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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566# system call counts# (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.
from __future__ import print_function
import osimport 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.py [comm]\n";
for_comm = None
if len(sys.argv) > 2: sys.exit(usage)
if len(sys.argv) > 1: 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 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(): 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): print("%-40s %10d" % (syscall_name(id), val))