From: Adrian Hunter <adrian.hunter@intel.com>
To: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>, Andi Kleen <ak@linux.intel.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH V2 0/6] perf dlfilter: Add dlfilter-show-cycles
Date: Tue, 26 Oct 2021 12:01:46 +0300 [thread overview]
Message-ID: <20211026090152.357591-1-adrian.hunter@intel.com> (raw)
Hi
The issue with V1 was that the IPC information used to accumulate cycle
counts has a lower granularity because it is output only when the cycle
count correlates to the IP of the event i.e. only when the IPC is exactly
correct.
To enable more frequent updates to the cycle count, itrace option 'A' is
added, which specifies that IPC information can be approximate.
In addition there are some new miscellaneous patches.
Changes in V2:
perf dlfilter: Add dlfilter-show-cycles
Separate counts for branches, instructions or other events.
New patches:
perf auxtrace: Add missing Z option to ITRACE_HELP
perf auxtrace: Add itrace A option to approximate IPC
perf intel-pt: Support itrace A option to approximate IPC
perf auxtrace: Add itrace d+o option to direct debug log to stdout
perf intel-pt: Support itrace d+o option to direct debug log to stdout
Adrian Hunter (6):
perf auxtrace: Add missing Z option to ITRACE_HELP
perf auxtrace: Add itrace A option to approximate IPC
perf intel-pt: Support itrace A option to approximate IPC
perf dlfilter: Add dlfilter-show-cycles
perf auxtrace: Add itrace d+o option to direct debug log to stdout
perf intel-pt: Support itrace d+o option to direct debug log to stdout
tools/perf/Documentation/itrace.txt | 2 +
tools/perf/Documentation/perf-intel-pt.txt | 23 ++++
tools/perf/Makefile.perf | 2 +-
tools/perf/dlfilters/dlfilter-show-cycles.c | 144 +++++++++++++++++++++
tools/perf/util/auxtrace.c | 3 +
tools/perf/util/auxtrace.h | 6 +
.../perf/util/intel-pt-decoder/intel-pt-decoder.c | 1 +
.../perf/util/intel-pt-decoder/intel-pt-decoder.h | 1 +
tools/perf/util/intel-pt-decoder/intel-pt-log.c | 8 +-
tools/perf/util/intel-pt.c | 21 ++-
10 files changed, 200 insertions(+), 11 deletions(-)
create mode 100644 tools/perf/dlfilters/dlfilter-show-cycles.c
Regards
Adrian
next reply other threads:[~2021-10-26 9:01 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-26 9:01 Adrian Hunter [this message]
2021-10-26 9:01 ` [PATCH V2 1/6] perf auxtrace: Add missing Z option to ITRACE_HELP Adrian Hunter
2021-10-26 9:01 ` [PATCH V2 2/6] perf auxtrace: Add itrace A option to approximate IPC Adrian Hunter
2021-10-26 9:01 ` [PATCH V2 3/6] perf intel-pt: Support " Adrian Hunter
2021-10-26 17:03 ` Andi Kleen
2021-10-26 9:01 ` [PATCH V2 4/6] perf dlfilter: Add dlfilter-show-cycles Adrian Hunter
2021-10-26 9:01 ` [PATCH V2 5/6] perf auxtrace: Add itrace d+o option to direct debug log to stdout Adrian Hunter
2021-10-26 9:01 ` [PATCH V2 6/6] perf intel-pt: Support " Adrian Hunter
[not found] ` <dd9f91af-8b74-bf75-b3a4-c3826be7b190@linux.intel.com>
2021-10-27 18:59 ` Arnaldo Carvalho de Melo
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