forked from luck/tmp_suning_uos_patched
0f5f5bcd11
This provides valuable information for tracing performance problems. Since this change alters the interface for the python scripts, also adjust the script generation and the provided scripts. Signed-off-by: Joseph Schuchart <joseph.schuchart@tu-dresden.de> Acked-by: Thomas Ilsche <thomas.ilsche@tu-dresden.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Thomas Ilsche <thomas.ilsche@tu-dresden.de> Link: http://lkml.kernel.org/r/53BE7E1B.10503@tu-dresden.de Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
75 lines
2.1 KiB
Python
75 lines
2.1 KiB
Python
# system call counts, by pid
|
|
# (c) 2010, Tom Zanussi <tzanussi@gmail.com>
|
|
# Licensed under the terms of the GNU GPL License version 2
|
|
#
|
|
# Displays system-wide system call totals, broken down by syscall.
|
|
# If a [comm] arg is specified, only syscalls called by [comm] are displayed.
|
|
|
|
import os, sys
|
|
|
|
sys.path.append(os.environ['PERF_EXEC_PATH'] + \
|
|
'/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
|
|
|
|
from perf_trace_context import *
|
|
from Core import *
|
|
from Util import syscall_name
|
|
|
|
usage = "perf script -s syscall-counts-by-pid.py [comm]\n";
|
|
|
|
for_comm = None
|
|
for_pid = None
|
|
|
|
if len(sys.argv) > 2:
|
|
sys.exit(usage)
|
|
|
|
if len(sys.argv) > 1:
|
|
try:
|
|
for_pid = int(sys.argv[1])
|
|
except:
|
|
for_comm = sys.argv[1]
|
|
|
|
syscalls = autodict()
|
|
|
|
def trace_begin():
|
|
print "Press control+C to stop and show the summary"
|
|
|
|
def trace_end():
|
|
print_syscall_totals()
|
|
|
|
def raw_syscalls__sys_enter(event_name, context, common_cpu,
|
|
common_secs, common_nsecs, common_pid, common_comm,
|
|
common_callchain, id, args):
|
|
|
|
if (for_comm and common_comm != for_comm) or \
|
|
(for_pid and common_pid != for_pid ):
|
|
return
|
|
try:
|
|
syscalls[common_comm][common_pid][id] += 1
|
|
except TypeError:
|
|
syscalls[common_comm][common_pid][id] = 1
|
|
|
|
def syscalls__sys_enter(event_name, context, common_cpu,
|
|
common_secs, common_nsecs, common_pid, common_comm,
|
|
id, args):
|
|
raw_syscalls__sys_enter(**locals())
|
|
|
|
def print_syscall_totals():
|
|
if for_comm is not None:
|
|
print "\nsyscall events for %s:\n\n" % (for_comm),
|
|
else:
|
|
print "\nsyscall events by comm/pid:\n\n",
|
|
|
|
print "%-40s %10s\n" % ("comm [pid]/syscalls", "count"),
|
|
print "%-40s %10s\n" % ("----------------------------------------", \
|
|
"----------"),
|
|
|
|
comm_keys = syscalls.keys()
|
|
for comm in comm_keys:
|
|
pid_keys = syscalls[comm].keys()
|
|
for pid in pid_keys:
|
|
print "\n%s [%d]\n" % (comm, pid),
|
|
id_keys = syscalls[comm][pid].keys()
|
|
for id, val in sorted(syscalls[comm][pid].iteritems(), \
|
|
key = lambda(k, v): (v, k), reverse = True):
|
|
print " %-38s %10d\n" % (syscall_name(id), val),
|