ
>> ããã¯ååžé åēãæąēããĻããããĢæ˛ŋãŖãĻåé¨äŊãæ¸ãæããĻčĄããããĒ
>> æããŽäŊæĨãã¨æããŽã§ãããå¤äēēæ°ã§ãããĢã¯åããĒãäģäēã§ãããã
>
> Processor ã¨ã Process ID ã¨ãã§é åēãå
ĨãŖãĻãããŽã§ã
> ããŽé ãĢååžããã°ãããããã¯ã¯ããĒãã¯ãã§ãã...
ãĢãŧããĢå
ãŽãĒãŊãŧãšč§Ŗæžåž
ãæ¸ãããĢã¯ãĒãŊãŧãšãį´°ããåäŊã§
ããã¯ãããããĢãĒããŽã§ãč¤æ°ãŽåŽčĄåäŊã§æŧãããĒãŊãŧãšãŽé įĒ
ééããã¨ãããããã¯ããã¨ãããã¨ãŽã¤ãããĒãã§ãã..
ãProcessor ã¨ã Process ID ã¨ãã§é åēãã¨ãããŽã¯ããããããĒããŽã§ãã..
ã˛ã¨ã¤ãŽãĒãŊãŧãšãããŋãå ´åã¨ãããã¨ã§ãããã?
ããã¨ããã¤ã¯ããĢãŧããĢãĒãããã¯ãããĒãŊãŧãšãŽæ°ãå°ãĒãã
ããã¯ããč§Ŗæžãžã§ãŽæéãįããŽã§ããã¯ãå¤æ°ååžããåŋ
čĻããĒããã¨
ãããã¨ãĒãã§ãããã?
>> ãĢãŧããĢãããšãŦããæčããĒãã§æ¸ããæãåĸãããĻãããã°ã
>> ããã ã¨æããžãã
>
> ã¨ãããã¨ãĢãĒããŽã ã¨æããžãããã ã!
>
> ãŠã¤ããŠãĒåŧãŗåēã
> ãĒãã¸ã§ã¯ãæå
> lock ãŽæ§é ãŽé čŊ
>
> ãŋãããĒææŗã§ã¯ãåæéĸäŋãŽæŊ蹥åēĻãŽãŦããĢãä¸ããĻããšãŦãã
> æčããĒãã§æ¸ãããããĢãããã¨ã¯ãåŽã¯åēæĨãĒããã ã¨æããž
> ããã
ãĒããģãŠã§ãã
> ãããããŠãããããŖãĻããã¨ãåã¯ããã°ãŠã å¤æįãĒãĸãããŧ
> ããããĒãã¨æããã ããŠãæ°åãããããæãã§ãã?
īŧ æ°åãããããĒãã§ãã
ãĒããģãŠã§ããã§ãããããŖãĻãããžããããã°æšæŗãįĸēįĢãããä¸ã§ãã¨ãã
æĄäģļãäģããžããã?
In article <ul8ispe...@pine.yorie.netside.co.jp>, MOCHIDA Shuji <moc...@netside.co.jp> writes
> ãĢãŧããĢå
ãŽãĒãŊãŧãšč§Ŗæžåž
ãæ¸ãããĢã¯ãĒãŊãŧãšãį´°ããåäŊã§
> ããã¯ãããããĢãĒããŽã§ãč¤æ°ãŽåŽčĄåäŊã§æŧãããĒãŊãŧãšãŽé įĒ
> ééããã¨ãããããã¯ããã¨ãããã¨ãŽã¤ãããĒãã§ãã..
ãããããã¯ã¯ããã¯ãŽåž
ãĄåããé åēãĢãĢãŧããã§ããã¨čĩˇãã
ãŽã§ããĒããããŽé åēãå°å
ĨããĻãããã¯ããä¸ģäŊããããã¯ãã
č¤æ°ãŽå
ąæčŗæēãããŽé åēã§ããã¯ãããã¨ãĢããéŋãããã¨ãã§
ããžãã
ããŧãŋããŧãšãŋãããĢé åēãå
ĨãŖãĻãĒãã¨įĩæ§éĸåã§ããé åēãã
ãããã¨æãã¨insert/deleteãĢæéããããããĢãĒãŖãããããã
ã§ããIDãå
ĨããĄãããŽãæčŋã§ã¯ä¸ģæĩãããĒãããĒã
> ãProcessor ã¨ã Process ID ã¨ãã§é åēãã¨ãããŽã¯ããããããĒããŽã§ãã..
> ã˛ã¨ã¤ãŽãĒãŊãŧãšãããŋãå ´åã¨ãããã¨ã§ãããã?
é åēã¯ãĒãã§ãč¯ãã§ãã
äžãã°CPUã ãŖããCPUãĢé åēãäģããã°č¯ãã ãã§ãã ããããã
ããĒãŖãĻããã¯ãã§ãããĒãŽã§SMPéĸéŖãŽããã¯ã§ãããããã¯ãã
ãŽã¯æŽéã¯ãĒãã§ããã
ããäģĨå¤ã§ããĢãŧããĢãŽčŗæēã¯é åēãã¤ããĻãããŽãæŽéãĒãŽã§ã
ãĢãŧããĢå
ã§ãããããã¯ãŖãĻãŽã¯ããžãåéĄãĢãĒããĒãããããĒ
ãããĒãã
> ããã¨ããã¤ã¯ããĢãŧããĢãĒãããã¯ãããĒãŊãŧãšãŽæ°ãå°ãĒãã
> ããã¯ããč§Ŗæžãžã§ãŽæéãįããŽã§ããã¯ãå¤æ°ååžããåŋ
čĻããĒããã¨
> ãããã¨ãĒãã§ãããã?
å¤æ°ããã¯ãããŖãĻãŽããããã¯ã¨ãĸãŗããã¯ãæˇˇãããŖãĻãã¨ã
ã¨ãéä¸ã§ã¨ãŠãŧããã¨ããĢæĨĩããĻéĸåãĒãã¨ãĢãĒããŽã§ãæŽéã
ãĒãã¨æãã(ã§ããĒãã.... ãĸã¯ãģãšãĢãĻãŗãŋãŋãããĒãŽãå¤ã
ããããããããŽã¯ã¨ãŠãŧããĻãå
ãĢæģãããããĒããã...)
ãããããããããã¯æ¤åēãĒããĻéãããĻãĢãŧããĢå
ã§čĩ°ããããŽã¯
įĄįã§ãããããĒãŽã§ããããããã¯ããĒããããĢäŊããŽãæŽéã ã¨
æãã
In article <3988719...@insigna.ie.u-ryukyu.ac.jp>
ko...@ie.u-ryukyu.ac.jp (Shinji KONO) writes:
> æ˛ŗéįæ˛ģ @ įį大åĻæ
å ąåˇĨåĻã§ãã
> Call back ã¯ã¤ããŗãé§åãŽã¤ãŗãŋãã§ãŧãšãĒãã ããŠãåŽã¯åŋ
ã
> ããĢããšãŦããã§ããåŋ
čĻãããã¨æããžããããã§ãĒããŽã¯ãã
> ãŧãŖãĻããã ãã
ä¸ĻčĄãĒãã¸ã§ã¯ãæåãŋãããĢãīŧãĒãã¸ã§ã¯ãīŧãšãŦãããĢããĻã
ã¤ããŗãã¯ãšãŦãããåĨŊããĒæãĢåããĢčĄããããĢããã°ããŠãã§
ããããã
> ã¨ãããã¨ãĢãĒããŽã ã¨æããžãããã ã!
> ãŠã¤ããŠãĒåŧãŗåēã
> ãĒãã¸ã§ã¯ãæå
> lock ãŽæ§é ãŽé čŊ
> ãŋãããĒææŗã§ã¯ãåæéĸäŋãŽæŊ蹥åēĻãŽãŦããĢãä¸ããĻããšãŦãã
> æčããĒãã§æ¸ãããããĢãããã¨ã¯ãåŽã¯åēæĨãĒããã ã¨æããž
> ããã
ãˇãŗã°ãĢãšãŦãããĢããĻåæããæ¸ããĒããã¨åæãŽæŊ蹥åããã
ãã¯ããĄããŖã¨éãããĒãã
> ãããããŠãããããŖãĻããã¨ãåã¯ããã°ãŠã å¤æįãĒãĸãããŧ
> ããããĒãã¨æããã ããŠãæ°åãããããæãã§ãã?
ããã°ãŠã å¤æããããĄããŖã¨ã¤ãĄãŧã¸ãã¤ãããžããã
ä¸Ļåããã°ãŠã ãŽčĒåįæãĒãã¤ãĄãŧã¸ã§ãããã ããŠã
In article <ul8k79y...@pine.yorie.netside.co.jp>
MOCHIDA Shuji <moc...@netside.co.jp> writes:
> æį°īŧ NETside ã§ãã
> IBM ã¯ãããä¸įž¤ãŽåĸåã Linux ãŽæŽåãéģæĸãããã¨ããĻãããã¨ã
> č¨ãåēããĻããŋããã§ããIBM ãč˛ ããã SCO ãæšå¤ããå´ãŽ
> ã¤ãĄãŧã¸ããŠããĒããã¨ãããã¨ãčããĻãããæšãããããã§ãã
ä¸įž¤ãŽåĸåãŽä¸ãĢãã¤ã¯ããŊããã¯å
ĨãŖãĻããĻãããããããĒããã¨ãIBM ã¨
ãã¤ã¯ããŊããã¯ã.NET ã¨ã Web ãĩãŧããšãĒãŠã§éŖæēããĻããããäģ˛ããã
ãããĢčĻãããã ããŠã
čäŊ樊ãĢéĸããĻã¯ãæŦĄãŽ cnet ãŽč¨äēãéĸįŊãã§ããã
------------------------------------------------------------
http://www.japan.cnet.com/news/ent/story/0,2000047623,20060273,00.htm
ã¨ãŗãŋãŧããŠã¤ãēīŧ
LãģããŧããĢãēīŧSCOãŽä¸ģåŧĩã¯ãããããåįļã
2003åš´8æ1æĨ(é) 16æ51å
------------------------------------------------------------
čĻåēãã¯åēæŋįã§ãããä¸čēĢ㎠Linus ãŽã¤ãŗãŋããĨãŧãŽįããéĸ
įŊãã§ãã
----------------------------------------------------------------------
Torvaldsã¯ãããã¯ãéåįčäŊ樊ããŽåéĄãŽã˛ã¨ã¤ã§ãäŊæĨãŽįĩæįãžãã
éåäŊãŽãåã
ãŽé¨åãĢéĸããčäŊ樊ã¨ãå
¨äŊãĢéĸããčäŊ樊ã¨ã¯åĨãŽããŽã
ã¨č¨ãã
ããIBMãããã¤ããŽé¨åãŽãŗãŧãæ¸ããã¨ããã°ãããŽé¨åãŽãŗãŧããĢã¤ã
ãĻãŽčäŊ樊ã¯IBMãĢãããã ãããããŽåãIBMãŽãŗãŧããLinuxãŽãĒããĢčĻã
ãããŽãĒãããã¨ããããä¸čĄéããããŖããã ãŖãã¨ããĻããLinuxãŽãĒã
ãĢããäģĨä¸ãSCOãĢã¯ããŽãŗãŧããĢã¤ããĻäŊãŽæ¨ŠåŠããĒããSCOãéåįčäŊ樊
ãäŋæããĻãããŽã¯UNIXã§ãLinuxãŽãĒããŽããįšåŽãŽãŗãŧãã§ã¯ãĒãããã ã
ã¨ãTorvaldsã¯čŋ°ãšãã
----------------------------------------------------------------------
ãããĢ寞ããĻSCOãŽä¸ģåŧĩã¯ãSCOã¨IBMãŽåĨį´ã§ãUnix ãŽãæ´žįįŠ
īŧderivative worksīŧããå
Ŧéãããã¨ãįĻããĻããã¨ã
įĻæĸããĻããĻãããããæåšãã¨ãã芹ããããããŠããžã§ãæ´žį
įŠã§ããŠããããįŦįĢããããŽãã¨ãã芹ããããžããīŧã¤ãŽãˇãš
ãã ã§åãããŽã¯ãããŽæįšã§ããæ´žįįŠã¨ã¯č¨ããĒãã¨æããã
ããŠãã
> > ãã¤ã¯ããŊããã財ããã¨ãããŽã¯ãŠãã§ããããã
> ãããĒãŖããåį¨ UNIX ã UNIX éĸãīŧSysV éĸãīŧããĻãSysV ã
> čŦãåģããããŽã§ã¯ãĒãã§ãããããããããĻããUnix ããĄãˇãŽ
> ãŋããĢããĻããéŖä¸ãŽåå
Ĩãåãä¸ãããã¨ããããŋããŗããĻã ææãŽ
> äēč¨ãåŽįžãããã¨ã
ãŠãããäēč¨ãĒãŽããæåŗãããããããžããã
Unix ããĄãˇãŽãŋããĢããĻããéŖä¸ã¨ãããŽã¯ãå
ˇäŊįãĢčĒ°ã§ããīŧ
In article <3988721...@insigna.ie.u-ryukyu.ac.jp>
ko...@ie.u-ryukyu.ac.jp (Shinji KONO) writes:
> æ˛ŗéįæ˛ģ @ įį大åĻæ
å ąåˇĨåĻã§ãã
> ãããããã¯ã¯ããã¯ãŽåž
ãĄåããé åēãĢãĢãŧããã§ããã¨čĩˇãã
> ãŽã§ããĒããããŽé åēãå°å
ĨããĻãããã¯ããä¸ģäŊããããã¯ãã
> č¤æ°ãŽå
ąæčŗæēãããŽé åēã§ããã¯ãããã¨ãĢããéŋãããã¨ãã§
> ããžãã
æŦĄãŽãããĒå ´åããŠãããã°ãããããã¯ããããããã§ããããã
Task1: /usr/local/share/emacs/etc ã¨æ¤į´ĸããã
Task2: cwd ã /usr/local/share/emacs/etc ã§ã..
/../../../.. ã¨æ¤į´ĸããĻããã
(cwd ã¨ãããŽã¯ãcurrent working directory ãŽæåŗãcd ã§å¤ã
ãããŽã)
ããŖãŦã¯ããĒãããã¯ããĒããæ¤į´ĸããĻããã¨ãéä¸ã§ãļã¤ããŖãĻ
ãããããã¯ãĢãĒããžããīŧããã¯ããĒãã¨ãæ¤į´ĸãŽéä¸ã§æ¸ãæ
ããããããããŽã§ãžããããã§ããīŧ
æŦįŠãŽãˇãšãã (Unix, Linux, BSD)ã¯ãŠãããĻãããã§ããããã
ãžãããæŦåŊãĢãããããã¯ãĢãĒãŖããããĒãã§ããããã
> äžãã°CPUã ãŖããCPUãĢé åēãäģããã°č¯ãã ãã§ãã ããããã
> ããĒãŖãĻããã¯ãã§ãããĒãŽã§SMPéĸéŖãŽããã¯ã§ãããããã¯ãã
> ãŽã¯æŽéã¯ãĒãã§ããã
æåããããã¯ããšãããŽãå
¨é¨ãããŖãĻãããĢãčŗæēãŽįĒå°ã§ãŊãŧ
ããããã¨ããæšæŗãäŊŋãŖããã¨ããããžããįĒåˇã¯ãčŗæēãŽæšãĢ
ã¤ããĒãã¨ãCPUããããã¯ããšãŦãããŽįĒåˇã¨ãããŽã¯ãã ããĻãã
> å¤æ°ããã¯ãããŖãĻãŽããããã¯ã¨ãĸãŗããã¯ãæˇˇãããŖãĻãã¨ã
> ã¨ãéä¸ã§ã¨ãŠãŧããã¨ããĢæĨĩããĻéĸåãĒãã¨ãĢãĒããŽã§ãæŽéã
> ãĒãã¨æãã(ã§ããĒãã.... ãĸã¯ãģãšãĢãĻãŗãŋãŋãããĒãŽãå¤ã
> ããããããããŽã¯ã¨ãŠãŧããĻãå
ãĢæģãããããĒããã...)
ããã¯ãããĻããæãĢãåĸããĻãããã§ãŧãēã¨æ¸ãŖãĻãããã§ãŧãē
ãŽīŧã¤ãŽãã§ãŧãēãĢåããããŽããīŧãã§ãŧãēãģããã¯ãããŽįšæŽ
ãŽããŽã§ãæåžãĢããŋãŗã¨ããã¯ãč§Ŗé¤ããã¨ãããŽãããããã
ãžããããŠãŗãļã¯ãˇã§ãŗãŽåŽčŖ
ã§ããĸãŗããã¯ãžã§æ¸čžŧãŋããĒãã§ã
īŧãã§ãŧãēãģããã¯ãäŊŋãŖãĻããã¨éæŦĄåå¯čŊãã¨ãã芹ãŋããã
ãããããã¯ã¯ãīŧãã§ãŧãēãģããã¯ã§ãčĩˇãããã ããŠãããŠãŗ
ãļã¯ãˇã§ãŗãããŖãããĢã¤ããŖãĻããããããããã¯ãããããä¸
åēĻãĸããŧãããĻæåããįĸãį´ãã°ãããŽã§ãéŊåãããã¨ããã
ã¨ã§ãã
In article <YAS.03Au...@kirk.is.tsukuba.ac.jp>, y...@is.tsukuba.ac.jp (Yasushi Shinjo) writes
> æŦĄãŽãããĒå ´åããŠãããã°ãããããã¯ããããããã§ããããã
> Task1: /usr/local/share/emacs/etc ã¨æ¤į´ĸããã
> Task2: cwd ã /usr/local/share/emacs/etc ã§ã..
> /../../../.. ã¨æ¤į´ĸããĻããã
.. ãlockããæãĢããroot ããlockãããã§ãããroot ãã
lock ããã°ãããã§é åēãäģããããããŖãŦã¯ããĒå
ãŽã¨ãŗããĒ
ãĢãé åēããĒãã¨ãžããããŠãã§ããããã¯lockãããããæŽéã¯
æ¤į´ĸã¯lockããĒãã§ãå¤æ´ããããŖãŦã¯ããĒã ããĢlock ããã¨æ
ããAtomic lock ãĢããããã§ããã
> æåããããã¯ããšãããŽãå
¨é¨ãããŖãĻãããĢãčŗæēãŽįĒå°ã§ãŊãŧ
> ããããã¨ããæšæŗãäŊŋãŖããã¨ããããžããįĒåˇã¯ãčŗæēãŽæšãĢ
> ã¤ããĒãã¨ãCPUããããã¯ããšãŦãããŽįĒåˇã¨ãããŽã¯ãã ããĻãã
įĩæįãĢčŗæēãĢįĒåˇãã¤ãããŽã¨åãã§ããã°ããŠãŖãĄã§ãã ãã
ãããļã§ãã
č¤æ°ãŽčŗæēãåž
ããĒãã¨ãããããã¯ããĒãããããˇãšãã ãŗãŧãĢ
ãŽå ´åã¯åä¸ãŽlockã§ããžããã ãã§ãč¯ããŋããã§ãããã§ãč¤
æ°ãŽlockãåŋ
čĻã¨ããå ´åã¯ãé
åãĢå
ĨããĻé
åãŽå
é ããlockã
ãĻãããŖãĻããåŽčŖ
ã ãŖãã¨æãã
In article <3988737...@insigna.ie.u-ryukyu.ac.jp>
ko...@ie.u-ryukyu.ac.jp (Shinji KONO) writes:
> æ˛ŗéįæ˛ģ @ įį大åĻæ
å ąåˇĨåĻã§ãã
> > æŦĄãŽãããĒå ´åããŠãããã°ãããããã¯ããããããã§ããããã
> > Task1: /usr/local/share/emacs/etc ã¨æ¤į´ĸããã
> > Task2: cwd ã /usr/local/share/emacs/etc ã§ã..
> > /../../../.. ã¨æ¤į´ĸããĻããã
> .. ãlockããæãĢããroot ããlockãããã§ãããroot ãã
> lock ããã°ãããã§é åēãäģãããã
ããã¯ãLinux ãŽåŽčŖ
ãŽčŠąã§ããããŠãŽããĄã¤ãĢãŽãŠãŽããããã
ããåēãĻãããĒãæããĻä¸ããã
Unix ãŽããĄã¤ãĢãģãˇãšãã ã¯ãæ¨æ§é ã¨ããŖãĻããåŗå¯ãĢã¯ãã.ã
ã¨ãã..ãããããŽã§ãæ¨æ§é ãããĒããŖãããããŽã§ã
> ããŖãŦã¯ããĒå
ãŽã¨ãŗããĒ
> ãĢãé åēããĒãã¨ãžããããŠãã§ããããã¯lockãããããæŽéã¯
> æ¤į´ĸã¯lockããĒãã§ãå¤æ´ããããŖãŦã¯ããĒã ããĢlock ããã¨æ
> ããAtomic lock ãĢããããã§ããã
æ¤į´ĸã§ããã¯ã¯ã¯ãããĒããĻãããã¨ãã㨠shared lock (read
lock) ãĢãããŽããĒãã
æ¤į´ĸ(namei)ã¨ããæįļããUnix ãŽãˇãšãã ãŗãŧãĢã§ãããããĒæ
ããåŧã°ããĻããžããopne(O_RONLY), stat(), ãĒãŠãĒãŠãããĄã¤
ãĢåãæã¤ããŽå
¨é¨ãã§ããˇãšãã ãŗãŧãĢåäŊã§ãŽ atomic
operation ã¯äŊãããããããĒãã¨ãäģãŽãããĢãããŽã¯ãããã¨
čĒįļãĒäŊãã ã¨æããžãã
open() ã state() ã atomic ãĢããã¨ãããŽã¯ãäģæ§ã§æąēãžãŖãĻ
ãããŽã§ãããŽé¨åã ãčĻãã°æĸãĢ atomic operation ã¯åŽįžãã
ãĻãããŽã§ãå
é¨ãŽäŊãã¯čĻãĒããã¨ãĢããã°ãæ˛ŗéãããŽããŖãã
ããã¨ã¯æĸãĢåŽįžãããĻããã¨ãč¨ããžãã
NFS ã§ã¯ãlookup() ã§ååč§Ŗæąēããæ㨠read()/write() ããæ
ã§ãŋã¤ããŗã°ããããĻãããŽã§ãopen() ã§ããĻããread() ããã
ããĄã¤ãĢããĒããĻå¤ąæããã¨ãããã¨ããããžããããŽæãŽä¸æ´å
ãč¨ąåŽšããĻããããĒãããžããããããã¯ãããã§ãããã§ããããã
> č¤æ°ãŽčŗæēãåž
ããĒãã¨ãããããã¯ããĒãããããˇãšãã ãŗãŧãĢ
> ãŽå ´åã¯åä¸ãŽlockã§ããžããã ãã§ãč¯ããŋããã§ããã
ãããããŽã¯ãgiant lock ã¨ããŖãĻãīŧã¤ãŽæšæŗã§ããSolborne
ã ãŖãããĒããSunOS (SolarisäģĨå) ã SMP 寞åŋãĢãããŽãĢãã
ãŽæšæŗãäŊŋãŖãĻããã¨æããžããLinux ããFreeBSD ããåŊåã¯
åéĄã¨ããĻã¯ããŽæšæŗãĒãã§ãããã
Unix ã¯ãįšãĢãããĄã¤ãĢīŧŠīŧīŧ¯ãå¤ããããĒãˇãšãã ã§ã¯ããĢãŧ
ããĢãŽä¸ãŽ CPU æļč˛ģã大ãããŽã§ãgiant lock ã§ã¯ SMP ãĢããĻ
ãæ§čŊãä¸ãããžãããã§ãããã¯ãŽåäŊãį´°ããããĒãã¨ãããĒ
ãã¨ãããã¨ã§ãLinux ã FreeBSD ããé åŧĩãŖãĻããã¨ã
In article <YAS.03Au...@kirk.is.tsukuba.ac.jp>
y...@is.tsukuba.ac.jp writes:
>NFS ã§ã¯ãlookup() ã§ååč§Ŗæąēããæ㨠read()/write() ããæ
>ã§ãŋã¤ããŗã°ããããĻãããŽã§ãopen() ã§ããĻããread() ããã
>ããĄã¤ãĢããĒããĻå¤ąæããã¨ãããã¨ããããžããããŽæãŽä¸æ´å
>ãč¨ąåŽšããĻããããĒãããžããããããã¯ãããã§ãããã§ããããã
NFSã¯įļæ
ãæããĒããŽããģãŧãĢãšãã¤ãŗããĒãŽã§ãããlockã¯æŦčŗĒį
ãĢįļæ
ãæã¤ãã¨ãåæã¨ãããŽããNFSãŽéŖããæãrpc.lockd,
rpc.statdã¨ãããŧãĸãŗã§ããĄã¤ãĢãŽįļæ
ãįŽĄįãããããĢãĒãŖã
ãŽã§ãããserverå´ãĢããclientå´ãĢãããįĒįļããˇãŗãčŊãĄãæ
ã¨ããããããlockdã§įŽĄįãããŽããstatdã§įŽĄįãããŽãã¨ã
(OSãĢããŖãĻã¯įæšããåŽčŖ
ãããĻããĒããã¨ããįšãĢåį¨OSã ã¨
å¤ãīŧãNFSã ã¨åéĄã¯äŊãč§ŖæąēããĻããĒãã
>> č¤æ°ãŽčŗæēãåž
ããĒãã¨ãããããã¯ããĒãããããˇãšãã ãŗãŧãĢ
>> ãŽå ´åã¯åä¸ãŽlockã§ããžããã ãã§ãč¯ããŋããã§ããã
>
>ãããããŽã¯ãgiant lock ã¨ããŖãĻãīŧã¤ãŽæšæŗã§ããSolborne
>ã ãŖãããĒããSunOS (SolarisäģĨå) ã SMP 寞åŋãĢãããŽãĢãã
>ãŽæšæŗãäŊŋãŖãĻããã¨æããžããLinux ããFreeBSD ããåŊåã¯
>åéĄã¨ããĻã¯ããŽæšæŗãĒãã§ãããã
åŊåã§ã¯ãĒããįžå¨ãåŽåŽįã¯giant lockã§ããéįēįã¯giant lock
æ˛æģ
ãįŽæ¨ãĢé åŧĩãŖãĻããžãããŠã
>Unix ã¯ãįšãĢãããĄã¤ãĢīŧŠīŧīŧ¯ãå¤ããããĒãˇãšãã ã§ã¯ããĢãŧ
>ããĢãŽä¸ãŽ CPU æļč˛ģã大ãããŽã§ãgiant lock ã§ã¯ SMP ãĢããĻ
>ãæ§čŊãä¸ãããžãããã§ãããã¯ãŽåäŊãį´°ããããĒãã¨ãããĒ
>ãã¨ãããã¨ã§ãLinux ã FreeBSD ããé åŧĩãŖãĻããã¨ã
ããã§ããSMPãĢããĻįšãĢ16PEã¨ãããäģĨä¸ãĢããĻãäŊãããŠãŗãļã¯ãˇã§ãŗ
æ§čŊãä¸ãããĒããĻãWebBenchã§LinuxãWindowsNTãĢ大æãåĢããĻ
ããžããžãããããã§giant lockæ˛æģ
ãįŽæããĻé åŧĩãŖãĻããæä¸
ãĒãŽã§ãããåéĄåąąįŠãŋįļæ
ã§ããåéĄã¯å¤§ããīŧį¨ŽéĄæãŖãĻã
1. giant lockãæŊ°ããĻãå°ããlockãĢåå˛ããĻããããæ´ģãããããĢ
kernelå
ãšãŦãããĢåĻįãä¸ĻčĄããããããããĢããĒããã°æåŗãįĄãã
2. ãããããããããã¯ãčĩˇãããĻãããĒãŧãēããčĩˇãããããããŽã¯
lockãŽå¯žčąĄã¨ãĒãčŗæēãč¤æ°æãŖãĻãlockãæããå´ãlockãåŋ
čĻã¨
ããčŗæēããžãĄãžãĄãĒãã¨ãã¤ãžãčŗæēãA,B,C,Dã¨æãŖãĻãlock
ãæããå´ãa,b,cã¨æãæãa,b,cãįA,B,C,Dãåŋ
čĻã¨ãããĒã
A->B->C->DãŽé ãĢlockãæããã°åéĄįĄããŽã ããįžåŽãĢã¯aã¯A,B,C;
bã¯D;cã¯B,C,Dã ãåŋ
čĻã¨ããåĻįéãæãŖãĻãããããããģãšīŊ
ãšãŦãããäģãŽåĻįéããŠãŽčŗæēãåŋ
čĻã¨ãããæįĨãããåã
åĨŊããĒé ãĢlockæããĻãįļæŗã§ããããããã¯ããĒããããĢlock
ãæãããŽã¯ä¸å¯čŊã
3. ä¸įĒåéĄãĒãŽã¯ãäēēãä¸č¨a,b,cå
ąãĢåä¸äēēįŠãäŊãŖãĻããã°ã
ãããããã¯ãŽåąéēæ§ãĢæ°äģãå¯čŊæ§ãæãããįžåŽãĢã¯č¤æ°
īŧå¤æ°īŧãŽäēēéããåã
åĨŊããĢīŧå¯ãŖãĻãããŖãĻīŧéįēããĻãã
įžįļã ã¨ãäģãŽéįēč
ããŠãŽčŗæēãåŋ
čĻã¨ããĻããŠãŽé ã§lock
æããĻããã¨ãĻãææĄã§ããĒãã
ã¨ãããã¨ã§ããFreeBSD-currentããKSE(kernel schedule entity),
SMP-NG(No Goodã§ã¯ãĒãNext Generation)ãĒãããããŧã¸ãããĻãã
åããããŠå
é¨ã§į´°ããlockãæã¤ãããĢå¤ããŖãĻããĻãįĩæ§äŊããŽã
éĸåãĢãĒãŖãĻããžãããæ§čŊåä¸ãŽãããĢã¯ãlockæããĻãæéã
å°ãĒããããŽããįšãĢSMPãŽå ´åéčĻã ã¨ã¯æããŽã§ããã
kernelå
ãšãŦãããåĻäŊãĢããžãåå˛ããããé åŧĩãããããmicro
kernelä¸ã§ãOSãĩãŧããããĢãã§čĩ°ãããããĢãããŽããOSč¨č¨ã¯æĨŊ
ã ã¨æããŽã§ãããåŽéãĢå´åãåŋ
čĻãĒãŽã¯įĩåąããã¤ãšããŠã¤ãã
æããæŗĨčãäŊæĨãĒãã§ãããããããĒč¨ŗã§GNU(hurd)ã¯åŋãŽéĢããĢã
ãããããããĒããĒãé˛ãžãĒããããããhurdãŽåãŽæ§ãĢOSãĩãŧãã
ããĢãã§åããããĢãĒãŖããã§ããããīŧ
--
ä¸æååŋīŧ įĨæ¸ <mailto:k...@kobe1995.net>
NAKAMURA Kazushi@KOBE <http://kobe1995.jp/>
- Be Free(BSD), or Die...
>> IBM ã¯ãããä¸įž¤ãŽåĸåã Linux ãŽæŽåãéģæĸãããã¨ããĻãããã¨ã
>> č¨ãåēããĻããŋããã§ããIBM ãč˛ ããã SCO ãæšå¤ããå´ãŽ
> ä¸įž¤ãŽåĸåãŽä¸ãĢãã¤ã¯ããŊããã¯å ĨãŖãĻããĻãããããããĒããã¨ãIBM ã¨
> ãã¤ã¯ããŊããã¯ã.NET ã¨ã Web ãĩãŧããšãĒãŠã§éŖæēããĻããããäģ˛ããã
> ãããĢčĻãããã ããŠã
ã¤ãŧããåŊäēč
īŧIBMīŧããSysV ãŗãŧããå
Ĩããå
ĨããĒããŽäēåŽéĸäŋã
ã¯ãŖããããããã¨ããå§ŋåĸäģĨåãĢãčæ¯ã ãŽå¤§åąã ãŽãããããĒãã¨ã
ãŗãĄãŗãããã¨ãããŽã¯į§ã¯éåæãããĒãã§ãã
īŧ ãžã IBM ãããĢããŽã§ãé¨įŊ˛ãĢããŖãĻã¯äģäēēäēãĒãŽããįĨããžãããã
> LãģããŧããĢãēīŧSCOãŽä¸ģåŧĩã¯ãããããåįļã
ããã
> ãĻãŽčäŊ樊ã¯IBMãĢãããã ãããããŽåãIBMãŽãŗãŧããLinuxãŽãĒããĢčĻã
> ãããŽãĒãããã¨ããããä¸čĄéããããŖããã ãŖãã¨ããĻããLinuxãŽãĒã
> ãĢããäģĨä¸ãSCOãĢã¯ããŽãŗãŧããĢã¤ããĻäŊãŽæ¨ŠåŠããĒããSCOãéåįčäŊ樊
> ãäŋæããĻãããŽã¯UNIXã§ãLinuxãŽãĒããŽããįšåŽãŽãŗãŧãã§ã¯ãĒãããã ã
ãģãã¨ãĢãããĒ芹ãéããã§ããã? ãããĒããĒãã§ããŗããŧããŧãšã
ãæžéĄãŖãĻãã¨ãĢãĒããžããã?
īŧ ãžãŧãããŽäēēã¯æããããã§ãããŠã
> įŠã§ããŠããããįŦįĢããããŽãã¨ãã芹ããããžããīŧã¤ãŽãˇãš
> ãã ã§åãããŽã¯ãããŽæįšã§ããæ´žįįŠã¨ã¯č¨ããĒãã¨æããã
> ããŠãã
ãããĒãã§ãããã ãããIBM ããåéĄãĢãĒãŖãĻãæŠčŊãŽéĸéŖãŽãŗãŧãã¯
ãåĨãĢ SysV åæãããĒããĻãåãããå
ã
įŦįĢããĻéįēãããŽã AIX ãĢã
įĩãŋčžŧãã ãã ãã¨č¨ããã°ããã§æ¸ã芹ãŽã¯ãã
IBM ãããŽæ°ãĢãĒãã°į°ĄåãĢįäģããã¨ã ã¨æããã§ãããã
> Unix ããĄãˇãŽãŋããĢããĻããéŖä¸ã¨ãããŽã¯ãå ˇäŊįãĢčĒ°ã§ããīŧ
į樊æãŖãĻãäēēãįžå¨ã§ã¯ SCOã
> 2. ãããããããããã¯ãčĩˇãããĻãããĒãŧãēããčĩˇãããããããŽã¯
> lockãŽå¯žčąĄã¨ãĒãčŗæēãč¤æ°æãŖãĻãlockãæããå´ãlockãåŋ
čĻã¨
> ããčŗæēããžãĄãžãĄãĒãã¨ãã¤ãžãčŗæēãA,B,C,Dã¨æãŖãĻãlock
> ãæããå´ãa,b,cã¨æãæãa,b,cãįA,B,C,Dãåŋ
čĻã¨ãããĒã
> A->B->C->DãŽé ãĢlockãæããã°åéĄįĄããŽã ããįžåŽãĢã¯aã¯A,B,C;
> bã¯D;cã¯B,C,Dã ãåŋ
čĻã¨ããåĻįéãæãŖãĻãããããããģãšīŊ
> ãšãŦãããäģãŽåĻįéããŠãŽčŗæēãåŋ
čĻã¨ãããæįĨãããåã
> åĨŊããĒé ãĢlockæããĻãįļæŗã§ããããããã¯ããĒããããĢlock
> ãæãããŽã¯ä¸å¯čŊã
A,B,C,D ãŽãä¸é¨äŊŋããĒããĻããé åēããåŽãã°ãããããã¯ã¯ããžããã
éåããĢīŧäžãã° D æŧããĻãã B ãĢããīŧããã¨ãããããã¯ããžãã
ã§ãæ˛ŗéãããŽ
| From: ko...@ie.u-ryukyu.ac.jp (Shinji KONO)
| Subject: Re: SMP / Multi Thread
| Newsgroups: fj.unix
| Date: 4 Aug 2003 05:36:42 GMT
| Message-ID: <3988721...@insigna.ie.u-ryukyu.ac.jp>
> ãããããã¯ã¯ããã¯ãŽåž
ãĄåããé åēãĢãĢãŧããã§ããã¨čĩˇãã
> ãŽã§ããĒããããŽé åēãå°å
ĨããĻãããã¯ããä¸ģäŊããããã¯ãã
> č¤æ°ãŽå
ąæčŗæēãããŽé åēã§ããã¯ãããã¨ãĢããéŋãããã¨ãã§
> ããžãã
> ã§ããIDãå ĨããĄãããŽãæčŋã§ã¯ä¸ģæĩãããĒãããĒã
ã¨ãããã¨ã§ããã
čĻã¯ãčŗæēå
¨é¨ãĢéããŽé åēãã¤ããĻãäŊŋãããå´ã§ãæŧãããčŗæēä¸čĻ§ãã
æ¸Ąãã¨ãåčŗæēãŽé åēãŽéããĢããã¯ããããĻæģãŖãĻããéĸæ°ã¨ã
ããã¨ãããã¨ãããã¨ãĒãã§ãããããã
> kernelå
ãšãŦãããåĻäŊãĢããžãåå˛ããããé åŧĩãããããmicro
> kernelä¸ã§ãOSãĩãŧããããĢãã§čĩ°ãããããĢãããŽããOSč¨č¨ã¯æĨŊ
> ã ã¨æããŽã§ãããåŽéãĢå´åãåŋ
čĻãĒãŽã¯įĩåąããã¤ãšããŠã¤ãã
ãã¤ã¯ããĢãŧããĢãĢããĻãįŽĄįããčŗæēãæ¸ããäģŖãããĢãããã¯ã¯ gaint ã§
æ¸ãžãããã¨ããčãæšãããã§ããããããŖãĄãŽæšããˇãŗããĢããįĨããĒãã
Amoeba ã¯åã
ãŽãĢãŧããĢã¯ãˇãŗã°ãĢãšãŦããã§ããããã
MOCHIDA Shuji wrote:
> æį°īŧ NETside ã§ãã
> A,B,C,D ãŽãä¸é¨äŊŋããĒããĻããé åēããåŽãã°ãããããã¯ã¯ããžããã
> čĻã¯ãčŗæēå
¨é¨ãĢéããŽé åēãã¤ããĻãäŊŋãããå´ã§ãæŧãããčŗæēä¸čĻ§ãã
> æ¸Ąãã¨ãåčŗæēãŽé åēãŽéããĢããã¯ããããĻæģãŖãĻããéĸæ°ã¨ã
> ããã¨ãããã¨ãããã¨ãĒãã§ãããããã
ãããããã¯ã¯ããĒããĒããžãããããã¯ããĻããæéãåŋ
čĻ
æäŊéãããéˇããĒãŖãĻããžããžããã
æ°ãĩã¤ã¯ãĢãŽspinwaitã§ããã¯ãæåãããããĒčŗæēãã
ãĒããŽãĒãããã§ããžããĒãã§ããããããã¨ãã°ãĄãĸãĒãããã¯
ãĒãŠãŽãããĢåžãããĒããã°block/sleepãããããĒčŗæēã
æˇˇããŖãĻããã¨ãããŠãŧããŗãšããĄãŋãĄãŋãĢãĒããŽã§ã¯īŧ
ãĒããæį§æ¸įãĢč¨ãã¨ããããĒãŖãĻããžãã
ãģããã¯ããé åēãåŽãã°ãã˛ã¨ã¤ãã¤æéããããĻããã¯ããĻ
ãããŖãĻããããããã¯ããžããã
ãģatomicãĒæįļãã§č¤æ°ãŽčŗæēãããã¯ã§ãããĒããåŋ
čĻãĒčŗæēã
ãä¸æ°ãĢãããããĢãããã¨ã§ãããããã¯ãåéŋã§ããžãã
ãããŽå ´åã¯čŗæēãŽé įĒã¯æ°ãĢããĒããĻč¯ãã
ãģčŗæēR1ãåžãããĒããĻãããã¯ããæãããã¯æ¸ãŋãŽäģãŽčŗæēã
ãä¸æĻéæžããĻãæåããčŗæēããã¯ãretryãããĒãã°ã
ããããããã¯ã¯čĩˇãããžãããããŽå ´åãčŗæēãŽé åēã¯æ°ãĢããĒ
ãããĻããã
éŊč¤æį´ãsai...@ist.osaka-u.ac.jp
In article <bgqnb3$12d$1...@newsserv.ics.es.osaka-u.ac.jp>, SAITOH akinori <sai...@ist.osaka-u.ac.jp> writes
> ãããããã¯ã¯ããĒããĒããžãããããã¯ããĻããæéãåŋ
čĻ
> æäŊéãããéˇããĒãŖãĻããžããžããã
kernel å
é¨ã§ããã¯ãéˇãåž
ããããįļæŗãŖãĻåŽã¯ããĒãããã
ããĒãã§ãããã? (giant lockãŋãããĒãŽã¯ã˛ãŠãã¨æãããŠ
(åãããããĢã¯įč§Ŗã§ããžã)) Linux ã¯ãããžããĄãããŽããã
čĻéãč¯ãäŊãŖãĻãããããĢã¯čĻããĒããŖããããžããĢlock/unlock
ãįš°ãčŋããĻãããŗãŧããããããå
ĨãŖãĻããæãã§ããã
ãããã ãã ãã¨čĒãã§ããã¨ããĢæãŖãč¨æļããããžãã
> æ°ãĩã¤ã¯ãĢãŽspinwaitã§ããã¯ãæåãããããĒčŗæēãã
> ãĒããŽãĒãããã§ããžããĒãã§ããããããã¨ãã°ãĄãĸãĒãããã¯
> ãĒãŠãŽãããĢåžãããĒããã°block/sleepãããããĒčŗæēã
> æˇˇããŖãĻããã¨ãããŠãŧããŗãšããĄãŋãĄãŋãĢãĒããŽã§ã¯īŧ
ããããããĒãã ããŠãkernel å
ã§lockã§åž
ã¤åŋ
čĻã¯ãĒãã§ãã
ããlock ãŽå¯žčąĄãswap outãããĻããããããĒãéŋãããããĒã
ããįĨããĒãããŠã
ãããããããŠãŧããŗãšãčĻæąãããããĒãĸããĒãąãŧãˇã§ãŗã¯ãĄãĸ
ãĒãé ģįšãĢååžč§ŖæžãĒããĻããĄãã ãã ãããããããããããĻã
įžåŽã¯ããããããã¨ãæčããĻãĒããĸããĒãąãŧãˇã§ãŗããĒãã¨ã
éãåãããŽãOSãŽåŊšå˛ãŖãĻãã¨ãĒãŽã?! X Window System ã¨ã
WWW BrowserãWWW Server ãĒããĻãããŽå
¸åã ããŽãĒãã
> ãĒããæį§æ¸įãĢč¨ãã¨ããããĒãŖãĻããžãã
(a)
> ãģããã¯ããé åēãåŽãã°ãã˛ã¨ã¤ãã¤æéããããĻããã¯ããĻ
> ãããŖãĻããããããã¯ããžããã
(b)
> ãģatomicãĒæįļãã§č¤æ°ãŽčŗæēãããã¯ã§ãããĒããåŋ
čĻãĒčŗæēã
> ãä¸æ°ãĢãããããĢãããã¨ã§ãããããã¯ãåéŋã§ããžãã
> ãããŽå ´åã¯čŗæēãŽé įĒã¯æ°ãĢããĒããĻč¯ãã
(c)
> ãģčŗæēR1ãåžãããĒããĻãããã¯ããæãããã¯æ¸ãŋãŽäģãŽčŗæēã
> ãä¸æĻéæžããĻãæåããčŗæēããã¯ãretryãããĒãã°ã
> ããããããã¯ã¯čĩˇãããžãããããŽå ´åãčŗæēãŽé åēã¯æ°ãĢããĒ
> ãããĻããã
(大å¤č¯ãã§ããžãã(æĄ))
ãŖãĻãã¨ã¯ãOSå ¨äŊãŽæ§æãčĻãĻã
ãĸã¯ãģãšãããčŗæēãŽįĩãŋã¨ãswapãããĒãlockãŽå¯žčąĄ
ãæéåį¨æããĻãããã atomic ãĢlockãããŖãĻãŽãåšįč¯ãã
ããĒæ°ãããžããããã¯ãå˛ãã¨ãmicro kernel įãĒæããĢãĒã
ãžãããããããããããĸã¯ãģãšãããčŗæēãŽįĩãŋãã¯ãOSå
é¨ãŽ
serverãĢ寞åŋããããããĒãŽã§ãįŠļæĨĩãĢ㯠micro kernel ãŽæšãSMP
ã§ã¯ãããŠãŧããŗãšãåēããŖãĻãã¨ãĢãĒãã¯ããĒãã ã...
(ãããããããĒãĢããžãã¯ããããŽã ãããĒ)
(c) ã¯ãŠã¤ãããã¯ããã...
(æã¯ãããããč°čĢãããĻãã㨠mohta æ°ãč§ŖčĒŦããĻãããããã ã...)
>> čĻã¯ãčŗæēå
¨é¨ãĢéããŽé åēãã¤ããĻãäŊŋãããå´ã§ãæŧãããčŗæēä¸čĻ§ãã
>> æ¸Ąãã¨ãåčŗæēãŽé åēãŽéããĢããã¯ããããĻæģãŖãĻããéĸæ°ã¨ã
> ãããããã¯ã¯ããĒããĒããžãããããã¯ããĻããæéãåŋ
čĻ
> æäŊéãããéˇããĒãŖãĻããžããžããã
ããŖã¨ãã§ããčĒåãĢåŋ
čĻãĒčŗæēããããã¯ããĒãããããã¯ããããŽãĢ
ã¤ããĻã¯é åēãåŽããĒãã¨ãããĒããŽã§ãäŊč¨ãĒããã¯ããããĒããã°
ãããããĒæ°ããããŽã§ãã..
> æ°ãĩã¤ã¯ãĢãŽspinwaitã§ããã¯ãæåãããããĒčŗæēãã
> ãĒããŽãĒãããã§ããžããĒãã§ããããããã¨ãã°ãĄãĸãĒãããã¯
> ãĒãŠãŽãããĢåžãããĒããã°block/sleepãããããĒčŗæēã
> æˇˇããŖãĻããã¨ãããŠãŧããŗãšããĄãŋãĄãŋãĢãĒããŽã§ã¯īŧ
ããã§ãã.. ããã¯ããããããĻæåããåčŠĻčĄããčŗæēãåĨæąã
ããã°ãããŽã§ããããã
> ãĒããæį§æ¸įãĢč¨ãã¨ããããĒãŖãĻããžãã
> ãģããã¯ããé åēãåŽãã°ãã˛ã¨ã¤ãã¤æéããããĻããã¯ããĻ
> ãããŖãĻããããããã¯ããžããã
> ãģatomicãĒæįļãã§č¤æ°ãŽčŗæēãããã¯ã§ãããĒããåŋ
čĻãĒčŗæēã
> ãä¸æ°ãĢãããããĢãããã¨ã§ãããããã¯ãåéŋã§ããžãã
> ãããŽå ´åã¯čŗæēãŽé įĒã¯æ°ãĢããĒããĻč¯ãã
> ãģčŗæēR1ãåžãããĒããĻãããã¯ããæãããã¯æ¸ãŋãŽäģãŽčŗæēã
> ãä¸æĻéæžããĻãæåããčŗæēããã¯ãretryãããĒãã°ã
> ããããããã¯ã¯čĩˇãããžãããããŽå ´åãčŗæēãŽé åēã¯æ°ãĢããĒ
> ãããĻããã
2 įĒįŽãŽãã¤ã¯ããatomicãĒæįļããã¨ãããŽããããĒããĄ giant lock ãĻ
ãã¨ãĢã¯ãĒããĒããŽã§ãããã?
3 įĒįŽãŽãã¤ã¯ãããã¯ãŽå¤ąæãĢãããĒãŧããŧããããŽįĩąč¨åãŖãĻ
æ§čŊããĨãŧããŗã°ãããŽã大å¤ããã
ãŠãããããĢããĻããåžããããã¯ãŽåäŊãå¤æ´ããĻããĨãŧããŗã°
ã§ãããããĒãæŊ蹥åããã¤ãŗãŋãŧãã§ãŧãšãããã¨ããã§ãããã
ãåŽįĒãã¨ãããã㎠OS ã¯ããžãããŖãĻããã¨ãããããã§ãããã?
In article <ul8llu6...@pine.yorie.netside.co.jp>, MOCHIDA Shuji <moc...@netside.co.jp> writes
> 2 įĒįŽãŽãã¤ã¯ããatomicãĒæįļããã¨ãããŽããããĒããĄ giant lock ãĻ
> ãã¨ãĢã¯ãĒããĒããŽã§ãããã?
giant lock ã¯ãããļããkernelå
¨äŊã§lockããå¯žčąĄãä¸ã¤ããįĄã
ã¨ãããããŽãĒããããĒãããĒã
atomic lock ã¯ãč¤æ°ããŖãĻč¯ããã§ãããä¸ã¤ãŽtransactionã
lock ã§ãããŽã¯ããã ä¸ã¤ã¨ããããŽã§ããã
> ãŠãããããĢããĻããåžããããã¯ãŽåäŊãå¤æ´ããĻããĨãŧããŗã°
> ã§ãããããĒãæŊ蹥åããã¤ãŗãŋãŧãã§ãŧãšãããã¨ããã§ãããã
ããŽå¤æ´ã¯ãå ¨äŊãĢåãļãããã§... ãĒããĒããã
> ãåŽįĒãã¨ãããã㎠OS ã¯ããžãããŖãĻããã¨ãããããã§ãããã?
ã¨ããããã¨åŧãåēããããŽã Main Frame ãĒãã ã... æŦåŊãĢ
éããã ããĒãã ã...
Performance įãĢã¯Solaris? RPC ãĒãChourus?
MOCHIDA Shuji wrote:
> æį°īŧ NETside ã§ãã
> ããŖã¨ãã§ããčĒåãĢåŋ
čĻãĒčŗæēããããã¯ããĒãããããã¯ããããŽãĢ
> ã¤ããĻã¯é åēãåŽããĒãã¨ãããĒããŽã§ãäŊč¨ãĒããã¯ããããĒããã°
> ãããããĒæ°ããããŽã§ãã..
é åēãåŽãäģĨä¸ãīŧæéįãĢīŧäŊåãĢããã¯ããã§ããīŧīŧīŧ
ãã¨ãã°ã
1.ãããã¤ãšãããã¯ãã
2.ãããã¤ãšãĢ寞ããĻããããæäŊãã
3.ããĄãĸãĒã¨ãĒãĸãååžããĻããã¯ãã
4.ããĄãĸãĒã¨ããã¤ãšã¨ä¸ĄæšãĢãĸã¯ãģãšãã
ã¨ããåĻįã§ãããĄãĸãĒã¯ããã¤ãšãããå
ãĢããã¯ãããã¨ã
ã¨ãããĢãŧãĢãããŖãããŠããĒããžãīŧ
2.ãŽæŽĩéã§äŊŋããããĒã
ãĄãĸãĒãæŧãããĻããåŋ
čĻããããžããããããããããããã¯
ããĻããæéãåŋ
čĻæäŊéããéˇããĒãŖãĻããžããã¨ããäž
ã§ããã
éŊč¤æį´ãsai...@ist.osaka-u.ac.jp
> é åēãåŽãäģĨä¸ãīŧæéįãĢīŧäŊåãĢããã¯ããã§ããīŧīŧīŧ
ããã¯ããããããžãã
> ãã¨ãã°ã
> 1.ãããã¤ãšãããã¯ãã
:
> ãĄãĸãĒãæŧãããĻããåŋ
čĻããããžããããããããããããã¯
> ããĻããæéãåŋ
čĻæäŊéããéˇããĒãŖãĻããžããã¨ããäž
> ã§ããã
äēæŗãããåž
æéãäŊãąãŋãéããããĒãŽãããŖãããããĢé åēäģããĻã¯
ããããã¨ãããã¨ã§ãããã
ããã¨ããäŧŧããããĒåž
æéã§ããåžã
ãĢããĻãã ãįĄããčŗæēãæ´įãããŽã¯
éŖãããĻãé åēã¯åŊšãĢįĢããĒããã¨ãããã¨ãĒãŽã§ãããã...
ããŽå ´åã寞įã¯
>>> ãģčŗæēR1ãåžãããĒããĻãããã¯ããæãããã¯æ¸ãŋãŽäģãŽčŗæēã
>>> ãä¸æĻéæžããĻãæåããčŗæēããã¯ãretryãããĒãã°ã
ããŽæšæŗãããĒãã¨ãããã¨ãĢãĒããŽã§ãããã?