On Tue, 2015-01-27 at 15:45 +0800, Huang Ying wrote:
> Hi, Davidlohr,
>
> Any update on this? The latest news I gotten is that you finally
> reproduced this.
The overall differences and cause of the issue is commit 37e9562453b
(locking/rwsem: Allow conservative optimistic spinning when readers h
Hi, Davidlohr,
Any update on this? The latest news I gotten is that you finally
reproduced this.
Best Regards,
Huang, Ying
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I was finally able to reproduce this (had to hack the damn Run script).
I'll look into it more carefully now, thanks for reporting it.
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On Fri, 2015-01-09 at 11:03 +0800, Huang Ying wrote:
> Is it possible for you to try the reproduce steps in the original
> reporting email sent by me? If you have any question on that steps,
> feel free to ask.
Yes I've already done that, nothing. My question remains, can you
reproduce this yours
On Thu, 2015-01-08 at 18:47 -0800, Davidlohr Bueso wrote:
> On Thu, 2015-01-08 at 10:27 +0800, Huang Ying wrote:
> > FYI, we noticed the below changes on
> >
> > commit c8c06efa8b552608493b7066c234cfa82c47fcea ("mm: convert i_mmap_mutex
> > to rwsem")
> >
> >
> > testbox/testcase/testparams: li
On Thu, 2015-01-08 at 10:27 +0800, Huang Ying wrote:
> FYI, we noticed the below changes on
>
> commit c8c06efa8b552608493b7066c234cfa82c47fcea ("mm: convert i_mmap_mutex to
> rwsem")
>
>
> testbox/testcase/testparams: lituya/unixbench/performance-execl
>
> 83cde9e8ba95d180 c8c06efa8b55260849
On Thu, Jan 08, 2015 at 12:59:59AM -0800, Davidlohr Bueso wrote:
> > > > 721721 ± 1%+303.6%2913110 ± 3%
> > > > unixbench.time.voluntary_context_switches
> > > > 11767 ± 0% -7.6% 10867 ± 1% unixbench.score
> heh I was actually looking at the reader code. We really
On Wed, 2015-01-07 at 23:50 -0800, Davidlohr Bueso wrote:
> On Wed, 2015-01-07 at 23:45 -0800, Davidlohr Bueso wrote:
> > On Thu, 2015-01-08 at 10:27 +0800, Huang Ying wrote:
> > Cc'ing Peter.
>
> Err, resending with the complete msg.
>
> > > FYI, we noticed the below changes on
> > >
> > > comm
On Wed, 2015-01-07 at 23:45 -0800, Davidlohr Bueso wrote:
> On Thu, 2015-01-08 at 10:27 +0800, Huang Ying wrote:
> Cc'ing Peter.
>
> > FYI, we noticed the below changes on
> >
> > commit c8c06efa8b552608493b7066c234cfa82c47fcea ("mm: convert i_mmap_mutex
> > to rwsem")
>
> Same exact everything
On Wed, 2015-01-07 at 23:45 -0800, Davidlohr Bueso wrote:
> On Thu, 2015-01-08 at 10:27 +0800, Huang Ying wrote:
> Cc'ing Peter.
Err, resending with the complete msg.
> > FYI, we noticed the below changes on
> >
> > commit c8c06efa8b552608493b7066c234cfa82c47fcea ("mm: convert i_mmap_mutex
> >
On Thu, 2015-01-08 at 10:27 +0800, Huang Ying wrote:
Cc'ing Peter.
> FYI, we noticed the below changes on
>
> commit c8c06efa8b552608493b7066c234cfa82c47fcea ("mm: convert i_mmap_mutex to
> rwsem")
Same exact everything, except for the lock type. No sharing going on.
> testbox/testcase/testpar
FYI, we noticed the below changes on
commit c8c06efa8b552608493b7066c234cfa82c47fcea ("mm: convert i_mmap_mutex to
rwsem")
testbox/testcase/testparams: lituya/unixbench/performance-execl
83cde9e8ba95d180 c8c06efa8b552608493b7066c2
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