Hi Arnaldo and all,
Current python script can only handle trace point type of events, this
patch serie try to follow Robert Richter's idea in commit 37a058ea0
"perf script: Add generic perl handler to process events"
to similarly add a python handler for general events other than
tracepoints.
The first 3 patches have been reviewed and modified several times,
and 1/2 have your signed-off, Could you consider to pick them up?
I've have rebased them on top of you perf/core branch with top
commit 9782243.
Also in v4, we added 2 RFC python scripts: EventClass.py as a libary and
process_event.py as a sample to show to handle the general events.
Here is a sample output of using the 2 scripts:
feng@feng-i7:/dev/shm$perf record -a tree
feng@feng-i7:/dev/shm$perf script -s process_event.py
---------------------------------
There is 67 records in gen_events table
Statistics about the general events grouped by thread/symbol/dso:
comm number histgram
=============================================
swapper 51 =====#
perf 10 =
tree 4 ####
kworker/1:3 1 #
sshd 1 #
symbol number histgram
==========================================================
native_write_msr_safe 40 ====
__lock_acquire 5 #####
intel_idle 2 ##
native_sched_clock 2 ##
__might_sleep 1 #
__slab_free 1 #
cpuidle_enter 1 #
generic_exec_single 1 #
generic_permission 1 #
hpet_msi_next_event 1 #
irq_exit 1 #
ktime_get_real 1 #
load_balance 1 #
memset 1 #
n_tty_poll 1 #
prepare_ftrace_return 1 #
sched_clock_cpu 1 #
smp_call_function_single_interrupt 1 #
strtok 1 #
task_waking_fair 1 #
tick_nohz_stop_sched_tick 1 #
dso number histgram
==========================================================================
[kernel.kallsyms] 66 ======######
/lib/libc-2.12.1.so 1 #
Please help to revew, thanks.
- Feng
-----------------------------
Change logs:
Since v4:
* rebased with Arnaldo's git perf/core branch on top of
commmit 9782243
Since v3:
* Add 2 RFC scripts: EventClass.py and process_event.py
* Rebased upon 3.5-rc4 d1346a6
* Add a check for whether the dso info exist
Since v2:
* Correct some __unused usage
* Add a new parameter: event name to event handler
Since v1:
* Use dictory as the paramter passwd from c to python
* Use "process_event" name to comply with perl
Feng Tang (5):
perf script: Add general python handler to process non-tracepoint
events
perf script: Replace "struct thread" with "struct addr_location" as a
parameter for "process_event()"
perf script/python: Pass event/thread/dso name and symbol info to
event handler in python
perf script: Add a python library EventClass.py
perf script: Add event_analyzing_sample.py as a sample for general
event handling
tools/perf/builtin-script.c | 5 +-
.../Perf-Trace-Util/lib/Perf/Trace/EventClass.py | 95 ++++++++++
.../perf/scripts/python/event_analyzing_sample.py | 193 ++++++++++++++++++++
.../perf/util/scripting-engines/trace-event-perl.c | 11 +-
.../util/scripting-engines/trace-event-python.c | 85 +++++++++-
tools/perf/util/trace-event-scripting.c | 2 +-
tools/perf/util/trace-event.h | 5 +-
7 files changed, 384 insertions(+), 12 deletions(-)
create mode 100755
tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/EventClass.py
create mode 100644 tools/perf/scripts/python/event_analyzing_sample.py
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