From: Jiri Olsa <jolsa@redhat.com>
To: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jin Yao <yao.jin@linux.intel.com>,
jolsa@kernel.org, peterz@infradead.org, mingo@redhat.com,
alexander.shishkin@linux.intel.com, Linux-kernel@vger.kernel.org,
ak@linux.intel.com, kan.liang@intel.com, yao.jin@intel.com
Subject: Re: [PATCH v1 1/2] perf header: Support HYBRID_TOPOLOGY feature
Date: Tue, 4 May 2021 21:37:34 +0200 [thread overview]
Message-ID: <YJGifgASdDD7T8Xc@krava> (raw)
In-Reply-To: <YJGgYSXcJbZ2n3H3@kernel.org>
On Tue, May 04, 2021 at 04:28:33PM -0300, Arnaldo Carvalho de Melo wrote:
> Em Tue, May 04, 2021 at 04:56:44PM +0200, Jiri Olsa escreveu:
> > On Fri, Apr 30, 2021 at 03:46:01PM +0800, Jin Yao wrote:
> > > It would be useful to let user know the hybrid topology.
> > > Adding HYBRID_TOPOLOGY feature in header to indicate the
> > > core cpus and the atom cpus.
>
> > > With this patch,
>
> > > For the perf.data generated on hybrid platform,
> > > reports the hybrid cpu list.
>
> > > root@otcpl-adl-s-2:~# perf report --header-only -I
> > > ...
> > > # cpu_core cpu list : 0-15
> > > # cpu_atom cpu list : 16-23
>
> > hum, should we print 'hybrid:' or something to make
> > sure its not confused with something else? like
>
> > # hybrid cpu_core cpu list : 0-15
> > # hybrid cpu_atom cpu list : 16-23
>
> But this _core/_atom already got to be enough? I disagreed with that
> naming, but neverthless having one or the other present in an output is
> a clear mark of this hybrid topology.
>
> I.e having that extra hybrid string that wouldn't add information to the
> output.
sure when you know that cpu_core/cpu_atom are hybrid pmus ;-)
and I guess other arch will come with other names
jirka
>
> IMHO.
>
> - Arnaldo
>
next prev parent reply other threads:[~2021-05-04 19:37 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-30 7:46 [PATCH v1 1/2] perf header: Support HYBRID_TOPOLOGY feature Jin Yao
2021-04-30 7:46 ` [PATCH v1 2/2] perf header: Support hybrid CPU_PMU_CAPS Jin Yao
2021-05-04 15:07 ` Jiri Olsa
2021-05-06 4:59 ` Jin, Yao
2021-05-06 13:22 ` Jiri Olsa
2021-05-06 14:43 ` Jin, Yao
2021-05-10 13:11 ` Jiri Olsa
2021-05-11 1:15 ` Jin, Yao
2021-05-03 15:18 ` [PATCH v1 1/2] perf header: Support HYBRID_TOPOLOGY feature Arnaldo Carvalho de Melo
2021-05-04 2:03 ` Jin, Yao
2021-05-04 14:54 ` Jiri Olsa
2021-05-06 2:01 ` Jin, Yao
2021-05-04 14:56 ` Jiri Olsa
2021-05-04 19:28 ` Arnaldo Carvalho de Melo
2021-05-04 19:37 ` Jiri Olsa [this message]
2021-05-05 13:49 ` Arnaldo Carvalho de Melo
2021-05-05 20:28 ` Jiri Olsa
2021-05-06 2:22 ` Jin, Yao
2021-05-06 2:17 ` Jin, Yao
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