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| author | Adrian Hunter <adrian.hunter@intel.com> | 2021-05-25 11:51:10 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-05-25 15:07:17 +0200 |
| commit | 0db2134069275d1177c2dd531cbc73578b7ec8ac (patch) | |
| tree | e82d5c33894986f48b6eb2aa91214929a51da7fc /tools/perf/util/scripting-engines | |
| parent | perf scripting python: Add cpumode (diff) | |
| download | linux-0db2134069275d1177c2dd531cbc73578b7ec8ac.tar.xz linux-0db2134069275d1177c2dd531cbc73578b7ec8ac.zip | |
perf scripting python: Add context switch
Add context_switch to general python scripting.
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/20210525095112.1399-9-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/scripting-engines')
| -rw-r--r-- | tools/perf/util/scripting-engines/trace-event-python.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c index cb708669e02e..c422901d5344 100644 --- a/tools/perf/util/scripting-engines/trace-event-python.c +++ b/tools/perf/util/scripting-engines/trace-event-python.c @@ -1019,6 +1019,11 @@ static int tuple_set_s32(PyObject *t, unsigned int pos, s32 val) return PyTuple_SetItem(t, pos, _PyLong_FromLong(val)); } +static int tuple_set_bool(PyObject *t, unsigned int pos, bool val) +{ + return PyTuple_SetItem(t, pos, PyBool_FromLong(val)); +} + static int tuple_set_string(PyObject *t, unsigned int pos, const char *s) { return PyTuple_SetItem(t, pos, _PyUnicode_FromString(s)); @@ -1406,6 +1411,44 @@ static void python_process_event(union perf_event *event, } } +static void python_do_process_switch(union perf_event *event, + struct perf_sample *sample, + struct machine *machine) +{ + const char *handler_name = "context_switch"; + bool out = event->header.misc & PERF_RECORD_MISC_SWITCH_OUT; + bool out_preempt = out && (event->header.misc & PERF_RECORD_MISC_SWITCH_OUT_PREEMPT); + pid_t np_pid = -1, np_tid = -1; + PyObject *handler, *t; + + handler = get_handler(handler_name); + if (!handler) + return; + + if (event->header.type == PERF_RECORD_SWITCH_CPU_WIDE) { + np_pid = event->context_switch.next_prev_pid; + np_tid = event->context_switch.next_prev_tid; + } + + t = tuple_new(9); + if (!t) + return; + + tuple_set_u64(t, 0, sample->time); + tuple_set_s32(t, 1, sample->cpu); + tuple_set_s32(t, 2, sample->pid); + tuple_set_s32(t, 3, sample->tid); + tuple_set_s32(t, 4, np_pid); + tuple_set_s32(t, 5, np_tid); + tuple_set_s32(t, 6, machine->pid); + tuple_set_bool(t, 7, out); + tuple_set_bool(t, 8, out_preempt); + + call_object(handler, t, handler_name); + + Py_DECREF(t); +} + static void python_process_switch(union perf_event *event, struct perf_sample *sample, struct machine *machine) @@ -1414,6 +1457,8 @@ static void python_process_switch(union perf_event *event, if (tables->db_export_mode) db_export__switch(&tables->dbe, event, sample, machine); + else + python_do_process_switch(event, sample, machine); } static void get_handler_name(char *str, size_t size, |