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Re: Very aggressive memory reclaim

To: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
Subject: Re: Very aggressive memory reclaim
From: John Lepikhin <johnlepikhin@xxxxxxxxx>
Date: Tue, 29 Mar 2011 11:33:32 +0400
Cc: Minchan Kim <minchan.kim@xxxxxxxxx>, Dave Chinner <david@xxxxxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, xfs@xxxxxxxxxxx, linux-mm@xxxxxxxxx
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2011/3/29 KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>:

> If my remember is correct, 2.6.38 is included Mel's anti agressive
> reclaim patch. And original report seems to be using 2.6.37.x.
>
> John, can you try 2.6.38?

I'll ask my boss about it. Unfortunately we found opposite issue with
memory management + XFS (100M of inodes) on 2.6.38: some objects in
xfs_inode and dentry slabs are seems to be never cleared (at least
without "sync && echo 2 >.../drop_caches"). But this is not a
production machine working 24x7, so we don't care about it right now.

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