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Date: Sun, 14 Oct 2012 13:53:55 -0700 (PDT)
From: Nat <nat.lu...@gmail.com>
To: mongodb-user@googlegroups.com
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Subject: Re: Can "journalCommitInterval" parameter help to improve IO
 performance?
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*journalCommitInterval is more to do with the consistency of the data in 
case of power loss or crash. Setting it to lower value helps improve the 
throughput if you use getLastError with j : true. You should also consult *
www.mongodb.org/display/DOCS/Journaling+Administration+Notes.

On Sunday, October 14, 2012 6:43:23 AM UTC-7, golangnewbie wrote:
>
> The default value  is 100 and the value range for it is 2 - 300.
> Is value 300 better performance than 100 while the reminding conditions 
> are the same ??
> What is the size of journal buffer policy? thanks.
>

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<em style=3D"font-style: normal; color: rgb(0, 0, 0); font-family: arial, s=
ans-serif; font-size: small; line-height: 12.800000190734863px; ">journalCo=
mmitInterval is more to do with the consistency of the data in case of powe=
r loss or crash. Setting it to lower value helps improve the throughput if =
you use getLastError with j : true. You should also consult&nbsp;</em><font=
 color=3D"#000000" face=3D"arial, sans-serif" size=3D"2"><span style=3D"lin=
e-height: 12.800000190734863px;">www.mongodb.org/display/DOCS/Journaling+Ad=
ministration+Notes.</span></font><br><br>On Sunday, October 14, 2012 6:43:2=
3 AM UTC-7, golangnewbie wrote:<blockquote class=3D"gmail_quote" style=3D"m=
argin: 0;margin-left: 0.8ex;border-left: 1px #ccc solid;padding-left: 1ex;"=
><font size=3D"4">The default value &nbsp;is 100 and the value range for it=
 is 2 - 300.</font><div><font size=3D"4">Is value 300 better performance th=
an 100 while the reminding conditions are the same ??</font></div><div><fon=
t size=3D"4">What is the size of journal buffer policy? thanks.</font></div=
></blockquote>
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