From: Chase Venters <chase.venters@clientec.com>
To: "scientica (GMail)" <scientica@gmail.com>
Cc: Con Kolivas <kernel@kolivas.org>,
ck@vds.kolivas.org, linux-kernel@vger.kernel.org,
linux-scsi@vger.kernel.org
Subject: Re: scsi cmd slab leak? (Was Re: [ck] Anyone been having OOM killer problems lately?)
Date: Thu, 19 Jan 2006 12:22:08 -0600 [thread overview]
Message-ID: <200601191222.30441.chase.venters@clientec.com> (raw)
In-Reply-To: <43CFD6D6.2040700@gmail.com>
On Thursday 19 January 2006 12:13, scientica (GMail) wrote:
> Just out of curiosity, what's the slab? and what is the expected size
> of it? I just checked mine and it seems to eat some 304596 kB
> (2.6.14-ck4, soon 68d uptime). The only problems I've had recently is
> firefox crashing more than it should (but it could simply be me having
> a billion or so windows and tabs open, and it's the
> mozilla-firefox-bin-1.5-r2 from portage which is masked ~amd64, so
> it's probably just buggy - it dies with a segfault after beeing stuck
> at 100% CPU for a while, cant see any OOM-messages anywhere), other
> than that I've been able to both emerge stuff (nice'd though),
> download stuff and burn backups DVD's with out problems -
> simultaneously - and the system was still responsive :)
The slab layer in the kernel is an algorithm that attempts to reserve a sane
amount of memory for a given highly-used data structure in the kernel. By
using the slab layer to keep memory reserved and ready, performance-critical
sections of the kernel code (say, code that receives a packet) doesn't have
to stop and succeed an allocation before continuing.
Cheers,
Chase
prev parent reply other threads:[~2006-01-19 18:22 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200601181951.16708.chase.venters@clientec.com>
[not found] ` <200601190113.32153.chase.venters@clientec.com>
[not found] ` <200601191849.45002.kernel@kolivas.org>
2006-01-19 9:15 ` scsi cmd slab leak? (Was Re: [ck] Anyone been having OOM killer problems lately?) Chase Venters
2006-01-19 9:18 ` Con Kolivas
2006-01-19 9:34 ` scsi cmd slab leak? (Was " Chase Venters
2006-01-19 9:34 ` scsi cmd slab leak? (Was Re: [ck] " Chase Venters
2006-01-19 18:13 ` scientica (GMail)
2006-01-19 18:22 ` Chase Venters [this message]
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