From: Brian Tinsley <btinsley@emageon.com>
To: William Lee Irwin III <wli@holomorphy.com>
Cc: Andrew Morton <akpm@digeo.com>, Chris Wood <cwood@xmission.com>,
linux-kernel@vger.kernel.org
Subject: Re: 2.4.20, .text.lock.swap cpu usage? (ibm x440)
Date: Thu, 09 Jan 2003 18:44:10 -0600 [thread overview]
Message-ID: <3E1E175A.1050109@emageon.com> (raw)
In-Reply-To: 20030110002548.GG23814@holomorphy.com
>
>
>Either pollwait tables (invisible in 2.4 and 2.5), kernel stacks of
>threads (which don't get pae_pgd's and are hence invisible in 2.4
>and 2.5), or pagecache, with a much higher likelihood of pagecache.
>
The "kernel stacks of threads" may have some bearing on my incarnation
of this problem. We have several heavily threaded Java applications
running at the time the live-locks occur. At our most problematic site,
one application has a bug that can cause hundreds of timer threads (I
mean like 800 or so!) to be "accidentally" created. This site is
scheduled for an upgrade either tonight or tomorrow, so I will leave the
system as it is and see if I can still cause the live-lock to manifest
itself after the upgrade.
--
-[========================]-
-[ Brian Tinsley ]-
-[ Chief Systems Engineer ]-
-[ Emageon ]-
-[========================]-
next prev parent reply other threads:[~2003-01-10 0:34 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-01-06 23:35 2.4.20, .text.lock.swap cpu usage? (ibm x440) Chris Wood
2003-01-06 23:50 ` William Lee Irwin III
2003-01-06 23:52 ` Andrew Morton
2003-01-09 17:17 ` Chris Wood
2003-01-09 20:18 ` Andrew Morton
2003-01-10 0:25 ` William Lee Irwin III
2003-01-10 0:44 ` Brian Tinsley [this message]
2003-01-10 0:55 ` William Lee Irwin III
2003-01-10 20:42 ` Chris Wood
2003-01-09 2:20 ` James Cleverdon
2003-01-09 2:57 ` William Lee Irwin III
-- strict thread matches above, loose matches on Subject: below --
2003-01-10 3:17 Brian Tinsley
2003-01-10 3:29 ` William Lee Irwin III
2003-01-10 3:42 ` Brian Tinsley
2003-01-10 3:54 ` William Lee Irwin III
2003-01-10 4:08 ` Brian Tinsley
2003-01-10 4:19 ` William Lee Irwin III
2003-01-10 4:50 ` Brian Tinsley
2003-01-10 5:17 ` Martin J. Bligh
2003-01-10 5:24 ` William Lee Irwin III
2003-01-10 5:45 ` Brian Tinsley
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