On Mon, Jul 29, 2013 at 05:06:43PM +1000, Dave Chinner wrote:
> On Sat, Jul 27, 2013 at 04:26:28AM -0700, Paul E. McKenney wrote:
> > On Sat, Jul 27, 2013 at 04:21:01PM +1000, Dave Chinner wrote:
> > > On Fri, Jul 26, 2013 at 09:05:24PM -0700, Paul E. McKenney wrote:
> > > > Could you please send
On Mon, Jul 29, 2013 at 05:06:43PM +1000, Dave Chinner wrote:
On Sat, Jul 27, 2013 at 04:26:28AM -0700, Paul E. McKenney wrote:
On Sat, Jul 27, 2013 at 04:21:01PM +1000, Dave Chinner wrote:
On Fri, Jul 26, 2013 at 09:05:24PM -0700, Paul E. McKenney wrote:
Could you please send your
On Sat, Jul 27, 2013 at 04:26:28AM -0700, Paul E. McKenney wrote:
> On Sat, Jul 27, 2013 at 04:21:01PM +1000, Dave Chinner wrote:
> > On Fri, Jul 26, 2013 at 09:05:24PM -0700, Paul E. McKenney wrote:
> > > Could you please send your patches over to Dave Jones right now? I am
> > > getting quite
On Sat, Jul 27, 2013 at 04:26:28AM -0700, Paul E. McKenney wrote:
On Sat, Jul 27, 2013 at 04:21:01PM +1000, Dave Chinner wrote:
On Fri, Jul 26, 2013 at 09:05:24PM -0700, Paul E. McKenney wrote:
Could you please send your patches over to Dave Jones right now? I am
getting quite tired of
On Sat, Jul 27, 2013 at 04:21:01PM +1000, Dave Chinner wrote:
> On Fri, Jul 26, 2013 at 09:05:24PM -0700, Paul E. McKenney wrote:
> > On Sat, Jul 27, 2013 at 12:57:03PM +1000, Dave Chinner wrote:
> > > On Fri, Jul 26, 2013 at 04:28:52PM -0700, Paul E. McKenney wrote:
> > > > Dave Jones reported
On Fri, Jul 26, 2013 at 09:05:24PM -0700, Paul E. McKenney wrote:
> On Sat, Jul 27, 2013 at 12:57:03PM +1000, Dave Chinner wrote:
> > On Fri, Jul 26, 2013 at 04:28:52PM -0700, Paul E. McKenney wrote:
> > > Dave Jones reported RCU stalls, overly long hrtimer interrupts, and
> > > amazingly long NMI
On Fri, Jul 26, 2013 at 09:05:24PM -0700, Paul E. McKenney wrote:
On Sat, Jul 27, 2013 at 12:57:03PM +1000, Dave Chinner wrote:
On Fri, Jul 26, 2013 at 04:28:52PM -0700, Paul E. McKenney wrote:
Dave Jones reported RCU stalls, overly long hrtimer interrupts, and
amazingly long NMI handlers
On Sat, Jul 27, 2013 at 04:21:01PM +1000, Dave Chinner wrote:
On Fri, Jul 26, 2013 at 09:05:24PM -0700, Paul E. McKenney wrote:
On Sat, Jul 27, 2013 at 12:57:03PM +1000, Dave Chinner wrote:
On Fri, Jul 26, 2013 at 04:28:52PM -0700, Paul E. McKenney wrote:
Dave Jones reported RCU stalls,
On Sat, Jul 27, 2013 at 12:57:03PM +1000, Dave Chinner wrote:
> On Fri, Jul 26, 2013 at 04:28:52PM -0700, Paul E. McKenney wrote:
> > Dave Jones reported RCU stalls, overly long hrtimer interrupts, and
> > amazingly long NMI handlers from a trinity-induced workload involving
> > lots of concurrent
On Fri, Jul 26, 2013 at 04:28:52PM -0700, Paul E. McKenney wrote:
> Dave Jones reported RCU stalls, overly long hrtimer interrupts, and
> amazingly long NMI handlers from a trinity-induced workload involving
> lots of concurrent sync() calls (https://lkml.org/lkml/2013/7/23/369).
> There are any
On Fri, Jul 26, 2013 at 05:29:44PM -0700, Linus Torvalds wrote:
> On Fri, Jul 26, 2013 at 4:28 PM, Paul E. McKenney
> wrote:
> > +
> > + snap = ACCESS_ONCE(sync_seq);
> > + smp_mb(); /* Prevent above from bleeding into critical section. */
> > + mutex_lock(_mutex);
> > +
On Fri, Jul 26, 2013 at 4:28 PM, Paul E. McKenney
wrote:
> +
> + snap = ACCESS_ONCE(sync_seq);
> + smp_mb(); /* Prevent above from bleeding into critical section. */
> + mutex_lock(_mutex);
> + snap_done = ACCESS_ONCE(sync_seq);
> + if (ULONG_CMP_GE(snap_done,
Dave Jones reported RCU stalls, overly long hrtimer interrupts, and
amazingly long NMI handlers from a trinity-induced workload involving
lots of concurrent sync() calls (https://lkml.org/lkml/2013/7/23/369).
There are any number of things that one might do to make sync() behave
better under high
Dave Jones reported RCU stalls, overly long hrtimer interrupts, and
amazingly long NMI handlers from a trinity-induced workload involving
lots of concurrent sync() calls (https://lkml.org/lkml/2013/7/23/369).
There are any number of things that one might do to make sync() behave
better under high
On Fri, Jul 26, 2013 at 4:28 PM, Paul E. McKenney
paul...@linux.vnet.ibm.com wrote:
+
+ snap = ACCESS_ONCE(sync_seq);
+ smp_mb(); /* Prevent above from bleeding into critical section. */
+ mutex_lock(sync_mutex);
+ snap_done = ACCESS_ONCE(sync_seq);
+ if
On Fri, Jul 26, 2013 at 05:29:44PM -0700, Linus Torvalds wrote:
On Fri, Jul 26, 2013 at 4:28 PM, Paul E. McKenney
paul...@linux.vnet.ibm.com wrote:
+
+ snap = ACCESS_ONCE(sync_seq);
+ smp_mb(); /* Prevent above from bleeding into critical section. */
+
On Fri, Jul 26, 2013 at 04:28:52PM -0700, Paul E. McKenney wrote:
Dave Jones reported RCU stalls, overly long hrtimer interrupts, and
amazingly long NMI handlers from a trinity-induced workload involving
lots of concurrent sync() calls (https://lkml.org/lkml/2013/7/23/369).
There are any
On Sat, Jul 27, 2013 at 12:57:03PM +1000, Dave Chinner wrote:
On Fri, Jul 26, 2013 at 04:28:52PM -0700, Paul E. McKenney wrote:
Dave Jones reported RCU stalls, overly long hrtimer interrupts, and
amazingly long NMI handlers from a trinity-induced workload involving
lots of concurrent sync()
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