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From: Namhyung Kim <namhyung@kernel.org>
To: Ian Rogers <irogers@google.com>
Cc: "Chen, Zide" <zide.chen@intel.com>,
	Chun-Tse Shao <ctshao@google.com>,
	linux-kernel@vger.kernel.org, peterz@infradead.org,
	mingo@redhat.com, acme@kernel.org, mark.rutland@arm.com,
	alexander.shishkin@linux.intel.com, jolsa@kernel.org,
	adrian.hunter@intel.com, james.clark@linaro.org,
	ravi.bangoria@amd.com, linux-perf-users@vger.kernel.org
Subject: Re: [PATCH v3] perf pmu intel: Adjust cpumaks for sub-NUMA clusters on Emeraldrapids
Date: Wed, 1 Apr 2026 17:07:58 -0700	[thread overview]
Message-ID: <ac2zXqAgWqKqdSyr@google.com> (raw)
In-Reply-To: <CAP-5=fXFzmKx+buppcNBQWhEP2UyCobPwYRC-L-unpmDL=2_Wg@mail.gmail.com>

On Wed, Apr 01, 2026 at 09:38:24AM -0700, Ian Rogers wrote:
> On Thu, Feb 12, 2026 at 4:08 PM Chen, Zide <zide.chen@intel.com> wrote:
> >
> > On 2/12/2026 2:39 PM, Chun-Tse Shao wrote:
> > > Similar to GNR [1], Emeraldrapids supports sub-NUMA clusters as well.
> > > Adjust cpumasks as the logic for GNR in [1].
> > >
> > > Tested on Emeraldrapids with SNC2 enabled:
> > >   $ perf stat --per-node -e 'UNC_CHA_CLOCKTICKS,UNC_M_CLOCKTICKS' -a -- sleep 1
> > >
> > >    Performance counter stats for 'system wide':
> > >
> > >   N0       30        72125876670      UNC_CHA_CLOCKTICKS
> > >   N0        4         8815163648      UNC_M_CLOCKTICKS
> > >   N1       30        72124958844      UNC_CHA_CLOCKTICKS
> > >   N1        4         8815014974      UNC_M_CLOCKTICKS
> > >   N2       30        72121049022      UNC_CHA_CLOCKTICKS
> > >   N2        4         8814592626      UNC_M_CLOCKTICKS
> > >   N3       30        72117133854      UNC_CHA_CLOCKTICKS
> > >   N3        4         8814012840      UNC_M_CLOCKTICKS
> > >
> > >          1.001574118 seconds time elapsed
> > >
> > > [1] lore.kernel.org/20250515181417.491401-1-irogers@google.com
> > >
> > > Signed-off-by: Chun-Tse Shao <ctshao@google.com>
> >
> > LGTM.
> >
> > Reviewed-by: Zide Chen <zide.chen@intel.com>
> 
> Reviewed-by: Ian Rogers <irogers@google.com>

It doesn't apply cleanly anymore.  CT, can you please rebase?

Thanks,
Namhyung


  reply	other threads:[~2026-04-02  0:08 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-02-12 22:39 [PATCH v3] perf pmu intel: Adjust cpumaks for sub-NUMA clusters on Emeraldrapids Chun-Tse Shao
2026-02-13  0:08 ` Chen, Zide
2026-04-01 16:38   ` Ian Rogers
2026-04-02  0:07     ` Namhyung Kim [this message]
2026-04-02 20:54       ` Chun-Tse Shao

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