From: A L <mail@lechevalier.se>
To: Peter Zijlstra <peterz@infradead.org>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Viresh Kumar <viresh.kumar@linaro.org>,
Julia Lawall <julia.lawall@inria.fr>,
Mel Gorman <mgorman@suse.de>, Ingo Molnar <mingo@redhat.com>,
kernel-janitors@vger.kernel.org,
Juri Lelli <juri.lelli@redhat.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Steven Rostedt <rostedt@goodmis.org>,
Ben Segall <bsegall@google.com>,
Daniel Bristot de Oliveira <bristot@redhat.com>,
linux-kernel@vger.kernel.org,
Valentin Schneider <valentin.schneider@arm.com>,
Gilles Muller <Gilles.Muller@inria.fr>,
srinivas.pandruvada@linux.intel.com,
Linux PM <linux-pm@vger.kernel.org>,
Len Brown <len.brown@intel.com>
Subject: Re: default cpufreq gov, was: [PATCH] sched/fair: check for idle core
Date: Thu, 22 Oct 2020 17:45:11 +0200 (GMT+02:00) [thread overview]
Message-ID: <c232b2.c086afce.17550fc4644@lechevalier.se> (raw)
In-Reply-To: <20201022122949.GW2628@hirez.programming.kicks-ass.net>
---- From: Peter Zijlstra <peterz@infradead.org> -- Sent: 2020-10-22 - 14:29 ----
> On Thu, Oct 22, 2020 at 02:19:29PM +0200, Rafael J. Wysocki wrote:
>> > However I do want to retire ondemand, conservative and also very much
>> > intel_pstate/active mode.
>>
>> I agree in general, but IMO it would not be prudent to do that without making
>> schedutil provide the same level of performance in all of the relevant use
>> cases.
>
> Agreed; I though to have understood we were there already.
Hi,
Currently schedutil does not populate all stats like ondemand does, which can be a problem for some monitoring software.
On my AMD 3000G CPU with kernel-5.9.1:
grep. /sys/devices/system/cpu/cpufreq/policy0/stats/*
With ondemand:
time_in_state:3900000 145179
time_in_state:1600000 9588482
total_trans:177565
trans_table: From : To
trans_table: : 3900000 1600000
trans_table: 3900000: 0 88783
trans_table: 1600000: 88782 0
With schedutil only two file exists:
reset:<empty>
total_trans:216609
I'd really like to have these stats populated with schedutil, if that's possible.
Thanks.
WARNING: multiple messages have this Message-ID (diff)
From: A L <mail@lechevalier.se>
To: Peter Zijlstra <peterz@infradead.org>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Viresh Kumar <viresh.kumar@linaro.org>,
Julia Lawall <julia.lawall@inria.fr>,
Mel Gorman <mgorman@suse.de>, Ingo Molnar <mingo@redhat.com>,
kernel-janitors@vger.kernel.org,
Juri Lelli <juri.lelli@redhat.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Steven Rostedt <rostedt@goodmis.org>,
Ben Segall <bsegall@google.com>,
Daniel Bristot de Oliveira <bristot@redhat.com>,
linux-kernel@vger.kernel.org,
Valentin Schneider <valentin.schneider@arm.com>,
Gilles Muller <Gilles.Muller@inria.fr>,
srinivas.pandruvada@linux.intel.com,
Linux PM <linux-pm@vger.kernel.org>,
Len Brown <len.brown@intel.com>
Subject: Re: default cpufreq gov, was: [PATCH] sched/fair: check for idle core
Date: Thu, 22 Oct 2020 15:45:11 +0000 [thread overview]
Message-ID: <c232b2.c086afce.17550fc4644@lechevalier.se> (raw)
In-Reply-To: <20201022122949.GW2628@hirez.programming.kicks-ass.net>
---- From: Peter Zijlstra <peterz@infradead.org> -- Sent: 2020-10-22 - 14:29 ----
> On Thu, Oct 22, 2020 at 02:19:29PM +0200, Rafael J. Wysocki wrote:
>> > However I do want to retire ondemand, conservative and also very much
>> > intel_pstate/active mode.
>>
>> I agree in general, but IMO it would not be prudent to do that without making
>> schedutil provide the same level of performance in all of the relevant use
>> cases.
>
> Agreed; I though to have understood we were there already.
Hi,
Currently schedutil does not populate all stats like ondemand does, which can be a problem for some monitoring software.
On my AMD 3000G CPU with kernel-5.9.1:
grep. /sys/devices/system/cpu/cpufreq/policy0/stats/*
With ondemand:
time_in_state:3900000 145179
time_in_state:1600000 9588482
total_trans:177565
trans_table: From : To
trans_table: : 3900000 1600000
trans_table: 3900000: 0 88783
trans_table: 1600000: 88782 0
With schedutil only two file exists:
reset:<empty>
total_trans:216609
I'd really like to have these stats populated with schedutil, if that's possible.
Thanks.
next prev parent reply other threads:[~2020-10-22 16:01 UTC|newest]
Thread overview: 134+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-20 16:37 [PATCH] sched/fair: check for idle core Julia Lawall
2020-10-20 16:37 ` Julia Lawall
2020-10-21 7:29 ` Vincent Guittot
2020-10-21 7:29 ` Vincent Guittot
2020-10-21 11:13 ` Peter Zijlstra
2020-10-21 11:13 ` Peter Zijlstra
2020-10-21 12:27 ` Vincent Guittot
2020-10-21 12:27 ` Vincent Guittot
2020-10-21 11:20 ` Mel Gorman
2020-10-21 11:20 ` Mel Gorman
2020-10-21 11:56 ` Julia Lawall
2020-10-21 11:56 ` Julia Lawall
2020-10-21 12:19 ` Peter Zijlstra
2020-10-21 12:19 ` Peter Zijlstra
2020-10-21 12:42 ` Julia Lawall
2020-10-21 12:42 ` Julia Lawall
2020-10-21 12:52 ` Peter Zijlstra
2020-10-21 12:52 ` Peter Zijlstra
2020-10-21 13:43 ` Julia Lawall
2020-10-21 18:18 ` Rafael J. Wysocki
2020-10-21 18:18 ` Rafael J. Wysocki
2020-10-21 18:15 ` Rafael J. Wysocki
2020-10-21 18:15 ` Rafael J. Wysocki
2020-10-21 19:47 ` Julia Lawall
2020-10-21 19:47 ` Julia Lawall
2020-10-21 20:25 ` Rafael J. Wysocki
2020-10-21 20:25 ` Rafael J. Wysocki
2020-10-21 13:10 ` Peter Zijlstra
2020-10-21 13:10 ` Peter Zijlstra
2020-10-21 18:11 ` Rafael J. Wysocki
2020-10-21 18:11 ` Rafael J. Wysocki
2020-10-22 4:41 ` Viresh Kumar
2020-10-22 4:53 ` Viresh Kumar
2020-10-22 7:11 ` Peter Zijlstra
2020-10-22 7:11 ` Peter Zijlstra
2020-10-22 10:47 ` Viresh Kumar
2020-10-22 10:59 ` Viresh Kumar
2020-10-22 11:45 ` Rafael J. Wysocki
2020-10-22 11:45 ` Rafael J. Wysocki
2020-10-22 12:02 ` default cpufreq gov, was: " Peter Zijlstra
2020-10-22 12:02 ` Peter Zijlstra
2020-10-22 12:19 ` Rafael J. Wysocki
2020-10-22 12:19 ` Rafael J. Wysocki
2020-10-22 12:29 ` Peter Zijlstra
2020-10-22 12:29 ` Peter Zijlstra
2020-10-22 14:52 ` Mel Gorman
2020-10-22 14:52 ` Mel Gorman
2020-10-22 14:58 ` Colin Ian King
2020-10-22 14:58 ` Colin Ian King
2020-10-22 15:12 ` Phil Auld
2020-10-22 15:12 ` Phil Auld
2020-10-22 16:35 ` Mel Gorman
2020-10-22 16:35 ` Mel Gorman
2020-10-22 17:59 ` Rafael J. Wysocki
2020-10-22 17:59 ` Rafael J. Wysocki
2020-10-22 20:32 ` Mel Gorman
2020-10-22 20:32 ` Mel Gorman
2020-10-22 20:39 ` Phil Auld
2020-10-22 20:39 ` Phil Auld
2020-10-22 15:25 ` Peter Zijlstra
2020-10-22 15:25 ` Peter Zijlstra
2020-10-22 15:55 ` Rafael J. Wysocki
2020-10-22 15:55 ` Rafael J. Wysocki
2020-10-22 16:29 ` Mel Gorman
2020-10-22 16:29 ` Mel Gorman
2020-10-22 20:10 ` Giovanni Gherdovich
2020-10-22 20:10 ` Giovanni Gherdovich
2020-10-22 20:16 ` Giovanni Gherdovich
2020-10-22 20:16 ` Giovanni Gherdovich
2020-10-23 7:03 ` Peter Zijlstra
2020-10-23 7:03 ` Peter Zijlstra
2020-10-23 17:46 ` Tom Lendacky
2020-10-23 17:46 ` Tom Lendacky
2020-10-26 19:52 ` Fontenot, Nathan
2020-10-26 19:52 ` Fontenot, Nathan
2020-10-22 15:45 ` A L [this message]
2020-10-22 15:45 ` A L
2020-10-22 15:55 ` Vincent Guittot
2020-10-22 15:55 ` Vincent Guittot
2020-10-23 5:11 ` Viresh Kumar
2020-10-23 5:23 ` Viresh Kumar
2020-10-22 16:23 ` [PATCH] cpufreq: Avoid configuring old governors as default with intel_pstate Rafael J. Wysocki
2020-10-22 16:23 ` Rafael J. Wysocki
2020-10-23 6:17 ` Viresh Kumar
2020-10-23 6:29 ` Viresh Kumar
2020-10-23 11:59 ` Rafael J. Wysocki
2020-10-23 11:59 ` Rafael J. Wysocki
2020-10-23 15:15 ` [PATCH v2] " Rafael J. Wysocki
2020-10-23 15:15 ` Rafael J. Wysocki
2020-10-27 3:01 ` Viresh Kumar
2020-10-27 3:13 ` Viresh Kumar
2020-10-27 11:11 ` default cpufreq gov, was: [PATCH] sched/fair: check for idle core Qais Yousef
2020-10-27 11:26 ` Valentin Schneider
2020-10-27 11:42 ` Qais Yousef
2020-10-27 11:48 ` Viresh Kumar
2020-10-27 11:48 ` Viresh Kumar
2020-10-23 6:12 ` Viresh Kumar
2020-10-23 6:24 ` Viresh Kumar
2020-10-23 15:06 ` Rafael J. Wysocki
2020-10-23 15:06 ` Rafael J. Wysocki
2020-10-27 3:01 ` Viresh Kumar
2020-10-27 3:13 ` Viresh Kumar
2020-10-22 11:21 ` AW: " Walter Harms
2020-10-22 11:21 ` Walter Harms
2020-10-21 12:28 ` Mel Gorman
2020-10-21 12:28 ` Mel Gorman
2020-10-21 12:25 ` Vincent Guittot
2020-10-21 12:25 ` Vincent Guittot
2020-10-21 12:47 ` Mel Gorman
2020-10-21 12:47 ` Mel Gorman
2020-10-21 12:56 ` Julia Lawall
2020-10-21 12:56 ` Julia Lawall
2020-10-21 13:18 ` Mel Gorman
2020-10-21 13:18 ` Mel Gorman
2020-10-21 13:24 ` Julia Lawall
2020-10-21 13:24 ` Julia Lawall
2020-10-21 15:08 ` Mel Gorman
2020-10-21 15:08 ` Mel Gorman
2020-10-21 15:18 ` Julia Lawall
2020-10-21 15:18 ` Julia Lawall
2020-10-21 15:23 ` Vincent Guittot
2020-10-21 15:23 ` Vincent Guittot
2020-10-21 15:33 ` Julia Lawall
2020-10-21 15:33 ` Julia Lawall
2020-10-21 15:19 ` Vincent Guittot
2020-10-21 15:19 ` Vincent Guittot
2020-10-21 17:00 ` Mel Gorman
2020-10-21 17:00 ` Mel Gorman
2020-10-21 17:39 ` Julia Lawall
2020-10-21 17:39 ` Julia Lawall
2020-10-21 13:48 ` Julia Lawall
2020-10-21 13:48 ` Julia Lawall
2020-10-21 15:26 ` Mel Gorman
2020-10-21 15:26 ` Mel Gorman
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