From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
To: Fengguang Wu <fengguang.wu@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
lkp@linux.intel.com
Subject: Re: [sched] 23f0d2093c: -12.6% regression on sparse file copy
Date: Mon, 6 Jan 2014 16:49:28 +0900 [thread overview]
Message-ID: <20140106074928.GB25771@lge.com> (raw)
In-Reply-To: <20140106071007.GB23042@localhost>
On Mon, Jan 06, 2014 at 03:10:07PM +0800, Fengguang Wu wrote:
> Hi Joonsoo,
>
> On Mon, Jan 06, 2014 at 09:30:52AM +0900, Joonsoo Kim wrote:
> > On Sun, Jan 05, 2014 at 05:04:56PM +0800, fengguang.wu@intel.com wrote:
> > > Hi Joonsoo,
> > >
> > > We noticed the below changes for commit 23f0d2093c ("sched: Factor out
> > > code to should_we_balance()") in test vm-scalability/300s-lru-file-readtwice
> >
> > Hello, Fengguang.
> >
> > There was a mistake in this patch and there was a fix and it was already merged
> > into mainline.
> >
> > Could you test again with the commit (b0cff9d sched: Fix load balancing
> > performance regression in should_we_balance())?
>
> Yes, b0cff9d completely restores the performance. Sorry for the noise!
Thanks for quick response. :)
prev parent reply other threads:[~2014-01-06 7:49 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-05 9:04 fengguang.wu
2014-01-06 0:30 ` Joonsoo Kim
2014-01-06 7:10 ` Fengguang Wu
2014-01-06 7:49 ` Joonsoo Kim [this message]
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