From: James Clark <james.clark@linaro.org>
To: Ian Rogers <irogers@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Namhyung Kim <namhyung@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@kernel.org>,
Adrian Hunter <adrian.hunter@intel.com>,
Kan Liang <kan.liang@linux.intel.com>,
Dominique Martinet <asmadeus@codewreck.org>,
Andi Kleen <ak@linux.intel.com>,
linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org,
Dapeng Mi <dapeng1.mi@linux.intel.com>,
Thomas Falcon <thomas.falcon@intel.com>
Subject: Re: [PATCH v1 1/2] perf tools: Improve handling of hybrid PMUs in perf_event_attr__fprintf
Date: Wed, 5 Mar 2025 11:06:26 +0000 [thread overview]
Message-ID: <4e495505-6b67-41dc-bd62-7aba4f7cf71a@linaro.org> (raw)
In-Reply-To: <20250305083735.393333-1-irogers@google.com>
On 05/03/2025 8:37 am, Ian Rogers wrote:
> Support the PMU name from the legacy hardware and hw_cache PMU
> extended types. Remove some macros and make variables more intention
> revealing, rather than just being called "value".
>
> Before:
> ```
> $ perf stat -vv -e instructions true
> ...
> ------------------------------------------------------------
> perf_event_attr:
> type 0 (PERF_TYPE_HARDWARE)
> size 136
> config 0xa00000001
> sample_type IDENTIFIER
> read_format TOTAL_TIME_ENABLED|TOTAL_TIME_RUNNING
> disabled 1
> inherit 1
> enable_on_exec 1
> exclude_guest 1
> ------------------------------------------------------------
> sys_perf_event_open: pid 181636 cpu -1 group_fd -1 flags 0x8 = 5
> ------------------------------------------------------------
> perf_event_attr:
> type 0 (PERF_TYPE_HARDWARE)
> size 136
> config 0x400000001
> sample_type IDENTIFIER
> read_format TOTAL_TIME_ENABLED|TOTAL_TIME_RUNNING
> disabled 1
> inherit 1
> enable_on_exec 1
> exclude_guest 1
> ------------------------------------------------------------
> sys_perf_event_open: pid 181636 cpu -1 group_fd -1 flags 0x8 = 6
> ...
> ```
>
> After:
> ```
> $ perf stat -vv -e instructions true
> ...
> ------------------------------------------------------------
> perf_event_attr:
> type 0 (PERF_TYPE_HARDWARE)
> size 136
> config 0xa00000001 (cpu_atom/PERF_COUNT_HW_INSTRUCTIONS/)
Seems like a good idea, I'm always decoding these by eye.
Reviewed-by: James Clark <james.clark@linaro.org>
next prev parent reply other threads:[~2025-03-05 11:06 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-05 8:37 [PATCH v1 1/2] perf tools: Improve handling of hybrid PMUs in perf_event_attr__fprintf Ian Rogers
2025-03-05 8:37 ` [PATCH v1 2/2] perf parse-events: Corrections to topdown sorting Ian Rogers
2025-03-05 13:44 ` James Clark
2025-03-05 14:06 ` Ian Rogers
2025-03-05 15:59 ` James Clark
2025-03-06 9:17 ` Mi, Dapeng
2025-03-06 17:25 ` Ian Rogers
2025-03-05 11:06 ` James Clark [this message]
2025-03-05 21:39 ` [PATCH v1 1/2] perf tools: Improve handling of hybrid PMUs in perf_event_attr__fprintf Falcon, Thomas
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