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Random832  
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 More options Dec 12 2006, 7:13 pm
Newsgroups: comp.lang.c
From: Random832 <ran...@random.yi.org>
Date: 13 Dec 2006 00:13:59 GMT
Local: Tues, Dec 12 2006 7:13 pm
Subject: Re: [OT]Re: malloc
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2006-12-12 <1165956252.845272.153...@j44g2000cwa.googlegroups.com>,

goose wrote:

> Barry Schwarz wrote:

> <snipped>

>> or the operating system terminate it.  On a typical desk top system,
>> the first umpteen calls will succeed and all subsequent calls will
>> fail.  Since malloc fails gracefully (by returning NULL), these

> Not *all* typical desktops perform the same; ISTR that FreeBSD
> will happily overcommit knowing that all the memory (virtual + real)
> will never ever be needed at the same time. When all processes
> *do* attempt to run concurrently

Um... run concurrently? you mean as opposed to being in swap? Because
that's where the "virtual" part normally comes in.
> the OS picks a process and kills
> it, so all malloc calls *always* return a pointer to memory.

> I further seem to recall that this was tunable with a FreeBSD
> kernel knob. If my memory serves me correctly, the concensus
> on clc the last time this came up was that such an implementation
> could not be considered conforming ...

> Or else all of the conversation that I remember happened on a
> different newsgroup :-) (My memory really isn't what it used to be).

> goose,


 
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