From: Prashant Malani <pmalani@google.com>
To: Beata Michalska <beata.michalska@arm.com>
Cc: Viresh Kumar <viresh.kumar@linaro.org>,
"Rafael J. Wysocki" <rafael@kernel.org>,
Jie Zhan <zhanjie9@hisilicon.com>,
Ionela Voinescu <ionela.voinescu@arm.com>,
Ben Segall <bsegall@google.com>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Ingo Molnar <mingo@redhat.com>,
Juri Lelli <juri.lelli@redhat.com>,
open list <linux-kernel@vger.kernel.org>,
"open list:CPU FREQUENCY SCALING FRAMEWORK"
<linux-pm@vger.kernel.org>, Mel Gorman <mgorman@suse.de>,
Peter Zijlstra <peterz@infradead.org>,
Steven Rostedt <rostedt@goodmis.org>,
Valentin Schneider <vschneid@redhat.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
z00813676 <zhenglifeng1@huawei.com>,
sudeep.holla@arm.com
Subject: Re: [PATCH v2 2/2] cpufreq: CPPC: Dont read counters for idle CPUs
Date: Thu, 31 Jul 2025 09:51:51 -0700 [thread overview]
Message-ID: <CAFivqm+kbRbJsJ_Obb4bV6fgxbqAwOndLUCDwHvWWnpMYoNoNw@mail.gmail.com> (raw)
In-Reply-To: <aIso4kLtChiQkBjH@arm.com>
HI Beata,
On Thu, 31 Jul 2025 at 01:27, Beata Michalska <beata.michalska@arm.com> wrote:
> In the meantime I'm still trying to figure out smht to mitigate the issues with
> the numbers we get from counters after waking up the CPU.
My attempt at that is here: [1]
It's been proposed before, but it's increasing the delay between samples.
[1] https://lore.kernel.org/linux-pm/20250730220812.53098-1-pmalani@google.com/
BR,
-Prashant
next prev parent reply other threads:[~2025-07-31 16:52 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-19 0:09 [PATCH v2 0/2] cpufreq: CPPC: idle cpu perf handling Prashant Malani
2025-06-19 0:09 ` [PATCH v2 1/2] sched: Expose idle_cpu() to modules Prashant Malani
2025-06-19 0:09 ` [PATCH v2 2/2] cpufreq: CPPC: Dont read counters for idle CPUs Prashant Malani
2025-06-20 3:53 ` Jie Zhan
2025-06-20 5:07 ` Prashant Malani
2025-06-26 18:42 ` Prashant Malani
2025-06-27 7:54 ` Jie Zhan
2025-06-27 17:07 ` Prashant Malani
2025-07-02 18:38 ` Prashant Malani
2025-07-03 9:29 ` Beata Michalska
2025-07-07 8:32 ` Beata Michalska
2025-07-09 17:25 ` Prashant Malani
2025-07-09 22:49 ` Prashant Malani
2025-07-14 9:30 ` Beata Michalska
2025-07-15 6:28 ` Prashant Malani
2025-07-21 17:00 ` Rafael J. Wysocki
2025-07-21 19:40 ` Prashant Malani
2025-07-22 3:27 ` Viresh Kumar
2025-07-22 6:02 ` Prashant Malani
2025-07-30 7:31 ` Prashant Malani
2025-07-31 8:27 ` Beata Michalska
2025-07-31 11:13 ` Viresh Kumar
2025-07-31 20:23 ` Beata Michalska
2025-08-01 4:43 ` Viresh Kumar
2025-08-07 0:19 ` Prashant Malani
2025-08-11 6:05 ` Viresh Kumar
2025-08-11 18:43 ` Prashant Malani
2025-08-11 19:19 ` Rafael J. Wysocki
2025-08-11 20:01 ` Prashant Malani
2025-08-14 11:48 ` Rafael J. Wysocki
2025-08-15 5:12 ` Prashant Malani
2025-08-16 8:25 ` Prashant Malani
2025-08-13 10:12 ` Beata Michalska
2025-07-31 16:51 ` Prashant Malani [this message]
2025-07-31 20:30 ` Beata Michalska
2025-08-01 9:16 ` Prashant Malani
2025-08-04 20:55 ` Prashant Malani
2025-08-06 7:21 ` Beata Michalska
2025-08-07 0:01 ` Prashant Malani
2025-08-07 10:24 ` Beata Michalska
2025-08-08 2:14 ` Prashant Malani
2025-08-13 10:15 ` Beata Michalska
2025-08-13 22:25 ` Prashant Malani
2025-07-07 8:35 ` Beata Michalska
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