From: Thomas Richter <tmricht@linux.ibm.com>
To: Ian Rogers <irogers@google.com>
Cc: Marc Zyngier <maz@kernel.org>,
Oliver Upton <oliver.upton@linux.dev>,
Peter Zijlstra <peterz@infradead.org>,
Ravi Bangoria <ravi.bangoria@amd.com>,
Nathan Chancellor <nathan@kernel.org>,
namhyung@kernel.org, eranian@google.com, acme@kernel.org,
mark.rutland@arm.com, jolsa@kernel.org, bp@alien8.de,
kan.liang@linux.intel.com, adrian.hunter@intel.com,
maddy@linux.ibm.com, x86@kernel.org,
linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org,
sandipan.das@amd.com, ananth.narayan@amd.com,
santosh.shukla@amd.com, kvmarm@lists.linux.dev
Subject: Re: [PATCH v4 3/4] perf/core: Remove pmu linear searching code
Date: Wed, 31 May 2023 11:09:21 +0200 [thread overview]
Message-ID: <a1f27798-0b06-7dc3-028b-038512947306@linux.ibm.com> (raw)
In-Reply-To: <CAP-5=fXo0t+buDrmf7SyTD97gmTWGoDAO2YXWyav+_79O3MZ0w@mail.gmail.com>
On 5/30/23 16:00, Ian Rogers wrote:
> ls /sys/devices/*/cpu*
Hi Ian,
here is the output yo requested:
# ls /sys/devices/*/cpu*
cpu0 cpu3 cpu6 hotplug modalias possible smt
cpu1 cpu4 cpu7 isolated offline present uevent
cpu2 cpu5 dispatching kernel_max online rescan vulnerabilities
#
In fact it is the same as
# ls /sys/devices/system/cpu/
cpu0 cpu3 cpu6 hotplug modalias possible smt
cpu1 cpu4 cpu7 isolated offline present uevent
cpu2 cpu5 dispatching kernel_max online rescan vulnerabilities
#
This directory tree has nothing to do with events for perf, it is
merely used to support CPU hotplug on s390.
The PMUs on s390 are
# ls -ld /sys/devices/{cpum_,pai_}*
drwxr-xr-x 4 root root 0 May 25 15:45 /sys/devices/cpum_cf
drwxr-xr-x 4 root root 0 May 25 15:45 /sys/devices/cpum_cf_diag
drwxr-xr-x 4 root root 0 May 25 15:45 /sys/devices/cpum_sf
drwxr-xr-x 4 root root 0 May 25 15:45 /sys/devices/pai_crypto
drwxr-xr-x 4 root root 0 May 25 15:45 /sys/devices/pai_ext
#
I hope his helps.
--
Thomas Richter, Dept 3303, IBM s390 Linux Development, Boeblingen, Germany
--
Vorsitzender des Aufsichtsrats: Gregor Pillen
Geschäftsführung: David Faller
Sitz der Gesellschaft: Böblingen / Registergericht: Amtsgericht Stuttgart, HRB 243294
next prev parent reply other threads:[~2023-05-31 9:10 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-04 10:59 [PATCH v4 0/4] perf: Rework event forwarding logic Ravi Bangoria
2023-05-04 11:00 ` [PATCH v4 1/4] perf/core: Rework forwarding of {task|cpu}-clock events Ravi Bangoria
2024-02-20 8:41 ` Pengfei Xu
2024-02-23 5:27 ` Ravi Bangoria
2024-02-28 12:49 ` Ravi Bangoria
2024-02-29 3:41 ` Pengfei Xu
2023-05-04 11:00 ` [PATCH v4 2/4] perf/ibs: Fix interface via core pmu events Ravi Bangoria
2023-05-04 11:00 ` [PATCH v4 3/4] perf/core: Remove pmu linear searching code Ravi Bangoria
2023-05-24 21:41 ` Nathan Chancellor
2023-05-25 5:16 ` Ravi Bangoria
2023-05-25 7:11 ` Oliver Upton
2023-05-25 14:20 ` Peter Zijlstra
2023-05-25 15:56 ` Oliver Upton
2023-05-26 23:00 ` Ian Rogers
2023-05-27 13:32 ` Marc Zyngier
2023-05-27 17:00 ` Ian Rogers
2023-05-27 17:05 ` Ian Rogers
2023-05-27 18:38 ` Marc Zyngier
2023-05-27 19:50 ` Ian Rogers
2023-05-30 7:45 ` Thomas Richter
2023-05-30 14:00 ` Ian Rogers
2023-05-31 9:09 ` Thomas Richter [this message]
[not found] ` <CAP-5=fVw3vSEu7yGFDnZi8c3VUFJu_XEZtY9ZcTsD7ip2imR6Q@mail.gmail.com>
2023-06-01 11:02 ` Thomas Richter
2023-06-01 11:18 ` Peter Zijlstra
2023-06-01 11:20 ` Peter Zijlstra
2023-05-25 15:55 ` Nathan Chancellor
2023-05-04 11:00 ` [PATCH v4 4/4] perf test: Add selftest to test IBS invocation via core pmu events Ravi Bangoria
2023-05-05 9:16 ` Peter Zijlstra
2023-05-15 21:31 ` Arnaldo Carvalho de Melo
2023-05-15 21:33 ` Arnaldo Carvalho de Melo
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