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
next prev parent 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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=ac2zXqAgWqKqdSyr@google.com \
--to=namhyung@kernel.org \
--cc=acme@kernel.org \
--cc=adrian.hunter@intel.com \
--cc=alexander.shishkin@linux.intel.com \
--cc=ctshao@google.com \
--cc=irogers@google.com \
--cc=james.clark@linaro.org \
--cc=jolsa@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-perf-users@vger.kernel.org \
--cc=mark.rutland@arm.com \
--cc=mingo@redhat.com \
--cc=peterz@infradead.org \
--cc=ravi.bangoria@amd.com \
--cc=zide.chen@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.