From: Yuyang Du <yuyang.du@intel.com>
To: Boqun Feng <boqun.feng@gmail.com>
Cc: mingo@kernel.org, peterz@infradead.org,
linux-kernel@vger.kernel.org, pjt@google.com, bsegall@google.com,
morten.rasmussen@arm.com, vincent.guittot@linaro.org,
dietmar.eggemann@arm.com, umgwanakikbuti@gmail.com,
len.brown@intel.com, rafael.j.wysocki@intel.com,
arjan@linux.intel.com, fengguang.wu@intel.com
Subject: Re: [PATCH v10 6/7] sched: Provide runnable_load_avg back to cfs_rq
Date: Mon, 27 Jul 2015 04:34:09 +0800 [thread overview]
Message-ID: <20150726203409.GH28512@intel.com> (raw)
In-Reply-To: <20150727040420.GC3328@fixme-laptop.cn.ibm.com>
On Mon, Jul 27, 2015 at 12:04:20PM +0800, Boqun Feng wrote:
> > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > > > 1) blocked load is more "difficult" to track, hint, migrate.
> > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> I may not get your point here? Are you saying my patch fails to handle
> the migration or are you just telling me that blocked load tracking need
> to take migration into consideration?
Both, is it so difficult to get?
> If it's the latter one, I want to say that, with blocked load or not, we
> have to handle load_avg in migrations, so *adding* some code to handle
> blocked load is not a big deal.
>
> Please consider this piece of code in update_cfs_rq_load_avg(), which
> decays and updates blocked_load_avg.
At this point of time, you tell me why exactly you want to track the blocked?
next prev parent reply other threads:[~2015-07-27 4:25 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-15 0:04 [PATCH v10 0/7] sched: Rewrite runnable load and utilization average tracking Yuyang Du
2015-07-15 0:04 ` [PATCH v10 1/7] sched: Remove rq's runnable avg Yuyang Du
2015-08-03 17:10 ` [tip:sched/core] sched/fair: " tip-bot for Yuyang Du
2015-07-15 0:04 ` [PATCH v10 2/7] sched: Rewrite runnable load and utilization average tracking Yuyang Du
2015-07-24 16:41 ` Dietmar Eggemann
2015-07-26 20:24 ` Yuyang Du
2015-08-03 17:10 ` [tip:sched/core] sched/fair: " tip-bot for Yuyang Du
2015-07-15 0:04 ` [PATCH v10 3/7] sched: Implement update_blocked_averages() for CONFIG_FAIR_GROUP_SCHED=n Yuyang Du
2015-08-03 17:11 ` [tip:sched/core] sched/fair: " tip-bot for Vincent Guittot
2015-07-15 0:04 ` [PATCH v10 4/7] sched: Init cfs_rq's sched_entity load average Yuyang Du
2015-08-03 17:11 ` [tip:sched/core] sched/fair: Init cfs_rq' s " tip-bot for Yuyang Du
2015-07-15 0:04 ` [PATCH v10 5/7] sched: Remove task and group entity load when they are dead Yuyang Du
2015-08-03 17:11 ` [tip:sched/core] sched/fair: " tip-bot for Yuyang Du
2015-07-15 0:04 ` [PATCH v10 6/7] sched: Provide runnable_load_avg back to cfs_rq Yuyang Du
2015-07-21 1:08 ` Boqun Feng
2015-07-21 0:44 ` Yuyang Du
2015-07-21 10:18 ` Boqun Feng
2015-07-21 10:29 ` Boqun Feng
2015-07-26 18:43 ` Yuyang Du
2015-07-27 3:21 ` Boqun Feng
2015-07-26 19:56 ` Yuyang Du
2015-07-27 4:04 ` Boqun Feng
2015-07-26 20:34 ` Yuyang Du [this message]
2015-07-27 5:16 ` Boqun Feng
2015-07-27 3:29 ` Boqun Feng
2015-07-22 2:19 ` Boqun Feng
2015-07-26 19:45 ` Yuyang Du
2015-08-03 17:12 ` [tip:sched/core] sched/fair: " tip-bot for Yuyang Du
2015-07-15 0:04 ` [PATCH v10 7/7] sched: Clean up load average references Yuyang Du
2015-07-24 16:41 ` Dietmar Eggemann
2015-07-26 20:31 ` Yuyang Du
2015-08-03 17:12 ` [tip:sched/core] sched/fair: " tip-bot for Yuyang Du
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