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From: Manfred Spraul <manfred@colorfullife.com>
To: John Bucy <bucy@gloop.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: nvidia and rmap (again)
Date: Thu, 22 Jul 2004 23:00:11 +0200	[thread overview]
Message-ID: <41002ADB.6000408@colorfullife.com> (raw)

John wrote:

>I don't quite know how to divine the right info out of slabinfo;
>I've attached it below.
>
If you search for a leak then you'd have to check the first number in 
each row: the number of active objects. Just look at the first row: it 
documents the fields in the following rows.
If a number is huge and constantly increasing, then there is would be a 
leak. Typically the inode, dentry and buffer_head caches are large, the 
rest are small.
But: slab manages only small objects. I assume that nvidia allocates 
pages with alloc_pages() and then plays with the page flags. This is the 
layer below slab, you must look at /proc/meminfo to detect leaks.

--
    Manfred


             reply	other threads:[~2004-07-22 20:59 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-07-22 21:00 Manfred Spraul [this message]
  -- strict thread matches above, loose matches on Subject: below --
2004-07-22 17:54 nvidia and rmap (again) John Bucy
2004-07-22 18:08 ` Dave Jones

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