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author | Pierre Tardy <tardyp@gmail.com> | 2010-05-31 23:12:09 +0200 |
---|---|---|
committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2010-06-01 06:12:35 -0300 |
commit | c02514850d67be8db6b2b6658cbc23ac1fbf8bc7 (patch) | |
tree | 309a7df9e2cb7ae681479ae36fd39e710721c472 /tools/perf | |
parent | 75d9ef1707cf3db264a549142a1f54a5380d63dc (diff) | |
download | kernel_samsung_espresso10-c02514850d67be8db6b2b6658cbc23ac1fbf8bc7.zip kernel_samsung_espresso10-c02514850d67be8db6b2b6658cbc23ac1fbf8bc7.tar.gz kernel_samsung_espresso10-c02514850d67be8db6b2b6658cbc23ac1fbf8bc7.tar.bz2 |
perf scripts python: Give field dict to unhandled callback
trace_unhandled() callback does not allow to access event fields, this patch
resolves the problem.
It can also been used as a more pythonic and flexible way for script writters
to demux event types
This will for example greatly simplify pytimechart event demux.
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Acked-by: Tom Zanussi <tzanussi@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>,
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <1275340329-2397-1-git-send-email-tardyp@gmail.com>
Signed-off-by: Pierre Tardy <tardyp@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
-rw-r--r-- | tools/perf/scripts/python/check-perf-trace.py | 3 | ||||
-rw-r--r-- | tools/perf/util/scripting-engines/trace-event-python.c | 50 |
2 files changed, 35 insertions, 18 deletions
diff --git a/tools/perf/scripts/python/check-perf-trace.py b/tools/perf/scripts/python/check-perf-trace.py index 964d934..d9f7893 100644 --- a/tools/perf/scripts/python/check-perf-trace.py +++ b/tools/perf/scripts/python/check-perf-trace.py @@ -51,8 +51,7 @@ def kmem__kmalloc(event_name, context, common_cpu, flag_str("kmem__kmalloc", "gfp_flags", gfp_flags)), -def trace_unhandled(event_name, context, common_cpu, common_secs, common_nsecs, - common_pid, common_comm): +def trace_unhandled(event_name, context, event_fields_dict): try: unhandled[event_name] += 1 except TypeError: diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c index 81f39ca..33a6325 100644 --- a/tools/perf/util/scripting-engines/trace-event-python.c +++ b/tools/perf/util/scripting-engines/trace-event-python.c @@ -208,7 +208,7 @@ static void python_process_event(int cpu, void *data, int size __unused, unsigned long long nsecs, char *comm) { - PyObject *handler, *retval, *context, *t, *obj; + PyObject *handler, *retval, *context, *t, *obj, *dict = NULL; static char handler_name[256]; struct format_field *field; unsigned long long val; @@ -232,6 +232,14 @@ static void python_process_event(int cpu, void *data, sprintf(handler_name, "%s__%s", event->system, event->name); + handler = PyDict_GetItemString(main_dict, handler_name); + if (handler && !PyCallable_Check(handler)) + handler = NULL; + if (!handler) { + dict = PyDict_New(); + if (!dict) + Py_FatalError("couldn't create Python dict"); + } s = nsecs / NSECS_PER_SEC; ns = nsecs - s * NSECS_PER_SEC; @@ -242,12 +250,20 @@ static void python_process_event(int cpu, void *data, PyTuple_SetItem(t, n++, PyString_FromString(handler_name)); PyTuple_SetItem(t, n++, PyCObject_FromVoidPtr(scripting_context, NULL)); - PyTuple_SetItem(t, n++, PyInt_FromLong(cpu)); - PyTuple_SetItem(t, n++, PyInt_FromLong(s)); - PyTuple_SetItem(t, n++, PyInt_FromLong(ns)); - PyTuple_SetItem(t, n++, PyInt_FromLong(pid)); - PyTuple_SetItem(t, n++, PyString_FromString(comm)); + if (handler) { + PyTuple_SetItem(t, n++, PyInt_FromLong(cpu)); + PyTuple_SetItem(t, n++, PyInt_FromLong(s)); + PyTuple_SetItem(t, n++, PyInt_FromLong(ns)); + PyTuple_SetItem(t, n++, PyInt_FromLong(pid)); + PyTuple_SetItem(t, n++, PyString_FromString(comm)); + } else { + PyDict_SetItemString(dict, "common_cpu", PyInt_FromLong(cpu)); + PyDict_SetItemString(dict, "common_s", PyInt_FromLong(s)); + PyDict_SetItemString(dict, "common_ns", PyInt_FromLong(ns)); + PyDict_SetItemString(dict, "common_pid", PyInt_FromLong(pid)); + PyDict_SetItemString(dict, "common_comm", PyString_FromString(comm)); + } for (field = event->format.fields; field; field = field->next) { if (field->flags & FIELD_IS_STRING) { int offset; @@ -272,27 +288,31 @@ static void python_process_event(int cpu, void *data, obj = PyLong_FromUnsignedLongLong(val); } } - PyTuple_SetItem(t, n++, obj); + if (handler) + PyTuple_SetItem(t, n++, obj); + else + PyDict_SetItemString(dict, field->name, obj); + } + if (!handler) + PyTuple_SetItem(t, n++, dict); if (_PyTuple_Resize(&t, n) == -1) Py_FatalError("error resizing Python tuple"); - handler = PyDict_GetItemString(main_dict, handler_name); - if (handler && PyCallable_Check(handler)) { + if (handler) { retval = PyObject_CallObject(handler, t); if (retval == NULL) handler_call_die(handler_name); } else { handler = PyDict_GetItemString(main_dict, "trace_unhandled"); if (handler && PyCallable_Check(handler)) { - if (_PyTuple_Resize(&t, N_COMMON_FIELDS) == -1) - Py_FatalError("error resizing Python tuple"); retval = PyObject_CallObject(handler, t); if (retval == NULL) handler_call_die("trace_unhandled"); } + Py_DECREF(dict); } Py_DECREF(t); @@ -548,12 +568,10 @@ static int python_generate_script(const char *outfile) } fprintf(ofp, "def trace_unhandled(event_name, context, " - "common_cpu, common_secs, common_nsecs,\n\t\t" - "common_pid, common_comm):\n"); + "event_fields_dict):\n"); - fprintf(ofp, "\t\tprint_header(event_name, common_cpu, " - "common_secs, common_nsecs,\n\t\tcommon_pid, " - "common_comm)\n\n"); + fprintf(ofp, "\t\tprint ' '.join(['%%s=%%s'%%(k,str(v))" + "for k,v in sorted(event_fields_dict.items())])\n\n"); fprintf(ofp, "def print_header(" "event_name, cpu, secs, nsecs, pid, comm):\n" |