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Date: Thu, 28 Jun 2012 17:15:29 +0800
From: Feng Tang <feng.tang@...el.com>
To: Arnaldo Carvalho de Melo <acme@...hat.com>,
David Ahern <dsahern@...il.com>,
Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org
Cc: Robert Richter <robert.richter@....com>,
Andi Kleen <andi@...stfloor.org>,
Stephane Eranian <eranian@...gle.com>,
Feng Tang <feng.tang@...el.com>
Subject: [PATCH v4 0/5] perf script: Add general event support to event handler of python script
Hi 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
trace points.
Also in v4, we added 2 RFC python scripts: EventClass.py as a libary and
event_analyzing_sample.py as a sample to show to handle the general
events.
Here is a sample output of using the 2 scripts:
feng@...g-i7:/dev/shm$perf record -a tree
feng@...g-i7:/dev/shm$perf script -s process_event.py
One note for the histgram is: the sample number may be very large,
so we print out '#' log2(num) times for each number.
---------------------------------
There is 100 records in gen_events table
Statistics about the general events grouped by thread/symbol/dso:
comm number histgram
==========================================
swapper 56 ######
tree 20 #####
perf 10 ####
sshd 8 ####
kworker/7:2 4 ###
ksoftirqd/7 1 #
plugin-containe 1 #
symbol number histgram
==========================================================
native_write_msr_safe 40 ######
__lock_acquire 8 ####
ftrace_graph_caller 4 ###
prepare_ftrace_return 4 ###
intel_idle 3 ##
native_sched_clock 3 ##
Unknown_symbol 2 ##
do_softirq 2 ##
lock_release 2 ##
lock_release_holdtime 2 ##
trace_graph_entry 2 ##
_IO_putc 1 #
__d_lookup_rcu 1 #
__do_fault 1 #
__schedule 1 #
_raw_spin_lock 1 #
delay_tsc 1 #
generic_exec_single 1 #
generic_fillattr 1 #
dso number histgram
==================================================================
[kernel.kallsyms] 95 #######
/lib/libc-2.12.1.so 5 ###
Thanks,
Feng
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 | 13 +-
.../util/scripting-engines/trace-event-python.c | 95 +++++++++-
tools/perf/util/trace-event-scripting.c | 2 +-
tools/perf/util/trace-event.h | 5 +-
7 files changed, 391 insertions(+), 17 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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