From: William Lee Irwin III <wli@holomorphy.com>
To: Wes Janzen <superchkn@sbcglobal.net>
Cc: Con Kolivas <kernel@kolivas.org>,
linux kernel mailing list <linux-kernel@vger.kernel.org>
Subject: Re: [RFC] Re: Blender profiling-1 O16.2int
Date: Mon, 18 Aug 2003 17:31:10 -0700 [thread overview]
Message-ID: <20030819003110.GY32488@holomorphy.com> (raw)
In-Reply-To: <3F416BD4.3040302@sbcglobal.net>
On Mon, Aug 18, 2003 at 07:14:12PM -0500, Wes Janzen wrote:
> That makes sense, I was running a program that I found on IBM's website
> that's supposed to test context switching speed this weekend. It has 1
> free lock and passes them around the group. If I put it up to 32
> threads or so with one spare lock, I can start to see the starvation.
> When running vmstat, it's apparent when the the starvation occurs as the
> context switching sky-rockets. I was going to add to the example code
> to check for how many times a thread wakes up waiting for the lock and
> can't get it after reading that message about locks in the list. I
> guess I won't have to do that now. Anyway, that'll bring my system to a
> halt when the thread count gets up over 256. Still, it's usuable as
> long as I'm not doing something else that makes heavy use of the processor.
Could you give a URL to that benchmark?
Thanks.
-- wli
next prev parent reply other threads:[~2003-08-19 0:30 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20030817003128.04855aed.voluspa@comhem.se>
[not found] ` <200308171142.33131.kernel@kolivas.org>
[not found] ` <20030817073859.51021571.voluspa@comhem.se>
2003-08-17 13:36 ` [RFC] Re: Blender profiling-1 O16.2int Con Kolivas
2003-08-17 16:34 ` Con Kolivas
2003-08-18 0:30 ` William Lee Irwin III
2003-08-19 0:14 ` Wes Janzen
2003-08-19 0:28 ` Con Kolivas
2003-08-19 0:37 ` Richard A Nelson
2003-08-19 8:39 ` Rob Landley
2003-08-19 0:31 ` William Lee Irwin III [this message]
2003-08-19 0:58 ` Wes Janzen
[not found] <20030818110001.6564.64238.Mailman@lists.us.dell.com>
2003-08-18 12:52 ` Max Hailperin
2003-08-18 13:05 ` Con Kolivas
2003-08-18 14:43 ` William Lee Irwin III
2003-08-26 2:54 Kester Maddock
2003-08-26 5:03 ` Con Kolivas
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