lkml.org 
[lkml]   [2014]   [Jul]   [31]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [Regression 3.16-rc kernel] -55% reduction in throughput for OLTP benchmark
From
Date
On Tue, 2014-07-29 at 17:12 -0700, Christoph Hellwig wrote:
> On Tue, Jul 29, 2014 at 04:57:12PM -0700, Tim Chen wrote:
> > Christoph, we're glad to report that this patch does fix the problem.
> > Wonder if Al or someone can pick it up. It is a large regression
> > that should not be left unfixed for 3.16.
>
> Al has been away for a bit, and I prepared the last VFS pull. I'll pick
> it up for now and either Al or I will send it on before next weekend.
>
> Can I get a tested-by tag from you for the patch? Can anyone else
> please cross check it? The new total value might be different from
> the old size value when we do a short write, but I can't see how
> an async write would be a good thing if we had to finish the remainder
> using buffered I/O if the old code really allowed that.
>

Yes, please put in

Tested-by: Tim Chen <tim.c.chen@linux.intel.com>
Tested-by: Suruchi Kadu <suruchi.a.kadu@intel.com>

Tim



\
 
 \ /
  Last update: 2014-08-01 06:21    [W:0.083 / U:0.220 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site