From: Nick Piggin <nickpiggin@yahoo.com.au>
To: yang.yi@bmrtech.com
Cc: LKML <linux-kernel@vger.kernel.org>,
China Performance Team <china-perf@mvista.com>
Subject: Re: 2.6 kernel series have noticeable performance regression, URLs
Date: Tue, 14 Jun 2005 19:53:14 +1000 [thread overview]
Message-ID: <42AEA90A.4010004@yahoo.com.au> (raw)
In-Reply-To: <1118739967.10339.1571.camel@montavista2>
yangyi wrote:
> Hi, all
>
> Because of format problem, the previous articles are very hard to read,
> now, I can provide a ftp server for downloading those test results.
> Please use gedit to read it.
>
fork/exec/sh regressions will be mostly due to the unfortunate
4level page tables regressions which have been fixed after 2.6.11.
Also, on the SMP machine, you should bind the entire lmbench test
to just one of the CPUs, because changes to SMP balancing can have
disproportionate or unrealistic changes.
It would be good if you could compare again with the latest 2.6.12
-git release.
Thanks,
Nick
--
SUSE Labs, Novell Inc.
Send instant messages to your online friends http://au.messenger.yahoo.com
prev parent reply other threads:[~2005-06-14 9:53 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-14 9:06 2.6 kernel series have noticeable performance regression, URLs yangyi
2005-06-14 9:53 ` Nick Piggin [this message]
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