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From: Ingo Molnar <mingo@kernel.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org,
	Peter Zijlstra <peterz@infradead.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Andrew Morton <akpm@linux-foundation.org>
Subject: [GIT PULL] scheduler fixes
Date: Sat, 12 Jun 2021 15:02:06 +0200	[thread overview]
Message-ID: <YMSwTuTE97YiP3cd@gmail.com> (raw)

Linus,

Please pull the latest sched/urgent git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git sched-urgent-2021-06-12

   # HEAD: 68d7a190682aa4eb02db477328088ebad15acc83 sched/fair: Fix util_est UTIL_AVG_UNCHANGED handling

Misc fixes:

 - Fix performance regression caused by lack of intended
   batching of RCU callbacks by over-eager NOHZ-full code.

 - Fix cgroups related corruption of load_avg and load_sum metrics.

 - Three fixes to fix blocked load, util_sum/runnable_sum and
   util_est tracking bugs.

 Thanks,

	Ingo

------------------>
Dietmar Eggemann (1):
      sched/fair: Fix util_est UTIL_AVG_UNCHANGED handling

Frederic Weisbecker (1):
      tick/nohz: Only check for RCU deferred wakeup on user/guest entry when needed

Vincent Guittot (3):
      sched/fair: Keep load_avg and load_sum synced
      sched/fair: Make sure to update tg contrib for blocked load
      sched/pelt: Ensure that *_sum is always synced with *_avg


 include/linux/entry-kvm.h |  3 ++-
 include/linux/sched.h     |  8 ++++++++
 include/linux/tick.h      |  7 +++++++
 kernel/entry/common.c     |  5 +++--
 kernel/sched/debug.c      |  3 ++-
 kernel/sched/fair.c       | 28 +++++++++++++++++-----------
 kernel/sched/pelt.h       | 11 +----------
 kernel/time/tick-sched.c  |  1 +
 8 files changed, 41 insertions(+), 25 deletions(-)

diff --git a/include/linux/entry-kvm.h b/include/linux/entry-kvm.h
index 8b2b1d68b954..136b8d97d8c0 100644
--- a/include/linux/entry-kvm.h
+++ b/include/linux/entry-kvm.h
@@ -3,6 +3,7 @@
 #define __LINUX_ENTRYKVM_H
 
 #include <linux/entry-common.h>
+#include <linux/tick.h>
 
 /* Transfer to guest mode work */
 #ifdef CONFIG_KVM_XFER_TO_GUEST_WORK
@@ -57,7 +58,7 @@ int xfer_to_guest_mode_handle_work(struct kvm_vcpu *vcpu);
 static inline void xfer_to_guest_mode_prepare(void)
 {
 	lockdep_assert_irqs_disabled();
-	rcu_nocb_flush_deferred_wakeup();
+	tick_nohz_user_enter_prepare();
 }
 
 /**
diff --git a/include/linux/sched.h b/include/linux/sched.h
index d2c881384517..28a98fc4ded4 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -350,11 +350,19 @@ struct load_weight {
  * Only for tasks we track a moving average of the past instantaneous
  * estimated utilization. This allows to absorb sporadic drops in utilization
  * of an otherwise almost periodic task.
+ *
+ * The UTIL_AVG_UNCHANGED flag is used to synchronize util_est with util_avg
+ * updates. When a task is dequeued, its util_est should not be updated if its
+ * util_avg has not been updated in the meantime.
+ * This information is mapped into the MSB bit of util_est.enqueued at dequeue
+ * time. Since max value of util_est.enqueued for a task is 1024 (PELT util_avg
+ * for a task) it is safe to use MSB.
  */
 struct util_est {
 	unsigned int			enqueued;
 	unsigned int			ewma;
 #define UTIL_EST_WEIGHT_SHIFT		2
+#define UTIL_AVG_UNCHANGED		0x80000000
 } __attribute__((__aligned__(sizeof(u64))));
 
 /*
diff --git a/include/linux/tick.h b/include/linux/tick.h
index 7340613c7eff..1a0ff88fa107 100644
--- a/include/linux/tick.h
+++ b/include/linux/tick.h
@@ -11,6 +11,7 @@
 #include <linux/context_tracking_state.h>
 #include <linux/cpumask.h>
 #include <linux/sched.h>
+#include <linux/rcupdate.h>
 
 #ifdef CONFIG_GENERIC_CLOCKEVENTS
 extern void __init tick_init(void);
@@ -300,4 +301,10 @@ static inline void tick_nohz_task_switch(void)
 		__tick_nohz_task_switch();
 }
 
+static inline void tick_nohz_user_enter_prepare(void)
+{
+	if (tick_nohz_full_cpu(smp_processor_id()))
+		rcu_nocb_flush_deferred_wakeup();
+}
+
 #endif
diff --git a/kernel/entry/common.c b/kernel/entry/common.c
index a0b3b04fb596..bf16395b9e13 100644
--- a/kernel/entry/common.c
+++ b/kernel/entry/common.c
@@ -5,6 +5,7 @@
 #include <linux/highmem.h>
 #include <linux/livepatch.h>
 #include <linux/audit.h>
+#include <linux/tick.h>
 
 #include "common.h"
 
@@ -186,7 +187,7 @@ static unsigned long exit_to_user_mode_loop(struct pt_regs *regs,
 		local_irq_disable_exit_to_user();
 
 		/* Check if any of the above work has queued a deferred wakeup */
-		rcu_nocb_flush_deferred_wakeup();
+		tick_nohz_user_enter_prepare();
 
 		ti_work = READ_ONCE(current_thread_info()->flags);
 	}
@@ -202,7 +203,7 @@ static void exit_to_user_mode_prepare(struct pt_regs *regs)
 	lockdep_assert_irqs_disabled();
 
 	/* Flush pending rcuog wakeup before the last need_resched() check */
-	rcu_nocb_flush_deferred_wakeup();
+	tick_nohz_user_enter_prepare();
 
 	if (unlikely(ti_work & EXIT_TO_USER_MODE_WORK))
 		ti_work = exit_to_user_mode_loop(regs, ti_work);
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
index 9c882f20803e..c5aacbd492a1 100644
--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c
@@ -885,6 +885,7 @@ static const struct seq_operations sched_debug_sops = {
 #define __PS(S, F) SEQ_printf(m, "%-45s:%21Ld\n", S, (long long)(F))
 #define __P(F) __PS(#F, F)
 #define   P(F) __PS(#F, p->F)
+#define   PM(F, M) __PS(#F, p->F & (M))
 #define __PSN(S, F) SEQ_printf(m, "%-45s:%14Ld.%06ld\n", S, SPLIT_NS((long long)(F)))
 #define __PN(F) __PSN(#F, F)
 #define   PN(F) __PSN(#F, p->F)
@@ -1011,7 +1012,7 @@ void proc_sched_show_task(struct task_struct *p, struct pid_namespace *ns,
 	P(se.avg.util_avg);
 	P(se.avg.last_update_time);
 	P(se.avg.util_est.ewma);
-	P(se.avg.util_est.enqueued);
+	PM(se.avg.util_est.enqueued, ~UTIL_AVG_UNCHANGED);
 #endif
 #ifdef CONFIG_UCLAMP_TASK
 	__PS("uclamp.min", p->uclamp_req[UCLAMP_MIN].value);
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 3248e24a90b0..2c8a9352590d 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -3499,10 +3499,9 @@ update_tg_cfs_runnable(struct cfs_rq *cfs_rq, struct sched_entity *se, struct cf
 static inline void
 update_tg_cfs_load(struct cfs_rq *cfs_rq, struct sched_entity *se, struct cfs_rq *gcfs_rq)
 {
-	long delta_avg, running_sum, runnable_sum = gcfs_rq->prop_runnable_sum;
+	long delta, running_sum, runnable_sum = gcfs_rq->prop_runnable_sum;
 	unsigned long load_avg;
 	u64 load_sum = 0;
-	s64 delta_sum;
 	u32 divider;
 
 	if (!runnable_sum)
@@ -3549,13 +3548,13 @@ update_tg_cfs_load(struct cfs_rq *cfs_rq, struct sched_entity *se, struct cfs_rq
 	load_sum = (s64)se_weight(se) * runnable_sum;
 	load_avg = div_s64(load_sum, divider);
 
-	delta_sum = load_sum - (s64)se_weight(se) * se->avg.load_sum;
-	delta_avg = load_avg - se->avg.load_avg;
+	delta = load_avg - se->avg.load_avg;
 
 	se->avg.load_sum = runnable_sum;
 	se->avg.load_avg = load_avg;
-	add_positive(&cfs_rq->avg.load_avg, delta_avg);
-	add_positive(&cfs_rq->avg.load_sum, delta_sum);
+
+	add_positive(&cfs_rq->avg.load_avg, delta);
+	cfs_rq->avg.load_sum = cfs_rq->avg.load_avg * divider;
 }
 
 static inline void add_tg_cfs_propagate(struct cfs_rq *cfs_rq, long runnable_sum)
@@ -3766,11 +3765,17 @@ static void attach_entity_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *s
  */
 static void detach_entity_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *se)
 {
+	/*
+	 * cfs_rq->avg.period_contrib can be used for both cfs_rq and se.
+	 * See ___update_load_avg() for details.
+	 */
+	u32 divider = get_pelt_divider(&cfs_rq->avg);
+
 	dequeue_load_avg(cfs_rq, se);
 	sub_positive(&cfs_rq->avg.util_avg, se->avg.util_avg);
-	sub_positive(&cfs_rq->avg.util_sum, se->avg.util_sum);
+	cfs_rq->avg.util_sum = cfs_rq->avg.util_avg * divider;
 	sub_positive(&cfs_rq->avg.runnable_avg, se->avg.runnable_avg);
-	sub_positive(&cfs_rq->avg.runnable_sum, se->avg.runnable_sum);
+	cfs_rq->avg.runnable_sum = cfs_rq->avg.runnable_avg * divider;
 
 	add_tg_cfs_propagate(cfs_rq, -se->avg.load_sum);
 
@@ -3902,7 +3907,7 @@ static inline unsigned long _task_util_est(struct task_struct *p)
 {
 	struct util_est ue = READ_ONCE(p->se.avg.util_est);
 
-	return (max(ue.ewma, ue.enqueued) | UTIL_AVG_UNCHANGED);
+	return max(ue.ewma, (ue.enqueued & ~UTIL_AVG_UNCHANGED));
 }
 
 static inline unsigned long task_util_est(struct task_struct *p)
@@ -4002,7 +4007,7 @@ static inline void util_est_update(struct cfs_rq *cfs_rq,
 	 * Reset EWMA on utilization increases, the moving average is used only
 	 * to smooth utilization decreases.
 	 */
-	ue.enqueued = (task_util(p) | UTIL_AVG_UNCHANGED);
+	ue.enqueued = task_util(p);
 	if (sched_feat(UTIL_EST_FASTUP)) {
 		if (ue.ewma < ue.enqueued) {
 			ue.ewma = ue.enqueued;
@@ -4051,6 +4056,7 @@ static inline void util_est_update(struct cfs_rq *cfs_rq,
 	ue.ewma  += last_ewma_diff;
 	ue.ewma >>= UTIL_EST_WEIGHT_SHIFT;
 done:
+	ue.enqueued |= UTIL_AVG_UNCHANGED;
 	WRITE_ONCE(p->se.avg.util_est, ue);
 
 	trace_sched_util_est_se_tp(&p->se);
@@ -8030,7 +8036,7 @@ static bool __update_blocked_fair(struct rq *rq, bool *done)
 		/* Propagate pending load changes to the parent, if any: */
 		se = cfs_rq->tg->se[cpu];
 		if (se && !skip_blocked_update(se))
-			update_load_avg(cfs_rq_of(se), se, 0);
+			update_load_avg(cfs_rq_of(se), se, UPDATE_TG);
 
 		/*
 		 * There can be a lot of idle CPU cgroups.  Don't let fully
diff --git a/kernel/sched/pelt.h b/kernel/sched/pelt.h
index 1462846d244e..cfe94ffd2b38 100644
--- a/kernel/sched/pelt.h
+++ b/kernel/sched/pelt.h
@@ -42,15 +42,6 @@ static inline u32 get_pelt_divider(struct sched_avg *avg)
 	return LOAD_AVG_MAX - 1024 + avg->period_contrib;
 }
 
-/*
- * When a task is dequeued, its estimated utilization should not be update if
- * its util_avg has not been updated at least once.
- * This flag is used to synchronize util_avg updates with util_est updates.
- * We map this information into the LSB bit of the utilization saved at
- * dequeue time (i.e. util_est.dequeued).
- */
-#define UTIL_AVG_UNCHANGED 0x1
-
 static inline void cfs_se_util_change(struct sched_avg *avg)
 {
 	unsigned int enqueued;
@@ -58,7 +49,7 @@ static inline void cfs_se_util_change(struct sched_avg *avg)
 	if (!sched_feat(UTIL_EST))
 		return;
 
-	/* Avoid store if the flag has been already set */
+	/* Avoid store if the flag has been already reset */
 	enqueued = avg->util_est.enqueued;
 	if (!(enqueued & UTIL_AVG_UNCHANGED))
 		return;
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 828b091501ca..6784f27a3099 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -230,6 +230,7 @@ static void tick_sched_handle(struct tick_sched *ts, struct pt_regs *regs)
 
 #ifdef CONFIG_NO_HZ_FULL
 cpumask_var_t tick_nohz_full_mask;
+EXPORT_SYMBOL_GPL(tick_nohz_full_mask);
 bool tick_nohz_full_running;
 EXPORT_SYMBOL_GPL(tick_nohz_full_running);
 static atomic_t tick_dep_mask;

             reply	other threads:[~2021-06-12 13:02 UTC|newest]

Thread overview: 397+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-12 13:02 Ingo Molnar [this message]
2021-06-12 19:09 ` [GIT PULL] scheduler fixes pr-tracker-bot
  -- strict thread matches above, loose matches on Subject: below --
2024-04-28  8:24 Ingo Molnar
2024-04-28  8:42 ` Ingo Molnar
2024-04-28 19:13   ` Linus Torvalds
2024-04-29  7:29     ` Ingo Molnar
2024-04-28 19:28 ` pr-tracker-bot
2023-10-28 12:23 [GIT PULL] Scheduler changes for v6.7 Ingo Molnar
2024-01-08 14:07 ` [GIT PULL] Scheduler changes for v6.8 Ingo Molnar
2024-01-10 22:19   ` Linus Torvalds
2024-01-10 22:41     ` Linus Torvalds
2024-01-10 22:57       ` Linus Torvalds
2024-01-11 11:09         ` [GIT PULL] scheduler fixes Ingo Molnar
2024-01-11 13:04           ` Vincent Guittot
2023-10-21 15:28 Ingo Molnar
2023-10-21 18:29 ` pr-tracker-bot
2023-10-14 22:02 Ingo Molnar
2023-10-14 22:49 ` pr-tracker-bot
2023-10-08  9:32 Ingo Molnar
2023-10-08 18:06 ` pr-tracker-bot
2023-09-17 17:39 Ingo Molnar
2023-09-17 18:24 ` pr-tracker-bot
2023-09-02 10:09 Ingo Molnar
2023-09-02 16:13 ` pr-tracker-bot
2023-02-17  7:42 Ingo Molnar
2023-02-17 22:47 ` pr-tracker-bot
2023-01-12 14:25 Ingo Molnar
2023-01-12 23:01 ` pr-tracker-bot
2022-08-06 19:21 Ingo Molnar
2022-08-07  0:50 ` pr-tracker-bot
2021-07-11 13:32 Ingo Molnar
2021-07-11 18:16 ` Linus Torvalds
2021-07-11 18:22 ` pr-tracker-bot
2021-05-15  7:50 Ingo Molnar
2021-05-15 17:55 ` pr-tracker-bot
2020-08-15 11:27 Ingo Molnar
2020-08-16  1:55 ` pr-tracker-bot
2020-07-25 10:47 Ingo Molnar
2020-07-25 22:30 ` pr-tracker-bot
2020-04-25  9:28 Ingo Molnar
2020-04-25 19:30 ` pr-tracker-bot
2020-02-15  9:44 Ingo Molnar
2020-02-15 21:25 ` pr-tracker-bot
2019-12-21 16:19 Ingo Molnar
2019-12-21 18:55 ` pr-tracker-bot
2019-11-16 21:37 Ingo Molnar
2019-11-16 22:44 ` Valentin Schneider
2019-11-17  0:10   ` Linus Torvalds
2019-11-17  9:31     ` Ingo Molnar
2019-11-17  9:45   ` Ingo Molnar
2019-11-17 10:19     ` Valentin Schneider
2019-11-17 10:29       ` Ingo Molnar
2019-11-17 16:29       ` Linus Torvalds
2019-11-17 20:43         ` Valentin Schneider
2019-11-18  8:03         ` Ingo Molnar
2019-11-01 17:55 Ingo Molnar
2019-11-01 19:10 ` pr-tracker-bot
2019-11-02  0:15 ` Valentin Schneider
2019-10-12 14:58 Ingo Molnar
2019-10-12 22:35 ` pr-tracker-bot
2019-09-28 12:39 Ingo Molnar
2019-09-28 20:50 ` pr-tracker-bot
2019-09-30 23:45 ` John Stultz
2019-10-01  7:19   ` Peter Zijlstra
2019-10-01 18:15     ` John Stultz
2019-10-01 20:39       ` Joel Fernandes
2019-09-05  8:02 Ingo Molnar
2019-09-05 21:15 ` pr-tracker-bot
2019-04-20  7:33 Ingo Molnar
2019-04-20 19:25 ` pr-tracker-bot
2018-11-03 23:52 Ingo Molnar
2018-11-04  1:38 ` Linus Torvalds
2018-10-20  8:45 Ingo Molnar
2018-10-20 13:28 ` Greg Kroah-Hartman
2018-10-05  9:50 Ingo Molnar
2018-10-05 23:06 ` Greg Kroah-Hartman
2018-09-15 13:20 Ingo Molnar
2018-07-30 17:56 Ingo Molnar
2018-07-21 12:49 Ingo Molnar
2018-03-25  8:57 Ingo Molnar
2018-02-15  1:00 Ingo Molnar
2018-01-12 13:48 Ingo Molnar
2017-12-15 15:35 Ingo Molnar
2017-12-06 22:21 Ingo Molnar
2017-11-26 12:43 Ingo Molnar
2017-10-14 16:11 Ingo Molnar
2017-09-13 17:57 Ingo Molnar
2017-09-12 15:35 Ingo Molnar
2017-07-21 10:18 Ingo Molnar
2017-03-07 20:33 Ingo Molnar
2017-02-28  8:05 Ingo Molnar
2016-11-22 15:38 Ingo Molnar
2016-08-18 20:43 Ingo Molnar
2016-08-12 19:39 Ingo Molnar
2016-07-08 13:53 Ingo Molnar
2016-06-10 12:56 Ingo Molnar
2016-05-25 21:58 Ingo Molnar
2016-05-10 12:00 Ingo Molnar
2016-03-24  7:51 Ingo Molnar
2016-01-08 12:50 Ingo Molnar
2015-10-23 11:38 Ingo Molnar
2015-09-17  8:06 Ingo Molnar
2015-07-04 11:27 Ingo Molnar
2015-05-15  7:19 Ingo Molnar
2015-02-20 13:42 Ingo Molnar
2015-02-06 18:31 Ingo Molnar
2015-01-11  8:47 Ingo Molnar
2014-11-20  7:57 Ingo Molnar
2014-10-31 11:17 Ingo Molnar
2014-09-26 11:32 Ingo Molnar
2014-07-16 11:18 Ingo Molnar
2014-06-01  8:17 Ingo Molnar
2014-05-22  8:10 Ingo Molnar
2014-04-19 10:55 Ingo Molnar
2014-03-16 16:36 Ingo Molnar
2014-03-03 16:29 Ingo Molnar
2014-02-22 19:20 Ingo Molnar
2014-01-31  8:17 Ingo Molnar
2014-01-25  7:26 Ingo Molnar
2013-12-19 16:55 Ingo Molnar
2013-12-17 13:40 Ingo Molnar
2013-12-02 14:43 Ingo Molnar
2013-11-13 20:14 Ingo Molnar
2013-09-25 18:03 Ingo Molnar
2013-09-18 16:19 Ingo Molnar
2013-08-13 16:58 Ingo Molnar
2013-06-20  9:06 Ingo Molnar
2013-05-02  9:06 Ingo Molnar
2013-04-14 15:51 Ingo Molnar
2013-02-26  7:29 Ingo Molnar
2013-02-04 18:26 Ingo Molnar
2012-10-12  9:11 Ingo Molnar
2012-09-13 14:43 Ingo Molnar
2012-08-20  9:12 Ingo Molnar
2012-08-20 17:35 ` Linus Torvalds
2012-08-21  7:56   ` Ingo Molnar
2012-08-03 16:43 Ingo Molnar
2012-07-14  7:57 Ingo Molnar
2012-06-08 20:29 Ingo Molnar
2012-06-05  9:21 Ingo Molnar
2012-04-27  6:39 Ingo Molnar
2012-03-31 17:07 Ingo Molnar
2012-03-29 10:50 Ingo Molnar
2012-02-02 10:07 Ingo Molnar
2012-01-12  6:15 Ingo Molnar
2011-12-17 20:56 Ingo Molnar
2011-12-05 18:49 Ingo Molnar
2011-09-30 18:36 Ingo Molnar
2011-09-30 19:44 ` Thomas Gleixner
2011-07-20 21:06 Ingo Molnar
2011-07-07 18:19 Ingo Molnar
2011-06-15 20:04 Ingo Molnar
2011-06-07 18:01 Ingo Molnar
2011-05-28 16:40 Ingo Molnar
2011-04-16 10:07 Ingo Molnar
2011-04-02 10:31 Ingo Molnar
2011-04-04 15:45 ` Linus Torvalds
2011-04-04 16:08   ` Sisir Koppaka
2011-04-04 16:16   ` Andrew Morton
2011-04-04 19:19   ` Ingo Molnar
2011-04-05  8:14   ` Peter Zijlstra
2011-03-25 13:22 Ingo Molnar
2011-02-03 15:54 Ingo Molnar
2011-01-27 17:31 Ingo Molnar
2011-01-20 20:21 Ingo Molnar
2011-01-07 17:00 Ingo Molnar
2010-12-19 15:27 Ingo Molnar
2010-12-19 20:45 ` Linus Torvalds
2010-12-20 10:15   ` Peter Zijlstra
2010-11-26 13:17 Ingo Molnar
2010-11-16 23:10 Ingo Molnar
2010-10-29  8:35 Ingo Molnar
2010-09-21 19:46 Ingo Molnar
2010-09-11  8:34 Ingo Molnar
2010-08-25 12:00 Ingo Molnar
2010-06-02 12:21 Ingo Molnar
2010-04-04 10:11 Ingo Molnar
2010-03-26 15:23 Ingo Molnar
2010-03-13 16:42 Ingo Molnar
2010-01-31 17:28 Ingo Molnar
2010-01-21 15:35 Ingo Molnar
2009-12-21 18:07 Ingo Molnar
2009-12-18 18:55 Ingo Molnar
2009-12-12  6:15 Ingo Molnar
2009-11-10 17:43 Ingo Molnar
2009-11-04 15:54 Ingo Molnar
2009-10-23 14:43 Ingo Molnar
2009-10-13 18:23 Ingo Molnar
2009-09-28 17:15 Linux 2.6.32-rc1 Martin Schwidefsky
2009-09-28 18:41 ` Eric Dumazet
2009-09-29 20:42   ` Eric Dumazet
2009-09-29 21:17     ` Linus Torvalds
2009-09-29 21:22       ` Arjan van de Ven
2009-09-29 21:56         ` Linus Torvalds
2009-09-30 15:07           ` Arjan van de Ven
2009-09-30 15:57             ` Eric Dumazet
2009-09-30 16:14               ` Linus Torvalds
2009-09-30 18:53                 ` Ingo Molnar
2009-09-30 22:03                   ` [GIT PULL] scheduler fixes Ingo Molnar
2009-10-01  0:42                     ` Linus Torvalds
2009-10-01  0:57                       ` Linus Torvalds
2009-10-01  5:30                         ` Eric Dumazet
2009-10-01  6:11                           ` Ingo Molnar
2009-10-01  6:18                             ` Eric Dumazet
2009-10-01  6:42                               ` Ingo Molnar
2009-10-01  6:59                                 ` Eric Dumazet
2009-10-01  7:28                                 ` Sam Ravnborg
2009-10-02 16:40                         ` Yuhong Bao
2009-10-01  6:05                       ` Ingo Molnar
2009-09-21 13:05 Ingo Molnar
2009-08-04 19:07 Ingo Molnar
2009-06-20 17:00 Ingo Molnar
2009-05-18 14:27 Ingo Molnar
2009-05-18 16:13 ` Linus Torvalds
2009-05-18 16:49   ` Ingo Molnar
2009-05-18 16:58     ` Linus Torvalds
2009-05-18 17:09       ` Ingo Molnar
2009-05-18 19:03         ` Ingo Molnar
2009-05-18 19:16           ` Linus Torvalds
2009-05-18 20:20             ` Ingo Molnar
2009-05-18 22:06               ` Linus Torvalds
2009-05-19 12:27                 ` Rusty Russell
2009-05-24 16:13                 ` Pekka J Enberg
2009-05-24 18:18                   ` Linus Torvalds
2009-05-24 19:13                     ` Pekka Enberg
2009-05-25  5:16                     ` Benjamin Herrenschmidt
2009-05-24 18:34                   ` Yinghai Lu
2009-05-24 19:15                     ` Pekka Enberg
2009-05-25  2:53                     ` Ingo Molnar
2009-05-25  4:45                       ` Yinghai Lu
2009-05-25  5:15                         ` Ingo Molnar
2009-05-25  5:54                           ` Yinghai Lu
2009-05-25  8:47                           ` Pekka J Enberg
2009-05-25 11:25                             ` Nick Piggin
2009-05-25 11:37                               ` Pekka Enberg
2009-05-25 11:41                                 ` Nick Piggin
2009-05-25 11:44                                   ` Pekka J Enberg
2009-05-25 15:01                                     ` Matt Mackall
2009-05-25 16:39                                     ` Linus Torvalds
2009-05-25 18:39                                       ` Pekka Enberg
2009-05-25 19:14                                         ` Linus Torvalds
2009-05-25 19:13                                           ` Pekka Enberg
2009-05-26  1:50                                             ` Yinghai Lu
2009-05-26  7:38                                         ` Nick Piggin
2009-05-28 12:06                                           ` Pekka Enberg
2009-05-28 12:12                                             ` Nick Piggin
2009-05-28 12:24                                               ` Pekka Enberg
2009-05-26  7:33                                       ` Nick Piggin
2009-05-25 12:04                                   ` Pekka J Enberg
2009-05-25 12:12                                     ` Nick Piggin
2009-05-25 14:55                             ` Matt Mackall
2009-05-25 14:58                               ` Pekka Enberg
2009-05-26 17:19                               ` Christoph Lameter
2009-05-28 12:14                                 ` Pekka Enberg
2009-05-26 14:27                             ` Christoph Lameter
2009-05-25  4:52                       ` H. Peter Anvin
2009-05-25  5:05                         ` Ingo Molnar
2009-05-25  5:13                         ` Yinghai Lu
2009-05-25  5:19                       ` Benjamin Herrenschmidt
2009-05-25  7:16                       ` Rusty Russell
2009-04-17  0:59 Ingo Molnar
2009-04-09 15:41 Ingo Molnar
2009-03-03 21:02 [git pull] " Ingo Molnar
2009-02-11 14:41 Ingo Molnar
2009-02-01 15:43 Ingo Molnar
2009-01-30 23:09 Ingo Molnar
2009-01-31 17:11 ` Peter Zijlstra
2009-01-31 17:23   ` Peter Zijlstra
2009-01-31 17:29     ` Peter Zijlstra
2009-01-31 17:49     ` Alexey Zaytsev
2009-01-31 17:54       ` Ingo Molnar
2009-01-31 21:43         ` Alexey Zaytsev
2009-01-31 22:15           ` Ingo Molnar
2009-01-31 18:08       ` Peter Zijlstra
2009-01-31 21:21         ` Alan Cox
2009-01-31 22:19           ` Ingo Molnar
2009-02-02  9:52       ` Peter Zijlstra
2009-02-04 22:28         ` Alexey Zaytsev
2009-02-05  0:12           ` Ingo Molnar
2009-01-15 22:08 [GIT PULL] " Ingo Molnar
2009-01-15 23:17 ` Peter Zijlstra
2009-01-15 23:24   ` Ingo Molnar
2009-01-15 23:33   ` Peter Zijlstra
2009-01-11 14:43 [git pull] " Ingo Molnar
2009-01-14 20:15 ` Andrew Morton
2009-01-14 20:24   ` Peter Zijlstra
2009-01-17  4:40     ` Andrew Morton
2009-01-17  6:29       ` Mike Galbraith
2009-01-17  9:54         ` Mike Galbraith
2009-01-17 10:07           ` Peter Zijlstra
2009-01-17 10:34             ` Mike Galbraith
2009-01-17 12:00               ` Peter Zijlstra
2009-01-17 12:19                 ` Mike Galbraith
2009-01-17 12:43                   ` Andrew Morton
2009-01-17 13:22                     ` Mike Galbraith
2009-01-17 16:01                       ` Ingo Molnar
2009-01-17 16:21                         ` Mike Galbraith
2009-01-17 16:25                           ` Ingo Molnar
2009-01-17 16:37                             ` Mike Galbraith
2009-01-18  7:45                               ` Mike Galbraith
2009-01-18  8:29                         ` Avi Kivity
2009-01-18  8:37                           ` Ingo Molnar
2009-01-18  8:59                             ` Avi Kivity
2009-01-18  9:21                               ` Avi Kivity
2009-01-18  9:41                                 ` Kevin Shanahan
2009-01-18 14:00                                 ` Kevin Shanahan
2009-01-18  9:39                               ` Kevin Shanahan
2009-01-18  9:55                               ` Avi Kivity
2009-01-18 10:36                                 ` Avi Kivity
2009-01-17 12:59                   ` Mike Galbraith
2009-01-17 15:49                     ` Peter Zijlstra
2009-01-18 14:08                 ` Mike Galbraith
2009-01-18 15:28                   ` Peter Zijlstra
2009-01-18 18:54                     ` Mike Galbraith
2009-01-21 12:40                       ` Mike Galbraith
2009-01-17 16:12           ` Ingo Molnar
2009-01-17 16:28             ` Mike Galbraith
2009-01-17  8:52       ` Peter Zijlstra
2009-01-06 16:16 Ingo Molnar
2008-12-10 22:14 Ingo Molnar
2008-11-29 19:53 Ingo Molnar
2008-11-18 14:17 Ingo Molnar
2008-11-12 20:30 Ingo Molnar
2008-11-11 18:25 Ingo Molnar
2008-11-07 16:29 Ingo Molnar
2008-11-05 18:56 Ingo Molnar
2008-10-30 23:31 Ingo Molnar
2008-10-28 10:50 Ingo Molnar
2008-10-15 16:47 Ingo Molnar
2008-09-23 19:35 Ingo Molnar
2008-09-17  9:58 Ingo Molnar
2008-09-08 20:06 Ingo Molnar
2008-09-05 18:49 Ingo Molnar
2008-08-28 11:43 Ingo Molnar
2008-08-25 17:37 Ingo Molnar
2008-08-22 12:25 Ingo Molnar
2008-07-31 21:43 Ingo Molnar
2008-07-31 22:04 ` David Miller
2008-07-31 22:26   ` Ingo Molnar
2008-07-31 22:55     ` David Miller
2008-08-01  8:11       ` David Miller
2008-08-01  9:01         ` Ingo Molnar
2008-08-01  9:13           ` David Miller
2008-07-24 15:12 Ingo Molnar
2008-07-01 20:36 Toralf Förster
2008-07-01 19:58 Ingo Molnar
2008-06-30 15:31 Ingo Molnar
2008-06-30 17:39 ` Dhaval Giani
2008-06-30 18:03   ` Ingo Molnar
2008-06-23 19:43 Ingo Molnar
2008-06-19 15:14 Ingo Molnar
2008-06-12 19:18 Ingo Molnar
2008-05-29 15:45 Ingo Molnar
2008-05-07 12:21 AIM7 40% regression with 2.6.26-rc1 Andi Kleen
2008-05-07 14:36 ` Linus Torvalds
2008-05-07 15:19   ` Linus Torvalds
2008-05-08  2:44     ` Zhang, Yanmin
2008-05-08  3:29       ` Linus Torvalds
2008-05-08  4:08         ` Zhang, Yanmin
2008-05-08  4:17           ` Linus Torvalds
2008-05-08 12:01             ` [patch] speed up / fix the new generic semaphore code (fix AIM7 40% regression with 2.6.26-rc1) Ingo Molnar
2008-05-08 12:28               ` Ingo Molnar
2008-05-08 14:43                 ` Ingo Molnar
2008-05-08 15:10                   ` [git pull] scheduler fixes Ingo Molnar
2008-05-08 15:33                     ` Adrian Bunk
2008-05-08 15:41                       ` Ingo Molnar
2008-05-08 19:42                         ` Adrian Bunk
2008-05-11 11:03                     ` Matthew Wilcox
2008-05-11 11:14                       ` Matthew Wilcox
2008-05-11 11:48                       ` Matthew Wilcox
2008-05-11 12:50                         ` Ingo Molnar
2008-05-11 12:52                           ` Ingo Molnar
2008-05-11 13:02                             ` Matthew Wilcox
2008-05-11 13:26                               ` Matthew Wilcox
2008-05-11 14:00                                 ` Ingo Molnar
2008-05-11 14:18                                   ` Matthew Wilcox
2008-05-11 14:42                                     ` Ingo Molnar
2008-05-11 14:48                                       ` Matthew Wilcox
2008-05-11 15:19                                         ` Ingo Molnar
2008-05-11 15:29                                           ` Matthew Wilcox
2008-05-13 14:11                                             ` Ingo Molnar
2008-05-13 14:21                                               ` Matthew Wilcox
2008-05-13 14:42                                                 ` Ingo Molnar
2008-05-13 15:28                                                   ` Matthew Wilcox
2008-05-13 17:13                                                     ` Ingo Molnar
2008-05-13 17:22                                                       ` Linus Torvalds
2008-05-13 21:05                                                         ` Ingo Molnar
2008-05-11 13:54                               ` Ingo Molnar
2008-05-11 14:22                                 ` Matthew Wilcox
2008-05-11 14:32                                   ` Ingo Molnar
2008-05-11 14:46                                     ` Matthew Wilcox
2008-05-11 16:47                                     ` Linus Torvalds
2008-05-11 13:01                       ` Ingo Molnar
2008-05-11 13:06                         ` Matthew Wilcox
2008-05-11 13:45                           ` Ingo Molnar
2008-05-11 14:10                       ` Sven Wegener
2008-05-05 22:58 Ingo Molnar
2008-05-06  0:14 ` David Miller
2008-05-06  0:24   ` Ingo Molnar
2008-03-19  3:49 Ingo Molnar
2008-03-15  1:47 Ingo Molnar
2008-03-11 15:48 Ingo Molnar
2008-03-11 22:30 ` Rafael J. Wysocki
2008-03-12  1:22   ` Andrew Morton
2008-03-07 15:56 Ingo Molnar
2008-03-04 17:07 Ingo Molnar
2008-02-25 15:45 Ingo Molnar
2007-12-18 14:38 Ingo Molnar
2007-12-07 18:21 Ingo Molnar
2007-12-04  5:08 Linux 2.6.24-rc4 Linus Torvalds
2007-12-04 14:07 ` [local DoS] " Luiz Fernando N. Capitulino
2007-12-04 15:56   ` Linus Torvalds
2007-12-04 16:00     ` Ingo Molnar
2007-12-04 16:18       ` [git pull] scheduler fixes Ingo Molnar
2007-12-04 16:40         ` Luiz Fernando N. Capitulino
2007-12-04 18:28         ` Greg KH
2007-12-04 18:41           ` Luiz Fernando N. Capitulino
2007-12-04 21:04             ` Ingo Molnar
2007-11-28 15:10 Ingo Molnar
2007-11-26 20:35 Ingo Molnar
2007-11-15 20:09 Ingo Molnar
2007-11-09 22:06 Ingo Molnar
2007-10-29 20:39 Ingo Molnar
2007-10-18 19:37 Ingo Molnar
2007-10-17 14:29 Ingo Molnar
2007-10-17 14:59 ` Ingo Molnar

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