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From: Andi Kleen <ak@linux.intel.com>
To: Artem Savkov <asavkov@redhat.com>
Cc: linux-perf-users@vger.kernel.org
Subject: Re: [PATCH 1/2] perf script: Fix perf script -F +metric
Date: Fri, 28 Jun 2024 12:19:59 -0700	[thread overview]
Message-ID: <Zn8M39dHtqYpRa0o@tassilo> (raw)
In-Reply-To: <20240626090924.GA56952@alecto.usersys.redhat.com>

> This works, however there seems to be yet another issue on
> perf-tools-next branch that breaks script metrics.
> 
> 617824a7f0f73 (perf parse-events: Prefer sysfs/JSON hardware
> events over legacy, 2024-04-15) changes event priority so on
> my host "instructions" have type PERF_TYPE_RAW instead of
> PERF_TYPE_HARDWARE.

FWIW I don't see this on my build on Intel, even with that commit.

> This results in evsel__stat_type no longer recognizing these as
> STAT_INSTRUCTIONS.

I guess we could just fix evsel__stat_type to handle that case

Does this patch work?

perf: Workaround event priority problems
    
When instructions is not of HARDWARE types anymore, but raw,
which breaks the shadow stat metrics detection for IPC.
    
Reported-by: Artem Savkov <asavkov@redhat.com>
Fixes: 617824a7f0f73 (perf parse-events: Prefer sysfs/JSON hardware
Signed-off-by: Andi Kleen <ak@linux.intel.com>

diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c
index 3466aa952442..87a503e47ff0 100644
--- a/tools/perf/util/stat-shadow.c
+++ b/tools/perf/util/stat-shadow.c
@@ -97,9 +97,11 @@ static enum stat_type evsel__stat_type(const struct evsel *evsel)
 
 	if (evsel__is_clock(evsel))
 		return STAT_NSECS;
-	else if (evsel__match(evsel, HARDWARE, HW_CPU_CYCLES))
+	else if (evsel__match(evsel, HARDWARE, HW_CPU_CYCLES) ||
+			!strcmp(evsel__name((struct evsel *)evsel), "cycles"))
 		return STAT_CYCLES;
-	else if (evsel__match(evsel, HARDWARE, HW_INSTRUCTIONS))
+	else if (evsel__match(evsel, HARDWARE, HW_INSTRUCTIONS) ||
+			!strcmp(evsel__name((struct evsel *)evsel), "instructions"))
 		return STAT_INSTRUCTIONS;
 	else if (evsel__match(evsel, HARDWARE, HW_STALLED_CYCLES_FRONTEND))
 		return STAT_STALLED_CYCLES_FRONT;

  parent reply	other threads:[~2024-06-28 19:20 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-06-25  0:42 [PATCH 1/2] perf script: Fix perf script -F +metric Andi Kleen
2024-06-25  0:42 ` [PATCH 2/2] Add a test case for " Andi Kleen
2024-06-27 22:54   ` Namhyung Kim
2024-06-26  9:09 ` [PATCH 1/2] perf script: Fix " Artem Savkov
2024-06-27 22:50   ` Namhyung Kim
2024-06-28 19:19   ` Andi Kleen [this message]
2024-07-01  7:04     ` Artem Savkov
2024-07-01 16:54       ` Andi Kleen
2024-06-27 22:46 ` Namhyung Kim

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