From: Peter Zijlstra <peterz@infradead.org>
To: Namhyung Kim <namhyung@kernel.org>
Cc: "Liang, Kan" <kan.liang@linux.intel.com>,
Ingo Molnar <mingo@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Ravi Bangoria <ravi.bangoria@amd.com>,
Stephane Eranian <eranian@google.com>,
Ian Rogers <irogers@google.com>,
Mingwei Zhang <mizhang@google.com>
Subject: Re: [PATCH v2] perf/core: Optimize event reschedule for a PMU
Date: Mon, 5 Aug 2024 11:15:36 +0200 [thread overview]
Message-ID: <20240805091536.GJ37996@noisy.programming.kicks-ass.net> (raw)
In-Reply-To: <CAM9d7ch=-cp-wxLUXf1=EizAeHMG_zneSqp0owdbKp__K0ZeCw@mail.gmail.com>
On Sun, Aug 04, 2024 at 11:39:18PM -0700, Namhyung Kim wrote:
> On Sat, Aug 3, 2024 at 10:08 AM Namhyung Kim <namhyung@kernel.org> wrote:
> >
> > On Sat, Aug 3, 2024 at 3:32 AM Peter Zijlstra <peterz@infradead.org> wrote:
> > >
> > > On Fri, Aug 02, 2024 at 09:11:23PM +0200, Peter Zijlstra wrote:
> > >
> > > > But I'll have to continue staring at this later.
> > >
> > > OK, I have the below, which boots and seems able to do:
> > >
> > > perf stat -ae power/energy-pkg/ -- sleep 1
> > >
> > > and
> > >
> > > perf top
> > >
> > > also still works, so it must be perfect, right, right?
> >
> > I really hope so. :) I'll test it over the weekend.
>
> I found a failing test about the context time - it complained about
> difference in enabled vs running time of a software event.
Yeah, it's that ctx_scheD_out(EVENT_TIME) thing, that's really needed.
I'll make those changes go away when I split it all up.
next prev parent reply other threads:[~2024-08-05 9:15 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-31 0:06 [PATCH v2] perf/core: Optimize event reschedule for a PMU Namhyung Kim
2024-08-02 17:39 ` Namhyung Kim
2024-08-02 18:30 ` Liang, Kan
2024-08-02 18:38 ` Peter Zijlstra
2024-08-02 18:43 ` Peter Zijlstra
2024-08-02 18:50 ` Peter Zijlstra
2024-08-02 19:11 ` Peter Zijlstra
2024-08-02 19:31 ` Liang, Kan
2024-08-02 19:32 ` Namhyung Kim
2024-08-03 10:32 ` Peter Zijlstra
2024-08-03 17:08 ` Namhyung Kim
2024-08-05 6:39 ` Namhyung Kim
2024-08-05 9:15 ` Peter Zijlstra [this message]
2024-08-05 9:05 ` Peter Zijlstra
2024-08-05 9:20 ` Peter Zijlstra
2024-08-05 14:58 ` Peter Zijlstra
2024-08-06 6:19 ` Namhyung Kim
2024-08-06 7:56 ` Peter Zijlstra
2024-08-06 8:07 ` Peter Zijlstra
2024-08-06 19:29 ` Namhyung Kim
2024-08-06 13:54 ` Liang, Kan
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