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[ Upstream commit 1f64cfdebfe0494264271e8d7a3a47faf5f58ec7 ]
Integers are not converted to floats during division in Python 2 which
results in incorrect IPC values. Fix by switching to new division
behavior.
Fixes: a483e64c0b62e93a ("perf scripting python: intel-pt-events.py: Add --insn-trace and --src-trace")
Signed-off-by: Roman Lozko <lozko.roma@gmail.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20230310150445.2925841-1-lozko.roma@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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Add machine_pid and vcpu to the intel-pt-events.py script.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: kvm@vger.kernel.org
Link: https://lore.kernel.org/r/20220711093218.10967-20-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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it is ASCII
It can be convenient to put a string value into a ptwrite payload as
a quick and easy way to identify what is being printed.
To make that useful, if the Intel ptwrite payload value contains only
printable ASCII characters padded with NULLs, then print it also as a
string.
Using the example program from the "Emulated PTWRITE" section of
tools/perf/Documentation/perf-intel-pt.txt:
$ echo -n "Hello" | od -t x8
0000000 0000006f6c6c6548
0000005
$ perf record -e intel_pt//u ./eg_ptw 0x0000006f6c6c6548
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.016 MB perf.data ]
$ perf script --itrace=ew intel-pt-events.py
Intel PT Branch Trace, Power Events, Event Trace and PTWRITE
Switch In 38524/38524 [001] 24166.044995916 0/0
eg_ptw 38524/38524 [001] 24166.045380004 ptwrite jmp IP: 0 payload: 0x6f6c6c6548 Hello 56532c7ce196 perf_emulate_ptwrite+0x16 (/home/ahunter/git/work/eg_ptw)
End
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/r/20220509152400.376613-4-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Add Event Trace to the intel-pt-events.py script. This shows how to unpack
the raw data from the new sample events in a Python script.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: https://lore.kernel.org/r/20220124084201.2699795-22-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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The intel-pt-events.py script displays only the last of consecutive switch
statements but that may not be the last switch event for the CPU. Fix by
keeping a dictionary of last context switch keyed by CPU, and make it
possible to see all switch events by adding option --all-switch-events.
Fixes: a92bf335fd82eeee ("perf scripts python: intel-pt-events.py: Add branches to script")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20211215080636.149562-4-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Add an instruction trace and a source trace to the intel-pt-events.py
script.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: https://lore.kernel.org/r/20210530192308.7382-14-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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As an example, add branch information to intel-pt-events.py script.
This shows how a simple python script can be used to customize
perf script output for Intel PT branch traces or power event traces.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: https://lore.kernel.org/r/20210525095112.1399-11-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Support both Python2 and Python3 in the intel-pt-events.py script
There may be differences in the ordering of output lines due to
differences in dictionary ordering etc. However the format within lines
should be unchanged.
The use of 'from __future__' implies the minimum supported Python2 version
is now v2.6
Signed-off-by: Tony Jones <tonyj@suse.de>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: http://lkml.kernel.org/r/fd26acf9-0c0f-717f-9664-a3c33043ce19@suse.de
Signed-off-by: Seeteena Thoufeek <s1seetee@linux.vnet.ibm.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Remove mixed indentation in Python scripts. Revert to either all tabs
(most common form) or all spaces (4 or 8) depending on what was the
intent of the original commit. This is necessary to complete Python3
support as it will flag an error if it encounters mixed indentation.
Signed-off-by: Tony Jones <tonyj@suse.de>
Link: http://lkml.kernel.org/r/20190302011903.2416-2-tonyj@suse.de
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Add script intel-pt-events.py that provides an example of how to unpack the
raw data for power events and PTWRITE.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Link: http://lkml.kernel.org/r/1495786658-18063-35-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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