From: William Lee Irwin III <wli@holomorphy.com>
To: Denis Vlasenko <vda@port.imtp.ilyichevsk.odessa.ua>
Cc: linux-kernel@vger.kernel.org, Andrew Morton <akpm@osdl.org>
Subject: Re: top hogs CPU in 2.6: kallsyms_lookup is very slow
Date: Fri, 17 Sep 2004 03:55:23 -0700 [thread overview]
Message-ID: <20040917105523.GL9106@holomorphy.com> (raw)
In-Reply-To: <200409171201.15158.vda@port.imtp.ilyichevsk.odessa.ua>
On Thursday 16 September 2004 15:17, William Lee Irwin III wrote:
>> Did the kallsyms patches reduce the cpu overhead from get_wchan()?
On Fri, Sep 17, 2004 at 12:01:15PM +0300, Denis Vlasenko wrote:
> Yes. top does not hog CPU anymore. It takes even a liitle bit *less*
> CPU than in 2.4 now.
Brilliant! Profile comparisons (merely booting the same kernels with
profile=2 or whatever shift you deem acceptable given that little RAM),
if feasible, would also be appreciated.
Thanks.
-- wli
next prev parent reply other threads:[~2004-09-17 10:56 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-16 11:28 top hogs CPU in 2.6: kallsyms_lookup is very slow Denis Vlasenko
2004-09-16 11:45 ` William Lee Irwin III
2004-09-16 11:57 ` Denis Vlasenko
2004-09-16 12:17 ` William Lee Irwin III
2004-09-16 12:31 ` Denis Vlasenko
2004-09-17 8:57 ` Denis Vlasenko
2004-09-17 11:03 ` William Lee Irwin III
2004-09-17 12:34 ` Denis Vlasenko
2004-09-17 13:33 ` William Lee Irwin III
2004-09-17 20:36 ` Denis Vlasenko
2004-09-17 21:32 ` William Lee Irwin III
[not found] ` <200409172155.29561.vda@port.imtp.ilyichevsk.odessa.ua>
2004-09-18 13:57 ` [PATCH] trivial patch for 2.4: always inline __constant_* Denis Vlasenko
2004-09-18 14:03 ` [PATCH] trivial patch for 2.4: resolve megaraid_info name collision Denis Vlasenko
2004-09-18 14:02 ` Marcelo Tosatti
2004-09-18 15:05 ` [PATCH] trivial patch for 2.4: always inline __constant_* Marcelo Tosatti
2004-09-17 9:01 ` top hogs CPU in 2.6: kallsyms_lookup is very slow Denis Vlasenko
2004-09-17 10:55 ` William Lee Irwin III [this message]
2004-09-17 11:27 ` Paulo Marques
2004-09-17 11:21 ` Denis Vlasenko
2004-09-17 12:10 ` William Lee Irwin III
2004-09-17 13:04 ` Denis Vlasenko
2004-09-17 13:55 ` Larry McVoy
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