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To: gentoo-performance@g.o
From: MAL <mal@...>
Subject: Re: tmpfs Questions
Date: Mon, 12 May 2003 14:09:34 +0100
Jesse Jacobs wrote:
> I've read about a deadlock condition.
> What would constitute a oversive tmpfs?
> I thought anything unable to be allocated would be paged out to swap.

No, if you run out of tmpfs, that's it.. you're out of disk space.. it 
wont use swap to emulate disk space.

> What would be the max size of /var/tmp?

well, your memory capacity... but if you filled it up, your system would 
have no memory to execute code (ie. compile).

The default, half your RAM, is sensible.

> ie. when building openoffice would ram(512) + 4GB swap suffice?

using tmpfs as /var/tmp isn't a good plan... having more memory freely 
available for gcc to use will result in faster compilation.  the temp 
files are only going to be makefiles and binaries, as gcc -pipe means no 
temporary compilation files are used.

Unless your machine has 4GB of ram, I wouldn't use tmpfs for storage. 
Not to mention that tmpfs needs to be mounted on /dev/shm for rpc calls too.

MAL


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Replies:
Re: tmpfs Questions
-- Stephan Feder
References:
tmpfs Questions
-- Jesse Jacobs
Re: tmpfs Questions
-- MAL
Re: tmpfs Questions
-- Jesse Jacobs
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Updated Jun 17, 2009

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