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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990# 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 threadexcept 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 = Nonedefault_interval = 3interval = 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)