Re: very large ram disk problems -- swapping, caching, and why tmpfs and not ext2 or reiserfs

Subject: Re: very large ram disk problems -- swapping, caching, and why tmpfs and not ext2 or reiserfs
From: Andy Green <andy@xxxxxxxxxxx>
Date: Tue, 10 Oct 2006 14:11:37 +0100
In-reply-to: <000801c6e6d9$18a1b3a0$6600a8c0@charm>
References: <000801c6e6d9$18a1b3a0$6600a8c0@charm>
Reply-to: For users of Fedora Core releases <fedora-list@xxxxxxxxxx>
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.0.7) Gecko/20060913 Fedora/1.5.0.7-1.fc6 Thunderbird/1.5.0.7 Mnenhy/0.7.4.666

Matthew Kirk wrote:

1.  When I fill my ext2 or reiserfs ram disk (but not tmpfs) to the 1 GB
point, the system complains that it has insufficient memory, kills some


Monitor the kernel allocation situation with

slabtop

see what bulges at the seams before it blows chunks, maybe it can give aclue.


-Andy

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References:
- very large ram disk problems -- swapping, caching, and why tmpfs and not ext2 or reiserfs
  - From: Matthew Kirk