From: James Clark <james.clark@arm.com>
To: linux-perf-users@vger.kernel.org, mark.rutland@arm.com,
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>,
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>,
Yang Jihong <yangjihong1@huawei.com>,
Changbin Du <changbin.du@huawei.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] perf test: Fix session topology test on heterogeneous systems
Date: Mon, 22 Jan 2024 15:58:13 +0000 [thread overview]
Message-ID: <c8568014-c9e5-4555-b086-e231647696f5@arm.com> (raw)
In-Reply-To: <20240122155436.185089-1-james.clark@arm.com>
On 22/01/2024 15:54, James Clark wrote:
> The test currently fails with this message when evlist__new_default()
> opens more than one event:
>
> 32: Session topology :
> --- start ---
> templ file: /tmp/perf-test-vv5YzZ
> Using CPUID 0x00000000410fd070
> Opening: unknown-hardware:HG
> ------------------------------------------------------------
> perf_event_attr:
> type 0 (PERF_TYPE_HARDWARE)
> config 0xb00000000
> disabled 1
> ------------------------------------------------------------
> sys_perf_event_open: pid 0 cpu -1 group_fd -1 flags 0x8 = 4
> Opening: unknown-hardware:HG
> ------------------------------------------------------------
> perf_event_attr:
> type 0 (PERF_TYPE_HARDWARE)
> config 0xa00000000
> disabled 1
> ------------------------------------------------------------
> sys_perf_event_open: pid 0 cpu -1 group_fd -1 flags 0x8 = 5
> non matching sample_type
> FAILED tests/topology.c:73 can't get session
> ---- end ----
> Session topology: FAILED!
>
> This is because when re-opening the file and parsing the header, Perf
> expects that any file that has more than one event has the session ID
session ID -> sample ID
next prev parent reply other threads:[~2024-01-22 15:58 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-22 15:54 James Clark
2024-01-22 15:58 ` James Clark [this message]
2024-01-22 16:41 ` Liang, Kan
2024-01-22 17:09 ` Ian Rogers
2024-01-23 0:09 ` Ian Rogers
2024-01-23 10:27 ` [PATCH v2] perf evlist: Fix evlist__new_default() for > 1 core PMU James Clark
2024-01-23 10:39 ` [PATCH v3] " James Clark
2024-01-24 0:46 ` Namhyung Kim
2024-01-24 9:03 ` James Clark
2024-01-26 16:25 ` Arnaldo Carvalho de Melo
2024-01-26 20:49 ` Namhyung Kim
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