From: Dan Williams <dan.j.williams@intel.com>
To: John Robinson <john.robinson@anonymous.org.uk>
Cc: Tao Guo <glorioustao@gmail.com>,
Jeremy Sanders <jeremy@jeremysanders.net>,
linux-raid@vger.kernel.org
Subject: Re: async/X threads and rebuild slowdown
Date: Tue, 23 Mar 2010 14:08:45 -0700 [thread overview]
Message-ID: <e9c3a7c21003231408re62cd32q484fc26f326865b2@mail.gmail.com> (raw)
In-Reply-To: <4B9F8C76.9010702@anonymous.org.uk>
On Tue, Mar 16, 2010 at 6:49 AM, John Robinson
<john.robinson@anonymous.org.uk> wrote:
> On 16/03/2010 13:24, Tao Guo wrote:
>>
>> I also meet this problem in several of my machines. If I change back
>> to kernel 2.6.18, it is
>> OK, but in 2.6.32 kernel, the performance is really poor.
>>
>> At last I found a solution, set CONFIG_MULTICORE_RAID456=n when
>> compiling raid456 module,
>> then everything goes normal. My machines do have multicore cpu, so it
>> is weird :<
>> Maybe there is something wrong with the CONFIG_MULTICORE_RAID456 enabled
>> code?
>
> I remember it being discussed on this list, so yes I think there is or was.
>
fyi,
https://bugzilla.redhat.com/show_bug.cgi?id=575897
--
Dan
prev parent reply other threads:[~2010-03-23 21:08 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-16 12:41 async/X threads and rebuild slowdown Jeremy Sanders
2010-03-16 13:24 ` Tao Guo
2010-03-16 13:49 ` John Robinson
2010-03-23 21:08 ` Dan Williams [this message]
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