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From: Tim Chen <tim.c.chen@linux.intel.com>
To: Aaron Lu <aaron.lu@linux.alibaba.com>
Cc: "Peter Zijlstra" <peterz@infradead.org>,
	"Julien Desfossez" <jdesfossez@digitalocean.com>,
	"Li, Aubrey" <aubrey.li@linux.intel.com>,
	"Aubrey Li" <aubrey.intel@gmail.com>,
	"Subhra Mazumdar" <subhra.mazumdar@oracle.com>,
	"Vineeth Remanan Pillai" <vpillai@digitalocean.com>,
	"Nishanth Aravamudan" <naravamudan@digitalocean.com>,
	"Ingo Molnar" <mingo@kernel.org>,
	"Thomas Gleixner" <tglx@linutronix.de>,
	"Paul Turner" <pjt@google.com>,
	"Linus Torvalds" <torvalds@linux-foundation.org>,
	"Linux List Kernel Mailing" <linux-kernel@vger.kernel.org>,
	"Frédéric Weisbecker" <fweisbec@gmail.com>,
	"Kees Cook" <keescook@chromium.org>,
	"Greg Kerr" <kerrnel@google.com>, "Phil Auld" <pauld@redhat.com>,
	"Valentin Schneider" <valentin.schneider@arm.com>,
	"Mel Gorman" <mgorman@techsingularity.net>,
	"Pawan Gupta" <pawan.kumar.gupta@linux.intel.com>,
	"Paolo Bonzini" <pbonzini@redhat.com>
Subject: Re: [RFC PATCH v3 00/16] Core scheduling v3
Date: Thu, 8 Aug 2019 14:42:57 -0700	[thread overview]
Message-ID: <b7a83fcb-5c34-9794-5688-55c52697fd84@linux.intel.com> (raw)
In-Reply-To: <70d1ff90-9be9-7b05-f1ff-e751f266183b@linux.intel.com>

On 8/8/19 10:27 AM, Tim Chen wrote:
> On 8/7/19 11:47 PM, Aaron Lu wrote:
>> On Tue, Aug 06, 2019 at 02:19:57PM -0700, Tim Chen wrote:
>>> +void account_core_idletime(struct task_struct *p, u64 exec)
>>> +{
>>> +	const struct cpumask *smt_mask;
>>> +	struct rq *rq;
>>> +	bool force_idle, refill;
>>> +	int i, cpu;
>>> +
>>> +	rq = task_rq(p);
>>> +	if (!sched_core_enabled(rq) || !p->core_cookie)
>>> +		return;
>>
>> I don't see why return here for untagged task. Untagged task can also
>> preempt tagged task and force a CPU thread enter idle state.
>> Untagged is just another tag to me, unless we want to allow untagged
>> task to coschedule with a tagged task.
> 
> You are right.  This needs to be fixed.
> 

Here's the updated patchset, including Aaron's fix and also
added accounting of force idle time by deadline and rt tasks.

Tim

-----------------patch 1----------------------
From 730dbb125f5f67c75f97f6be154d382767810f8b Mon Sep 17 00:00:00 2001
From: Aaron Lu <aaron.lu@linux.alibaba.com>
Date: Thu, 8 Aug 2019 08:57:46 -0700
Subject: [PATCH 1/3 v2] sched: Fix incorrect rq tagged as forced idle

Incorrect run queue was tagged as forced idle.
Tag the correct one.

Signed-off-by: Aaron Lu <aaron.lu@linux.alibaba.com>
Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
---
 kernel/sched/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index e3cd9cb17809..50453e1329f3 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -3903,7 +3903,7 @@ next_class:;
 		WARN_ON_ONCE(!rq_i->core_pick);
 
 		if (is_idle_task(rq_i->core_pick) && rq_i->nr_running)
-			rq->core_forceidle = true;
+			rq_i->core_forceidle = true;
 
 		rq_i->core_pick->core_occupation = occ;
 
-- 
2.20.1

--------------patch 2------------------------
From 263ceeb40843b8ca3a91f1b268bec2b836d4986b Mon Sep 17 00:00:00 2001
From: Tim Chen <tim.c.chen@linux.intel.com>
Date: Wed, 24 Jul 2019 13:58:18 -0700
Subject: [PATCH 2/3 v2] sched: Move sched fair prio comparison to fair.c

Consolidate the task priority comparison of the fair class
to fair.c.  A simple code reorganization and there are no functional changes.

Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
---
 kernel/sched/core.c  | 21 ++-------------------
 kernel/sched/fair.c  | 21 +++++++++++++++++++++
 kernel/sched/sched.h |  1 +
 3 files changed, 24 insertions(+), 19 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 50453e1329f3..0f893853766c 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -105,25 +105,8 @@ static inline bool prio_less(struct task_struct *a, struct task_struct *b)
 	if (pa == -1) /* dl_prio() doesn't work because of stop_class above */
 		return !dl_time_before(a->dl.deadline, b->dl.deadline);
 
-	if (pa == MAX_RT_PRIO + MAX_NICE)  { /* fair */
-		u64 a_vruntime = a->se.vruntime;
-		u64 b_vruntime = b->se.vruntime;
-
-		/*
-		 * Normalize the vruntime if tasks are in different cpus.
-		 */
-		if (task_cpu(a) != task_cpu(b)) {
-			b_vruntime -= task_cfs_rq(b)->min_vruntime;
-			b_vruntime += task_cfs_rq(a)->min_vruntime;
-
-			trace_printk("(%d:%Lu,%Lu,%Lu) <> (%d:%Lu,%Lu,%Lu)\n",
-				     a->pid, a_vruntime, a->se.vruntime, task_cfs_rq(a)->min_vruntime,
-				     b->pid, b_vruntime, b->se.vruntime, task_cfs_rq(b)->min_vruntime);
-
-		}
-
-		return !((s64)(a_vruntime - b_vruntime) <= 0);
-	}
+	if (pa == MAX_RT_PRIO + MAX_NICE) /* fair */
+		return prio_less_fair(a, b);
 
 	return false;
 }
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 02bff10237d4..e289b6e1545b 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -602,6 +602,27 @@ static inline u64 calc_delta_fair(u64 delta, struct sched_entity *se)
 	return delta;
 }
 
+bool prio_less_fair(struct task_struct *a, struct task_struct *b)
+{
+	u64 a_vruntime = a->se.vruntime;
+	u64 b_vruntime = b->se.vruntime;
+
+	/*
+	 * Normalize the vruntime if tasks are in different cpus.
+	 */
+	if (task_cpu(a) != task_cpu(b)) {
+		b_vruntime -= task_cfs_rq(b)->min_vruntime;
+		b_vruntime += task_cfs_rq(a)->min_vruntime;
+
+		trace_printk("(%d:%Lu,%Lu,%Lu) <> (%d:%Lu,%Lu,%Lu)\n",
+			     a->pid, a_vruntime, a->se.vruntime, task_cfs_rq(a)->min_vruntime,
+			     b->pid, b_vruntime, b->se.vruntime, task_cfs_rq(b)->min_vruntime);
+
+	}
+
+	return !((s64)(a_vruntime - b_vruntime) <= 0);
+}
+
 /*
  * The idea is to set a period in which each task runs once.
  *
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index e91c188a452c..bdabe7ce1152 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -1015,6 +1015,7 @@ static inline raw_spinlock_t *rq_lockp(struct rq *rq)
 }
 
 extern void queue_core_balance(struct rq *rq);
+extern bool prio_less_fair(struct task_struct *a, struct task_struct *b);
 
 #else /* !CONFIG_SCHED_CORE */
 
-- 
2.20.1

------------------------patch 3---------------------------
From 5318e23c741a832140effbaf2f79fdf4b08f883c Mon Sep 17 00:00:00 2001
From: Tim Chen <tim.c.chen@linux.intel.com>
Date: Tue, 6 Aug 2019 12:50:45 -0700
Subject: [PATCH 3/3 v2] sched: Enforce fairness between cpu threads

CPU thread could be suppressed by its sibling for extended time.
Implement a budget for force idling, making all CPU threads have
equal chance to run.

Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
---
 kernel/sched/core.c     | 43 +++++++++++++++++++++++++++++++++++++++++
 kernel/sched/deadline.c |  1 +
 kernel/sched/fair.c     | 11 +++++++++++
 kernel/sched/rt.c       |  1 +
 kernel/sched/sched.h    |  4 ++++
 5 files changed, 60 insertions(+)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 0f893853766c..de83dcb84495 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -207,6 +207,46 @@ static struct task_struct *sched_core_next(struct task_struct *p, unsigned long
 	return p;
 }
 
+void account_core_idletime(struct task_struct *p, u64 exec)
+{
+	const struct cpumask *smt_mask;
+	struct rq *rq;
+	bool force_idle, refill;
+	int i, cpu;
+
+	rq = task_rq(p);
+	if (!sched_core_enabled(rq))
+		return;
+
+	cpu = task_cpu(p);
+	force_idle = false;
+	refill = true;
+	smt_mask = cpu_smt_mask(cpu);
+
+	for_each_cpu(i, smt_mask) {
+		if (cpu == i || cpu_is_offline(i))
+			continue;
+
+		if (cpu_rq(i)->core_forceidle)
+			force_idle = true;
+
+		/* Only refill if everyone has run out of allowance */
+		if (cpu_rq(i)->core_idle_allowance > 0)
+			refill = false;
+	}
+
+	if (force_idle)
+		rq->core_idle_allowance -= (s64) exec;
+
+	if (rq->core_idle_allowance < 0 && refill) {
+		for_each_cpu(i, smt_mask) {
+			if (cpu_is_offline(i))
+				continue;
+			cpu_rq(i)->core_idle_allowance += (s64) SCHED_IDLE_ALLOWANCE;
+		}
+	}
+}
+
 /*
  * The static-key + stop-machine variable are needed such that:
  *
@@ -273,6 +313,8 @@ void sched_core_put(void)
 
 static inline void sched_core_enqueue(struct rq *rq, struct task_struct *p) { }
 static inline void sched_core_dequeue(struct rq *rq, struct task_struct *p) { }
+static inline void account_core_idletime(struct task_struct *p, u64 exec) { }
+{
 
 #endif /* CONFIG_SCHED_CORE */
 
@@ -6773,6 +6815,7 @@ void __init sched_init(void)
 		rq->core_enabled = 0;
 		rq->core_tree = RB_ROOT;
 		rq->core_forceidle = false;
+		rq->core_idle_allowance = (s64) SCHED_IDLE_ALLOWANCE;
 
 		rq->core_cookie = 0UL;
 #endif
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index 64fc444f44f9..684c64a95ec7 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -1175,6 +1175,7 @@ static void update_curr_dl(struct rq *rq)
 
 	curr->se.sum_exec_runtime += delta_exec;
 	account_group_exec_runtime(curr, delta_exec);
+	account_core_idletime(curr, delta_exec);
 
 	curr->se.exec_start = now;
 	cgroup_account_cputime(curr, delta_exec);
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index e289b6e1545b..f65270784c28 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -611,6 +611,16 @@ bool prio_less_fair(struct task_struct *a, struct task_struct *b)
 	 * Normalize the vruntime if tasks are in different cpus.
 	 */
 	if (task_cpu(a) != task_cpu(b)) {
+
+		if (a->core_cookie != b->core_cookie) {
+			/*
+			 * Will be force idling one thread,
+			 * pick the thread that has more allowance.
+			 */
+			return (task_rq(a)->core_idle_allowance <
+				task_rq(b)->core_idle_allowance) ? true : false;
+		}
+
 		b_vruntime -= task_cfs_rq(b)->min_vruntime;
 		b_vruntime += task_cfs_rq(a)->min_vruntime;
 
@@ -817,6 +827,7 @@ static void update_curr(struct cfs_rq *cfs_rq)
 		trace_sched_stat_runtime(curtask, delta_exec, curr->vruntime);
 		cgroup_account_cputime(curtask, delta_exec);
 		account_group_exec_runtime(curtask, delta_exec);
+		account_core_idletime(curtask, delta_exec);
 	}
 
 	account_cfs_rq_runtime(cfs_rq, delta_exec);
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index 81557224548c..6f18e1455778 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -971,6 +971,7 @@ static void update_curr_rt(struct rq *rq)
 
 	curr->se.sum_exec_runtime += delta_exec;
 	account_group_exec_runtime(curr, delta_exec);
+	account_core_idletime(curr, delta_exec);
 
 	curr->se.exec_start = now;
 	cgroup_account_cputime(curr, delta_exec);
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index bdabe7ce1152..927334b2078c 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -963,6 +963,7 @@ struct rq {
 	struct task_struct	*core_pick;
 	unsigned int		core_enabled;
 	unsigned int		core_sched_seq;
+	s64			core_idle_allowance;
 	struct rb_root		core_tree;
 	bool			core_forceidle;
 
@@ -999,6 +1000,8 @@ static inline int cpu_of(struct rq *rq)
 }
 
 #ifdef CONFIG_SCHED_CORE
+#define SCHED_IDLE_ALLOWANCE	5000000 	/* 5 msec */
+
 DECLARE_STATIC_KEY_FALSE(__sched_core_enabled);
 
 static inline bool sched_core_enabled(struct rq *rq)
@@ -1016,6 +1019,7 @@ static inline raw_spinlock_t *rq_lockp(struct rq *rq)
 
 extern void queue_core_balance(struct rq *rq);
 extern bool prio_less_fair(struct task_struct *a, struct task_struct *b);
+extern void  account_core_idletime(struct task_struct *p, u64 exec);
 
 #else /* !CONFIG_SCHED_CORE */
 
-- 
2.20.1


  reply	other threads:[~2019-08-08 21:43 UTC|newest]

Thread overview: 161+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-29 20:36 Vineeth Remanan Pillai
2019-05-29 20:36 ` [RFC PATCH v3 01/16] stop_machine: Fix stop_cpus_in_progress ordering Vineeth Remanan Pillai
2019-08-08 10:54   ` [tip:sched/core] " tip-bot for Peter Zijlstra
2019-08-26 16:19   ` [RFC PATCH v3 01/16] " mark gross
2019-08-26 16:59     ` Peter Zijlstra
2019-05-29 20:36 ` [RFC PATCH v3 02/16] sched: Fix kerneldoc comment for ia64_set_curr_task Vineeth Remanan Pillai
2019-08-08 10:55   ` [tip:sched/core] " tip-bot for Peter Zijlstra
2019-08-26 16:20   ` [RFC PATCH v3 02/16] " mark gross
2019-05-29 20:36 ` [RFC PATCH v3 03/16] sched: Wrap rq::lock access Vineeth Remanan Pillai
2019-05-29 20:36 ` [RFC PATCH v3 04/16] sched/{rt,deadline}: Fix set_next_task vs pick_next_task Vineeth Remanan Pillai
2019-08-08 10:55   ` [tip:sched/core] " tip-bot for Peter Zijlstra
2019-05-29 20:36 ` [RFC PATCH v3 05/16] sched: Add task_struct pointer to sched_class::set_curr_task Vineeth Remanan Pillai
2019-08-08 10:57   ` [tip:sched/core] " tip-bot for Peter Zijlstra
2019-05-29 20:36 ` [RFC PATCH v3 06/16] sched/fair: Export newidle_balance() Vineeth Remanan Pillai
2019-08-08 10:58   ` [tip:sched/core] sched/fair: Expose newidle_balance() tip-bot for Peter Zijlstra
2019-05-29 20:36 ` [RFC PATCH v3 07/16] sched: Allow put_prev_task() to drop rq->lock Vineeth Remanan Pillai
2019-08-08 10:58   ` [tip:sched/core] " tip-bot for Peter Zijlstra
2019-08-26 16:51   ` [RFC PATCH v3 07/16] " mark gross
2019-05-29 20:36 ` [RFC PATCH v3 08/16] sched: Rework pick_next_task() slow-path Vineeth Remanan Pillai
2019-08-08 10:59   ` [tip:sched/core] " tip-bot for Peter Zijlstra
2019-08-26 17:01   ` [RFC PATCH v3 08/16] " mark gross
2019-05-29 20:36 ` [RFC PATCH v3 09/16] sched: Introduce sched_class::pick_task() Vineeth Remanan Pillai
2019-08-26 17:14   ` mark gross
2019-05-29 20:36 ` [RFC PATCH v3 10/16] sched: Core-wide rq->lock Vineeth Remanan Pillai
2019-05-31 11:08   ` Peter Zijlstra
2019-05-31 15:23     ` Vineeth Pillai
2019-05-29 20:36 ` [RFC PATCH v3 11/16] sched: Basic tracking of matching tasks Vineeth Remanan Pillai
2019-08-26 20:59   ` mark gross
2019-05-29 20:36 ` [RFC PATCH v3 12/16] sched: A quick and dirty cgroup tagging interface Vineeth Remanan Pillai
2019-05-29 20:36 ` [RFC PATCH v3 13/16] sched: Add core wide task selection and scheduling Vineeth Remanan Pillai
2019-06-07 23:36   ` Pawan Gupta
2019-05-29 20:36 ` [RFC PATCH v3 14/16] sched/fair: Add a few assertions Vineeth Remanan Pillai
2019-05-29 20:36 ` [RFC PATCH v3 15/16] sched: Trivial forced-newidle balancer Vineeth Remanan Pillai
2019-05-29 20:36 ` [RFC PATCH v3 16/16] sched: Debug bits Vineeth Remanan Pillai
2019-05-29 21:02   ` Peter Oskolkov
2019-05-30 14:04 ` [RFC PATCH v3 00/16] Core scheduling v3 Aubrey Li
2019-05-30 14:17   ` Julien Desfossez
2019-05-31  4:55     ` Aubrey Li
2019-05-31  3:01   ` Aaron Lu
2019-05-31  5:12     ` Aubrey Li
2019-05-31  6:09       ` Aaron Lu
2019-05-31  6:53         ` Aubrey Li
2019-05-31  7:44           ` Aaron Lu
2019-05-31  8:26             ` Aubrey Li
2019-05-31 21:08     ` Julien Desfossez
2019-06-06 15:26       ` Julien Desfossez
2019-06-12  1:52         ` Li, Aubrey
2019-06-12 16:06           ` Julien Desfossez
2019-06-12 16:33         ` Julien Desfossez
2019-06-13  0:03           ` Subhra Mazumdar
2019-06-13  3:22             ` Julien Desfossez
2019-06-17  2:51               ` Aubrey Li
2019-06-19 18:33                 ` Julien Desfossez
2019-07-18 10:07                   ` Aaron Lu
2019-07-18 23:27                     ` Tim Chen
2019-07-19  5:52                       ` Aaron Lu
2019-07-19 11:48                         ` Aubrey Li
2019-07-19 18:33                         ` Tim Chen
2019-07-22 10:26                     ` Aubrey Li
2019-07-22 10:43                       ` Aaron Lu
2019-07-23  2:52                         ` Aubrey Li
2019-07-25 14:30                       ` Aaron Lu
2019-07-25 14:31                         ` [RFC PATCH 1/3] wrapper for cfs_rq->min_vruntime Aaron Lu
2019-07-25 14:32                         ` [PATCH 2/3] core vruntime comparison Aaron Lu
2019-08-06 14:17                           ` Peter Zijlstra
2019-07-25 14:33                         ` [PATCH 3/3] temp hack to make tick based schedule happen Aaron Lu
2019-07-25 21:42                         ` [RFC PATCH v3 00/16] Core scheduling v3 Li, Aubrey
2019-07-26 15:21                         ` Julien Desfossez
2019-07-26 21:29                           ` Tim Chen
2019-07-31  2:42                           ` Li, Aubrey
2019-08-02 15:37                             ` Julien Desfossez
2019-08-05 15:55                               ` Tim Chen
2019-08-06  3:24                                 ` Aaron Lu
2019-08-06  6:56                                   ` Aubrey Li
2019-08-06  7:04                                     ` Aaron Lu
2019-08-06 12:24                                       ` Vineeth Remanan Pillai
2019-08-06 13:49                                         ` Aaron Lu
2019-08-06 16:14                                           ` Vineeth Remanan Pillai
2019-08-06 14:16                                         ` Peter Zijlstra
2019-08-06 15:53                                           ` Vineeth Remanan Pillai
2019-08-06 17:03                                   ` Tim Chen
2019-08-06 17:12                                     ` Peter Zijlstra
2019-08-06 21:19                                       ` Tim Chen
2019-08-08  6:47                                         ` Aaron Lu
2019-08-08 17:27                                           ` Tim Chen
2019-08-08 21:42                                             ` Tim Chen [this message]
2019-08-10 14:15                                               ` Aaron Lu
2019-08-12 15:38                                                 ` Vineeth Remanan Pillai
2019-08-13  2:24                                                   ` Aaron Lu
2019-08-08 12:55                                 ` Aaron Lu
2019-08-08 16:39                                   ` Tim Chen
2019-08-10 14:18                                     ` Aaron Lu
2019-08-05 20:09                               ` Phil Auld
2019-08-06 13:54                                 ` Aaron Lu
2019-08-06 14:17                                   ` Phil Auld
2019-08-06 14:41                                     ` Aaron Lu
2019-08-06 14:55                                       ` Phil Auld
2019-08-07  8:58                               ` Dario Faggioli
2019-08-07 17:10                                 ` Tim Chen
2019-08-15 16:09                                   ` Dario Faggioli
2019-08-16  2:33                                     ` Aaron Lu
2019-09-05  1:44                                   ` Julien Desfossez
2019-09-06 22:17                                     ` Tim Chen
2019-09-18 21:27                                     ` Tim Chen
2019-09-06 18:30                                   ` Tim Chen
2019-09-11 14:02                                     ` Aaron Lu
2019-09-11 16:19                                       ` Tim Chen
2019-09-11 16:47                                         ` Vineeth Remanan Pillai
2019-09-12 12:35                                           ` Aaron Lu
2019-09-12 17:29                                             ` Tim Chen
2019-09-13 14:15                                               ` Aaron Lu
2019-09-13 17:13                                                 ` Tim Chen
2019-09-30 11:53                                             ` Vineeth Remanan Pillai
2019-10-02 20:48                                               ` Vineeth Remanan Pillai
2019-10-10 13:54                                                 ` Aaron Lu
2019-10-10 14:29                                                   ` Vineeth Remanan Pillai
2019-10-11  7:33                                                     ` Aaron Lu
2019-10-11 11:32                                                       ` Vineeth Remanan Pillai
2019-10-11 12:01                                                         ` Aaron Lu
2019-10-11 12:10                                                           ` Vineeth Remanan Pillai
2019-10-12  3:55                                                             ` Aaron Lu
2019-10-13 12:44                                                               ` Vineeth Remanan Pillai
2019-10-14  9:57                                                                 ` Aaron Lu
2019-10-21 12:30                                                                   ` Vineeth Remanan Pillai
2019-09-12 12:04                                         ` Aaron Lu
2019-09-12 17:05                                           ` Tim Chen
2019-09-13 13:57                                             ` Aaron Lu
2019-09-12 23:12                                           ` Aubrey Li
2019-09-15 14:14                                             ` Aaron Lu
2019-09-18  1:33                                               ` Aubrey Li
2019-09-18 20:40                                                 ` Tim Chen
2019-09-18 22:16                                                   ` Aubrey Li
2019-09-30 14:36                                                     ` Vineeth Remanan Pillai
2019-10-29 20:40                                                   ` Julien Desfossez
2019-11-01 21:42                                                     ` Tim Chen
2019-10-29  9:11                                               ` Dario Faggioli
2019-10-29  9:15                                                 ` Dario Faggioli
2019-10-29  9:16                                                 ` Dario Faggioli
2019-10-29  9:17                                                 ` Dario Faggioli
2019-10-29  9:18                                                 ` Dario Faggioli
2019-10-29  9:18                                                 ` Dario Faggioli
2019-10-29  9:19                                                 ` Dario Faggioli
2019-10-29  9:20                                                 ` Dario Faggioli
2019-10-29 20:34                                                   ` Julien Desfossez
2019-11-15 16:30                                                     ` Dario Faggioli
2019-09-25  2:40                                     ` Aubrey Li
2019-09-25 17:24                                       ` Tim Chen
2019-09-25 22:07                                         ` Aubrey Li
2019-09-30 15:22                                     ` Julien Desfossez
2019-08-27 21:14 ` Matthew Garrett
2019-08-27 21:50   ` Peter Zijlstra
2019-08-28 15:30     ` Phil Auld
2019-08-28 16:01       ` Peter Zijlstra
2019-08-28 16:37         ` Tim Chen
2019-08-29 14:30         ` Phil Auld
2019-08-29 14:38           ` Peter Zijlstra
2019-09-10 14:27             ` Julien Desfossez
2019-09-18 21:12               ` Tim Chen
2019-08-28 15:59     ` Tim Chen
2019-08-28 16:16       ` Peter Zijlstra
2019-08-27 23:24   ` Aubrey Li

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