On Thu, 2014-01-16 at 13:05 +0100, Peter Zijlstra wrote:
> On Wed, Jan 15, 2014 at 10:46:17PM -0800, Jason Low wrote:
> > On Thu, 2014-01-16 at 10:14 +0700, Linus Torvalds wrote:
> > > On Thu, Jan 16, 2014 at 9:45 AM, Jason Low wrote:
> > > >
> > > > Any comments on the below change which unlocks
On Wed, Jan 15, 2014 at 10:46:17PM -0800, Jason Low wrote:
> On Thu, 2014-01-16 at 10:14 +0700, Linus Torvalds wrote:
> > On Thu, Jan 16, 2014 at 9:45 AM, Jason Low wrote:
> > >
> > > Any comments on the below change which unlocks the mutex before taking
> > > the lock->wait_lock to wake up a
On Wed, Jan 15, 2014 at 10:46:17PM -0800, Jason Low wrote:
On Thu, 2014-01-16 at 10:14 +0700, Linus Torvalds wrote:
On Thu, Jan 16, 2014 at 9:45 AM, Jason Low jason.l...@hp.com wrote:
Any comments on the below change which unlocks the mutex before taking
the lock-wait_lock to wake up a
On Thu, 2014-01-16 at 13:05 +0100, Peter Zijlstra wrote:
On Wed, Jan 15, 2014 at 10:46:17PM -0800, Jason Low wrote:
On Thu, 2014-01-16 at 10:14 +0700, Linus Torvalds wrote:
On Thu, Jan 16, 2014 at 9:45 AM, Jason Low jason.l...@hp.com wrote:
Any comments on the below change which
On Thu, 2014-01-16 at 10:14 +0700, Linus Torvalds wrote:
> On Thu, Jan 16, 2014 at 9:45 AM, Jason Low wrote:
> >
> > Any comments on the below change which unlocks the mutex before taking
> > the lock->wait_lock to wake up a waiter? Thanks.
>
> Hmm. Doesn't that mean that a new lock owner can
On Thu, Jan 16, 2014 at 9:45 AM, Jason Low wrote:
>
> Any comments on the below change which unlocks the mutex before taking
> the lock->wait_lock to wake up a waiter? Thanks.
Hmm. Doesn't that mean that a new lock owner can come in *before*
you've called debug_mutex_unlock and the lockdep
On Tue, 2014-01-14 at 16:33 -0800, Jason Low wrote:
> When running workloads that have high contention in mutexes on an 8 socket
> machine, spinners would often spin for a long time with no lock owner.
>
> One of the potential reasons for this is because a thread can be preempted
> after clearing
On 01/14/2014 07:33 PM, Jason Low wrote:
When running workloads that have high contention in mutexes on an 8 socket
machine, spinners would often spin for a long time with no lock owner.
One of the potential reasons for this is because a thread can be preempted
after clearing lock->owner but
On 01/14/2014 07:33 PM, Jason Low wrote:
When running workloads that have high contention in mutexes on an 8 socket
machine, spinners would often spin for a long time with no lock owner.
One of the potential reasons for this is because a thread can be preempted
after clearing lock-owner but
On Tue, 2014-01-14 at 16:33 -0800, Jason Low wrote:
When running workloads that have high contention in mutexes on an 8 socket
machine, spinners would often spin for a long time with no lock owner.
One of the potential reasons for this is because a thread can be preempted
after clearing
On Thu, Jan 16, 2014 at 9:45 AM, Jason Low jason.l...@hp.com wrote:
Any comments on the below change which unlocks the mutex before taking
the lock-wait_lock to wake up a waiter? Thanks.
Hmm. Doesn't that mean that a new lock owner can come in *before*
you've called debug_mutex_unlock and the
On Thu, 2014-01-16 at 10:14 +0700, Linus Torvalds wrote:
On Thu, Jan 16, 2014 at 9:45 AM, Jason Low jason.l...@hp.com wrote:
Any comments on the below change which unlocks the mutex before taking
the lock-wait_lock to wake up a waiter? Thanks.
Hmm. Doesn't that mean that a new lock owner
On Tue, 2014-01-14 at 17:06 -0800, Davidlohr Bueso wrote:
> On Tue, 2014-01-14 at 16:33 -0800, Jason Low wrote:
> > When running workloads that have high contention in mutexes on an 8 socket
> > machine, spinners would often spin for a long time with no lock owner.
> >
> > One of the potential
On Tue, 2014-01-14 at 17:00 -0800, Andrew Morton wrote:
> On Tue, 14 Jan 2014 16:33:10 -0800 Jason Low wrote:
>
> > When running workloads that have high contention in mutexes on an 8 socket
> > machine, spinners would often spin for a long time with no lock owner.
> >
> > One of the potential
On Tue, 2014-01-14 at 16:33 -0800, Jason Low wrote:
> When running workloads that have high contention in mutexes on an 8 socket
> machine, spinners would often spin for a long time with no lock owner.
>
> One of the potential reasons for this is because a thread can be preempted
> after clearing
On Tue, 14 Jan 2014 16:33:10 -0800 Jason Low wrote:
> When running workloads that have high contention in mutexes on an 8 socket
> machine, spinners would often spin for a long time with no lock owner.
>
> One of the potential reasons for this is because a thread can be preempted
> after
When running workloads that have high contention in mutexes on an 8 socket
machine, spinners would often spin for a long time with no lock owner.
One of the potential reasons for this is because a thread can be preempted
after clearing lock->owner but before releasing the lock, or preempted after
When running workloads that have high contention in mutexes on an 8 socket
machine, spinners would often spin for a long time with no lock owner.
One of the potential reasons for this is because a thread can be preempted
after clearing lock-owner but before releasing the lock, or preempted after
On Tue, 14 Jan 2014 16:33:10 -0800 Jason Low jason.l...@hp.com wrote:
When running workloads that have high contention in mutexes on an 8 socket
machine, spinners would often spin for a long time with no lock owner.
One of the potential reasons for this is because a thread can be preempted
On Tue, 2014-01-14 at 16:33 -0800, Jason Low wrote:
When running workloads that have high contention in mutexes on an 8 socket
machine, spinners would often spin for a long time with no lock owner.
One of the potential reasons for this is because a thread can be preempted
after clearing
On Tue, 2014-01-14 at 17:00 -0800, Andrew Morton wrote:
On Tue, 14 Jan 2014 16:33:10 -0800 Jason Low jason.l...@hp.com wrote:
When running workloads that have high contention in mutexes on an 8 socket
machine, spinners would often spin for a long time with no lock owner.
One of the
On Tue, 2014-01-14 at 17:06 -0800, Davidlohr Bueso wrote:
On Tue, 2014-01-14 at 16:33 -0800, Jason Low wrote:
When running workloads that have high contention in mutexes on an 8 socket
machine, spinners would often spin for a long time with no lock owner.
One of the potential reasons for
22 matches
Mail list logo
