c02514850d
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>
83 lines
2.4 KiB
Python
83 lines
2.4 KiB
Python
# perf trace event handlers, generated by perf trace -g python
|
|
# (c) 2010, Tom Zanussi <tzanussi@gmail.com>
|
|
# Licensed under the terms of the GNU GPL License version 2
|
|
#
|
|
# This script tests basic functionality such as flag and symbol
|
|
# strings, common_xxx() calls back into perf, begin, end, unhandled
|
|
# events, etc. Basically, if this script runs successfully and
|
|
# displays expected results, Python scripting support should be ok.
|
|
|
|
import os
|
|
import sys
|
|
|
|
sys.path.append(os.environ['PERF_EXEC_PATH'] + \
|
|
'/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
|
|
|
|
from Core import *
|
|
from perf_trace_context import *
|
|
|
|
unhandled = autodict()
|
|
|
|
def trace_begin():
|
|
print "trace_begin"
|
|
pass
|
|
|
|
def trace_end():
|
|
print_unhandled()
|
|
|
|
def irq__softirq_entry(event_name, context, common_cpu,
|
|
common_secs, common_nsecs, common_pid, common_comm,
|
|
vec):
|
|
print_header(event_name, common_cpu, common_secs, common_nsecs,
|
|
common_pid, common_comm)
|
|
|
|
print_uncommon(context)
|
|
|
|
print "vec=%s\n" % \
|
|
(symbol_str("irq__softirq_entry", "vec", vec)),
|
|
|
|
def kmem__kmalloc(event_name, context, common_cpu,
|
|
common_secs, common_nsecs, common_pid, common_comm,
|
|
call_site, ptr, bytes_req, bytes_alloc,
|
|
gfp_flags):
|
|
print_header(event_name, common_cpu, common_secs, common_nsecs,
|
|
common_pid, common_comm)
|
|
|
|
print_uncommon(context)
|
|
|
|
print "call_site=%u, ptr=%u, bytes_req=%u, " \
|
|
"bytes_alloc=%u, gfp_flags=%s\n" % \
|
|
(call_site, ptr, bytes_req, bytes_alloc,
|
|
|
|
flag_str("kmem__kmalloc", "gfp_flags", gfp_flags)),
|
|
|
|
def trace_unhandled(event_name, context, event_fields_dict):
|
|
try:
|
|
unhandled[event_name] += 1
|
|
except TypeError:
|
|
unhandled[event_name] = 1
|
|
|
|
def print_header(event_name, cpu, secs, nsecs, pid, comm):
|
|
print "%-20s %5u %05u.%09u %8u %-20s " % \
|
|
(event_name, cpu, secs, nsecs, pid, comm),
|
|
|
|
# print trace fields not included in handler args
|
|
def print_uncommon(context):
|
|
print "common_preempt_count=%d, common_flags=%s, common_lock_depth=%d, " \
|
|
% (common_pc(context), trace_flag_str(common_flags(context)), \
|
|
common_lock_depth(context))
|
|
|
|
def print_unhandled():
|
|
keys = unhandled.keys()
|
|
if not keys:
|
|
return
|
|
|
|
print "\nunhandled events:\n\n",
|
|
|
|
print "%-40s %10s\n" % ("event", "count"),
|
|
print "%-40s %10s\n" % ("----------------------------------------", \
|
|
"-----------"),
|
|
|
|
for event_name in keys:
|
|
print "%-40s %10d\n" % (event_name, unhandled[event_name])
|