Re: [Regression 3.16-rc kernel] -55% reduction in throughput for OLTP benchmark

From: Tim Chen
Date: Tue Jul 29 2014 - 13:50:08 EST


On Tue, 2014-07-29 at 09:49 -0700, Christoph Hellwig wrote:
> On Tue, Jul 29, 2014 at 09:35:02AM -0700, Tim Chen wrote:
> > On Tue, 2014-07-29 at 07:19 -0700, Christoph Hellwig wrote:
> > > Hi Tim,
> > >
> > > I think the problem is that sdio.size doesn't get set set with
> > > the new dio code. Please try the patch below to fix this by not
> > > relying on that field:
> >
> > Thanks for your quick response. We'll test this patch and let you
> > know the results.
>
> There actually was a little bug in it, please try the version below
> instead:
>

Thanks. Will do.

Tim

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