From: Adrian Hunter <adrian.hunter@intel.com>
To: Namhyung Kim <namhyung@kernel.org>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Jiri Olsa <jolsa@kernel.org>
Cc: Ian Rogers <irogers@google.com>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
linux-perf-users@vger.kernel.org,
Thomas Richter <tmricht@linux.ibm.com>,
James Clark <james.clark@arm.com>
Subject: Re: [PATCH v2] perf test: Simplify object code reading test
Date: Mon, 6 Nov 2023 10:15:07 +0200 [thread overview]
Message-ID: <c1aedc2e-e51b-4b17-a05e-cd347f56d83b@intel.com> (raw)
In-Reply-To: <20231103195541.67788-1-namhyung@kernel.org>
On 3/11/23 21:55, Namhyung Kim wrote:
> It tries cycles (or cpu-clock on s390) event with exclude_kernel bit to
> open. But other arch on a VM can fail with the hardware event and need
> to fallback to the software event in the same way.
>
> So let's get rid of the cpuid check and use generic fallback mechanism
> using an array of event candidates. Now event in the odd index excludes
> the kernel so use that for the return value.
>
> Cc: Thomas Richter <tmricht@linux.ibm.com>
> Tested-by: James Clark <james.clark@arm.com>
> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
next prev parent reply other threads:[~2023-11-06 8:15 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-03 19:55 [PATCH v2] perf test: Simplify object code reading test Namhyung Kim
2023-11-06 8:15 ` Adrian Hunter [this message]
2023-11-08 20:10 ` Arnaldo Carvalho de Melo
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