linux-kernel - Re: [External] Re: [PATCH v2 2/6] perf/core: Introduce percpu perf

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Message-ID: <YjspMR6gJ5AWjE8Q@hirez.programming.kicks-ass.net>
Date:   Wed, 23 Mar 2022 15:05:37 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Chengming Zhou <zhouchengming@...edance.com>
Cc:     mingo@...hat.com, acme@...nel.org, mark.rutland@....com,
        alexander.shishkin@...ux.intel.com, jolsa@...nel.org,
        namhyung@...nel.org, eranian@...gle.com,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org,
        duanxiongchun@...edance.com, songmuchun@...edance.com
Subject: Re: [External] Re: [PATCH v2 2/6] perf/core: Introduce percpu
 perf_cgroup

On Wed, Mar 23, 2022 at 09:37:16PM +0800, Chengming Zhou wrote:

> But you are right, having cpuctx->cgrp and cpu_perf_cgroup make things confused..
> maybe we can delete cpuctx->cgrp, change to use percpu cpu_perf_cgroup?

I'm hoping to soon (*finally*!) have some time for this again:

  https://lkml.kernel.org/r/20220113134743.1292-1-ravi.bangoria@amd.com

That should get us a single cpuctx.