On Fri, May 05, 2017 at 06:28:45PM +0300, Yury Norov wrote:
> On Fri, May 05, 2017 at 01:26:40PM +0100, Will Deacon wrote:
> > On Fri, May 05, 2017 at 01:53:03PM +0200, Peter Zijlstra wrote:
> > > On Thu, May 04, 2017 at 11:28:09PM +0300, Yury Norov wrote:
> > > > I don't think
> > > > it's a real
On Fri, May 05, 2017 at 01:26:40PM +0100, Will Deacon wrote:
> On Fri, May 05, 2017 at 01:53:03PM +0200, Peter Zijlstra wrote:
> > On Thu, May 04, 2017 at 11:28:09PM +0300, Yury Norov wrote:
> > > I don't think
> > > it's a real use case to have ticket spinlocks and queued rwlocks
> >
> > There's
On Fri, May 05, 2017 at 01:53:03PM +0200, Peter Zijlstra wrote:
> On Thu, May 04, 2017 at 11:28:09PM +0300, Yury Norov wrote:
> > I don't think
> > it's a real use case to have ticket spinlocks and queued rwlocks
>
> There's nothing wrong with that combination. In fact, we merged qrwlock
> much ea
On Thu, May 04, 2017 at 11:28:09PM +0300, Yury Norov wrote:
> I don't think
> it's a real use case to have ticket spinlocks and queued rwlocks
There's nothing wrong with that combination. In fact, we merged qrwlock
much earlier than qspinlock.
On Wed, May 03, 2017 at 06:59:19PM +, pan xinhui wrote:
> 在 2017/5/3 22:51, Yury Norov 写道:> The patch 3 adds implementation for
> queued-based locking on
> > ARM64, and the option in kernel config to enable it. Patches
> > 1 and 2 fix some mess in header files to apply patch 3 smoothly.
> >
>
The patch 3 adds implementation for queued-based locking on
ARM64, and the option in kernel config to enable it. Patches
1 and 2 fix some mess in header files to apply patch 3 smoothly.
Tested on QDF2400 with huge improvements with these patches on
the torture tests, by Adam Wallis.
Tested on Thu
On Thu, Apr 13, 2017 at 01:33:09PM +0300, Yury Norov wrote:
> On Wed, Apr 12, 2017 at 01:04:55PM -0400, Adam Wallis wrote:
> > On 4/10/2017 5:35 PM, Yury Norov wrote:
> > > The patch of Jan Glauber enables queued spinlocks on arm64. I rebased it
> > > on
> > > latest kernel sources, and added a co
On Wed, Apr 12, 2017 at 01:04:55PM -0400, Adam Wallis wrote:
> On 4/10/2017 5:35 PM, Yury Norov wrote:
> > The patch of Jan Glauber enables queued spinlocks on arm64. I rebased it on
> > latest kernel sources, and added a couple of fixes to headers to apply it
> > smoothly.
> >
> > Though, lockto
On Wed, Apr 12, 2017 at 01:04:55PM -0400, Adam Wallis wrote:
> On 4/10/2017 5:35 PM, Yury Norov wrote:
> > The patch of Jan Glauber enables queued spinlocks on arm64. I rebased it on
> > latest kernel sources, and added a couple of fixes to headers to apply it
> > smoothly.
> >
> > Though, lockto
On 4/10/2017 5:35 PM, Yury Norov wrote:
> The patch of Jan Glauber enables queued spinlocks on arm64. I rebased it on
> latest kernel sources, and added a couple of fixes to headers to apply it
> smoothly.
>
> Though, locktourture test shows significant performance degradation in the
> acquisitio
The patch of Jan Glauber enables queued spinlocks on arm64. I rebased it on
latest kernel sources, and added a couple of fixes to headers to apply it
smoothly.
Though, locktourture test shows significant performance degradation in the
acquisition of rw-lock for read on qemu:
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