From: Greg KH <gregkh@linuxfoundation.org>
To: Xiachen Dong <xiachendong@hotmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 2.6.36 and higher version kernel slower than 2.6.25.1 kernel?
Date: Wed, 7 Mar 2012 11:47:28 -0800 [thread overview]
Message-ID: <20120307194728.GA26341@kroah.com> (raw)
In-Reply-To: <BAY167-W124DBC204D9E95FC00BAA44BD560@phx.gbl>
On Wed, Mar 07, 2012 at 12:04:33PM -0500, Xiachen Dong wrote:
>
> Hi,
>
> Recently we upgrade the OS for our AT91RM9200 platform from 2.6.25.1
> to 2.6.36. We run the SQLITE3 database insertion tests for the new
> kernel. The test result shows that 2.6.36 kernel is around 10% slower
> than the 2.6.25.1.
Ick.
As you noted this is still present in 3.0.23, any chance to try out
3.2.9?
And as you seem to have a good reproducable test, can you run 'git
bisect' between 2.6.35 and 2.6.36 to find the patch that causes this
problem so we can work on resolving it?
thanks,
greg k-h
next prev parent reply other threads:[~2012-03-07 19:54 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-07 17:04 2.6.36 and higher version kernel slower than 2.6.25.1 kernel? Xiachen Dong
2012-03-07 19:47 ` Greg KH [this message]
2012-03-07 19:59 ` Xiachen Dong
2012-03-07 20:06 ` Greg KH
-- strict thread matches above, loose matches on Subject: below --
2012-03-07 16:59 Xiachen Dong
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