From a64fa198ba1cd232871710c37476e006ed5516ed Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Mon, 25 Oct 2010 18:44:09 -0200 Subject: [PATCH] perf python scripting: Improve the syscalls-by-pid script . Print message at script start telling how to get te summary . Print the syscall names . Accept both pid (if numeric) or COMM name Now it looks like this: [root@emilia tmp]# perf trace syscall-counts-by-pid Press control+C to stop and show the summary ^C syscall events by comm/pid: comm [pid]/syscalls count ---------------------------------------- ---------- automount [1670] futex 2 sshd [2322] rt_sigprocmask 4 select 2 write 1 read 1 perf [15178] read 2506 open 794 close 769 write 240 getdents 112 lseek 16 stat 9 perf_counter_open 5 fcntl 5 mmap 5 statfs 2 perf [15179] read 56701 open 499 stat 176 fstat 149 close 109 mmap 98 brk 75 rt_sigaction 66 munmap 42 mprotect 24 lstat 7 lseek 5 getdents 4 ioctl 3 readlink 2 futex 1 statfs 1 getegid 1 geteuid 1 getgid 1 getuid 1 getrlimit 1 fcntl 1 uname 1 write 1 [root@emilia tmp]# fg -bash: fg: current: no such job [root@emilia tmp]# perf trace syscall-counts-by-pid 2322 Press control+C to stop and show the summary ^C syscall events by comm/pid: comm [pid]/syscalls count ---------------------------------------- ---------- sshd [2322] rt_sigprocmask 4 select 2 write 1 read 1 [root@emilia tmp]# perf trace syscall-counts-by-pid sshd Press control+C to stop and show the summary ^C syscall events for sshd: comm [pid]/syscalls count ---------------------------------------- ---------- sshd [2322] rt_sigprocmask 4 select 2 write 1 read 1 [root@emilia tmp]# Cc: David S. Miller Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Mike Galbraith Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Tom Zanussi LKML-Reference: Signed-off-by: Arnaldo Carvalho de Melo --- .../scripts/python/syscall-counts-by-pid.py | 21 ++++++++++++------- 1 file changed, 13 insertions(+), 8 deletions(-) diff --git a/tools/perf/scripts/python/syscall-counts-by-pid.py b/tools/perf/scripts/python/syscall-counts-by-pid.py index af722d6a4b3f..d1ee3ec10cf2 100644 --- a/tools/perf/scripts/python/syscall-counts-by-pid.py +++ b/tools/perf/scripts/python/syscall-counts-by-pid.py @@ -5,29 +5,33 @@ # 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 -import sys +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 trace -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: - for_comm = sys.argv[1] + try: + for_pid = int(sys.argv[1]) + except: + for_comm = sys.argv[1] syscalls = autodict() def trace_begin(): - pass + print "Press control+C to stop and show the summary" def trace_end(): print_syscall_totals() @@ -35,9 +39,10 @@ def trace_end(): def raw_syscalls__sys_enter(event_name, context, common_cpu, common_secs, common_nsecs, common_pid, common_comm, id, args): - if for_comm is not None: - if common_comm != for_comm: - return + + 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: @@ -61,4 +66,4 @@ def print_syscall_totals(): id_keys = syscalls[comm][pid].keys() for id, val in sorted(syscalls[comm][pid].iteritems(), \ key = lambda(k, v): (v, k), reverse = True): - print " %-38d %10d\n" % (id, val), + print " %-38s %10d\n" % (syscall_name(id), val), -- 2.20.1