From: Andrew Morton <akpm@linux-foundation.org>
To: Diego Calleja <diegocg@gmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Performance regressions in 2.6.30-rc7?
Date: Fri, 29 May 2009 21:07:18 -0700 [thread overview]
Message-ID: <20090529210718.bef7a9c1.akpm@linux-foundation.org> (raw)
In-Reply-To: <200905282249.28592.diegocg@gmail.com>
On Thu, 28 May 2009 22:49:28 +0200 Diego Calleja <diegocg@gmail.com> wrote:
> Hi, phoronix.com has run some benchmarks in 2.6.30-rc7 [1], there're some
> good numbers, but there's also a couple of regressions. Some people think
> that phoronix benchmarks are not very serious/reliable/meaningful, but i
> thought it'd be better to post false warnings than letting real regressions
> slip in without notice.
>
> The regressions would be:
> - 7zip MIPS ("7zr b" command) http://www.phoronix.com/data/img/results/linux_2630/1.png
>
> - tiobench latency (not throughput) using 64MB writes with 32 threads
> http://www.phoronix.com/data/img/results/linux_2630/7.png
>
> -gnupg 2GB file encryption http://www.phoronix.com/data/img/results/linux_2630/3.png
>
>
> Full article: http://www.phoronix.com/scan.php?page=article&item=linux_2630
Those regressions are huge. They appear to be on compute-intensive
workloads too.
I wonder if some expensive debugging option turned itself on or
something silly like that.
next prev parent reply other threads:[~2009-05-30 4:07 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-28 20:49 Performance regressions in 2.6.30-rc7? Diego Calleja
2009-05-30 4:07 ` Andrew Morton [this message]
2009-05-30 16:51 ` Diego Calleja
2009-06-03 19:58 ` Jan Kara
[not found] ` <1244100382.7131.12.camel@marge.simson.net>
[not found] ` <20090604112109.GC2859@duck.suse.cz>
[not found] ` <1244142795.5731.31.camel@marge.simson.net>
2009-06-09 10:32 ` Jan Kara
2009-06-09 18:48 ` Chris Mason
2009-06-10 9:12 ` Jan Kara
2009-06-10 9:12 ` Jan Kara
2009-06-10 22:12 ` Jeff Moyer
2009-07-15 10:43 ` Jan Kara
2009-07-15 13:41 ` Jeff Moyer
2009-07-15 14:58 ` Jan Kara
2009-07-15 17:50 ` Jan Kara
2009-07-15 18:54 ` Jan Kara
2009-07-16 14:36 ` Jeff Moyer
2009-07-16 14:46 ` Jan Kara
2009-07-16 14:59 ` Jeff Moyer
2009-07-16 16:34 ` Jan Kara
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