On Fri, Dec 23, 2016 at 09:15:00AM +1100, Dave Chinner wrote:
> On Thu, Dec 22, 2016 at 01:10:19PM -0800, Linus Torvalds wrote:
> > Ok, so the numa issue was a red herring. With that fixed:
> >
> > On Thu, Dec 22, 2016 at 1:06 PM, Dave Chinner <da...@fromorbit.com> wrote:
> > >
> > > Better, but still bad. average files/s is not up to 200k files/s,
> > > so still a good 10-15% off where it should be. xfs_repair is back
> > > down to 10-15% off where it should be, too. bulkstat still fires off
> > > a bad page reference count warning, iscsi still panics immediately.
> >
> > Do you have CONFIG_BLK_WBT enabled, perhaps?
>
> Ok, yes, that's enabled. Let me go turn it off and see what happens.
Numbers are still all over the place.
FSUse% Count Size Files/sec App Overhead
.....
0 28800000 0 228175.5 21928812
0 30400000 0 167880.5 39628229
0 32000000 0 124289.5 41420925
0 33600000 0 150577.9 35382318
0 35200000 0 216535.4 16072628
0 36800000 0 233414.4 11846654
0 38400000 0 213812.0 13356633
0 40000000 0 175905.7 53012015
0 41600000 0 157028.7 34700794
0 43200000 0 138829.1 50282461
And the average is now back down to 185k files/s. repair runtime is
unchanged and still 10-15% off...
I've got to run away for a few hours right now, but I'll retest the
4.9 + xfs for-next branch when I get back to see if the problem is
my curent config or whether there really is a perf problem lurking
somewhere....
Cheers,
Dave.
--
Dave Chinner
da...@fromorbit.com
