Re: [GIT PULL] nohz: Move nohz kick out of scheduler IPI, v9
* Peter Zijlstra wrote: > On Wed, Jun 18, 2014 at 06:48:41PM +0200, Ingo Molnar wrote: > > > > * Frederic Weisbecker wrote: > > > Please pull the timers/nohz-irq-work-v7 branch that can be found at: > > > > > > > Pulled, thanks a lot Frederic! > > Ingo, the previous version had one of your machines fall over, is that > machine good now? It appears so. Will let you know if it still goes bad. Thanks, Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [GIT PULL] nohz: Move nohz kick out of scheduler IPI, v9
* Peter Zijlstra pet...@infradead.org wrote: On Wed, Jun 18, 2014 at 06:48:41PM +0200, Ingo Molnar wrote: * Frederic Weisbecker fweis...@gmail.com wrote: Please pull the timers/nohz-irq-work-v7 branch that can be found at: Pulled, thanks a lot Frederic! Ingo, the previous version had one of your machines fall over, is that machine good now? It appears so. Will let you know if it still goes bad. Thanks, Ingo -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [GIT PULL] nohz: Move nohz kick out of scheduler IPI, v9
On Wed, Jun 18, 2014 at 06:48:41PM +0200, Ingo Molnar wrote: > > * Frederic Weisbecker wrote: > > Please pull the timers/nohz-irq-work-v7 branch that can be found at: > > > > Pulled, thanks a lot Frederic! Ingo, the previous version had one of your machines fall over, is that machine good now? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [GIT PULL] nohz: Move nohz kick out of scheduler IPI, v9
On Wed, Jun 18, 2014 at 06:48:41PM +0200, Ingo Molnar wrote: * Frederic Weisbecker fweis...@gmail.com wrote: Please pull the timers/nohz-irq-work-v7 branch that can be found at: Pulled, thanks a lot Frederic! Ingo, the previous version had one of your machines fall over, is that machine good now? -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [GIT PULL] nohz: Move nohz kick out of scheduler IPI, v9
* Frederic Weisbecker wrote: > Ingo, > > Please pull the timers/nohz-irq-work-v7 branch that can be found at: > > git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git > timers/nohz-irq-work-v7 > > It has been acked by Peterz. > > --- Summary --- > > This set moves the nohz kick, used to notify a full dynticks CPU when > events require tick rescheduling, out of the scheduler tick to a > dedicated IPI. > > This debloats a bit the scheduler IPI from off-topic work that was > abusing that scheduler fast path for its convenient asynchronous > properties. Now the nohz kick uses irq work for its own needs. > > Of course this implied quite some background infrastructure rework, > including: > > * Clean up some irq work internals > * Implement remote irq work > * Implement nohz kick on top of remote irq work > * Move full dynticks timer enqueue notification to new kick > * Move multi-task notification to new kick > * Remove unecessary barriers on multi-task notification > > Thanks, > Frederic > --- > > Frederic Weisbecker (6): > irq_work: Split raised and lazy lists > irq_work: Implement remote queueing > nohz: Support nohz full remote kick > nohz: Switch to nohz full remote kick on timer enqueue > nohz: Use nohz own full kick on 2nd task enqueue > nohz: Use IPI implicit full barrier against rq->nr_running r/w > > > include/linux/irq_work.h | 5 > include/linux/tick.h | 9 +- > kernel/irq_work.c| 76 > ++-- > kernel/sched/core.c | 22 -- > kernel/sched/sched.h | 12 ++-- > kernel/smp.c | 9 ++ > kernel/time/tick-sched.c | 10 --- > 7 files changed, 97 insertions(+), 46 deletions(-) Pulled, thanks a lot Frederic! Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [GIT PULL] nohz: Move nohz kick out of scheduler IPI, v9
* Frederic Weisbecker fweis...@gmail.com wrote: Ingo, Please pull the timers/nohz-irq-work-v7 branch that can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git timers/nohz-irq-work-v7 It has been acked by Peterz. --- Summary --- This set moves the nohz kick, used to notify a full dynticks CPU when events require tick rescheduling, out of the scheduler tick to a dedicated IPI. This debloats a bit the scheduler IPI from off-topic work that was abusing that scheduler fast path for its convenient asynchronous properties. Now the nohz kick uses irq work for its own needs. Of course this implied quite some background infrastructure rework, including: * Clean up some irq work internals * Implement remote irq work * Implement nohz kick on top of remote irq work * Move full dynticks timer enqueue notification to new kick * Move multi-task notification to new kick * Remove unecessary barriers on multi-task notification Thanks, Frederic --- Frederic Weisbecker (6): irq_work: Split raised and lazy lists irq_work: Implement remote queueing nohz: Support nohz full remote kick nohz: Switch to nohz full remote kick on timer enqueue nohz: Use nohz own full kick on 2nd task enqueue nohz: Use IPI implicit full barrier against rq-nr_running r/w include/linux/irq_work.h | 5 include/linux/tick.h | 9 +- kernel/irq_work.c| 76 ++-- kernel/sched/core.c | 22 -- kernel/sched/sched.h | 12 ++-- kernel/smp.c | 9 ++ kernel/time/tick-sched.c | 10 --- 7 files changed, 97 insertions(+), 46 deletions(-) Pulled, thanks a lot Frederic! Ingo -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[GIT PULL] nohz: Move nohz kick out of scheduler IPI, v9
Ingo, Please pull the timers/nohz-irq-work-v7 branch that can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git timers/nohz-irq-work-v7 It has been acked by Peterz. --- Summary --- This set moves the nohz kick, used to notify a full dynticks CPU when events require tick rescheduling, out of the scheduler tick to a dedicated IPI. This debloats a bit the scheduler IPI from off-topic work that was abusing that scheduler fast path for its convenient asynchronous properties. Now the nohz kick uses irq work for its own needs. Of course this implied quite some background infrastructure rework, including: * Clean up some irq work internals * Implement remote irq work * Implement nohz kick on top of remote irq work * Move full dynticks timer enqueue notification to new kick * Move multi-task notification to new kick * Remove unecessary barriers on multi-task notification Thanks, Frederic --- Frederic Weisbecker (6): irq_work: Split raised and lazy lists irq_work: Implement remote queueing nohz: Support nohz full remote kick nohz: Switch to nohz full remote kick on timer enqueue nohz: Use nohz own full kick on 2nd task enqueue nohz: Use IPI implicit full barrier against rq->nr_running r/w include/linux/irq_work.h | 5 include/linux/tick.h | 9 +- kernel/irq_work.c| 76 ++-- kernel/sched/core.c | 22 -- kernel/sched/sched.h | 12 ++-- kernel/smp.c | 9 ++ kernel/time/tick-sched.c | 10 --- 7 files changed, 97 insertions(+), 46 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[GIT PULL] nohz: Move nohz kick out of scheduler IPI, v9
Ingo, Please pull the timers/nohz-irq-work-v7 branch that can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git timers/nohz-irq-work-v7 It has been acked by Peterz. --- Summary --- This set moves the nohz kick, used to notify a full dynticks CPU when events require tick rescheduling, out of the scheduler tick to a dedicated IPI. This debloats a bit the scheduler IPI from off-topic work that was abusing that scheduler fast path for its convenient asynchronous properties. Now the nohz kick uses irq work for its own needs. Of course this implied quite some background infrastructure rework, including: * Clean up some irq work internals * Implement remote irq work * Implement nohz kick on top of remote irq work * Move full dynticks timer enqueue notification to new kick * Move multi-task notification to new kick * Remove unecessary barriers on multi-task notification Thanks, Frederic --- Frederic Weisbecker (6): irq_work: Split raised and lazy lists irq_work: Implement remote queueing nohz: Support nohz full remote kick nohz: Switch to nohz full remote kick on timer enqueue nohz: Use nohz own full kick on 2nd task enqueue nohz: Use IPI implicit full barrier against rq-nr_running r/w include/linux/irq_work.h | 5 include/linux/tick.h | 9 +- kernel/irq_work.c| 76 ++-- kernel/sched/core.c | 22 -- kernel/sched/sched.h | 12 ++-- kernel/smp.c | 9 ++ kernel/time/tick-sched.c | 10 --- 7 files changed, 97 insertions(+), 46 deletions(-) -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
