# system call top
|
# (c) 2010, Tom Zanussi <tzanussi@gmail.com>
|
# Licensed under the terms of the GNU GPL License version 2
|
#
|
# Periodically displays system-wide system call totals, broken down by
|
# syscall. If a [comm] arg is specified, only syscalls called by
|
# [comm] are displayed. If an [interval] arg is specified, the display
|
# will be refreshed every [interval] seconds. The default interval is
|
# 3 seconds.
|
|
from __future__ import print_function
|
|
import os, sys, time
|
|
try:
|
import thread
|
except ImportError:
|
import _thread as thread
|
|
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 *
|
|
usage = "perf script -s sctop.py [comm] [interval]\n";
|
|
for_comm = None
|
default_interval = 3
|
interval = default_interval
|
|
if len(sys.argv) > 3:
|
sys.exit(usage)
|
|
if len(sys.argv) > 2:
|
for_comm = sys.argv[1]
|
interval = int(sys.argv[2])
|
elif len(sys.argv) > 1:
|
try:
|
interval = int(sys.argv[1])
|
except ValueError:
|
for_comm = sys.argv[1]
|
interval = default_interval
|
|
syscalls = autodict()
|
|
def trace_begin():
|
thread.start_new_thread(print_syscall_totals, (interval,))
|
pass
|
|
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 is not None:
|
if common_comm != for_comm:
|
return
|
try:
|
syscalls[id] += 1
|
except TypeError:
|
syscalls[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(interval):
|
while 1:
|
clear_term()
|
if for_comm is not None:
|
print("\nsyscall events for %s:\n" % (for_comm))
|
else:
|
print("\nsyscall events:\n")
|
|
print("%-40s %10s" % ("event", "count"))
|
print("%-40s %10s" %
|
("----------------------------------------",
|
"----------"))
|
|
for id, val in sorted(syscalls.items(),
|
key = lambda kv: (kv[1], kv[0]),
|
reverse = True):
|
try:
|
print("%-40s %10d" % (syscall_name(id), val))
|
except TypeError:
|
pass
|
syscalls.clear()
|
time.sleep(interval)
|
