projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 47902f36 TZ |
1 | # system call top |
| 2 | # (c) 2010, Tom Zanussi <tzanussi@gmail.com> | |
| 3 | # Licensed under the terms of the GNU GPL License version 2 | |
| 4 | # | |
| 5 | # Periodically displays system-wide system call totals, broken down by | |
| 6 | # syscall. If a [comm] arg is specified, only syscalls called by | |
| 7 | # [comm] are displayed. If an [interval] arg is specified, the display | |
| 8 | # will be refreshed every [interval] seconds. The default interval is | |
| 9 | # 3 seconds. | |
| 10 | ||
| 2e7d1e3f | 11 | import os, sys, thread, time |
| 47902f36 TZ |
12 | |
| 13 | sys.path.append(os.environ['PERF_EXEC_PATH'] + \ | |
| 14 | '/scripts/python/Perf-Trace-Util/lib/Perf/Trace') | |
| 15 | ||
| 16 | from perf_trace_context import * | |
| 17 | from Core import * | |
| 18 | from Util import * | |
| 19 | ||
| 765532c8 | 20 | usage = "perf script -s sctop.py [comm] [interval]\n"; |
| 47902f36 TZ |
21 | |
| 22 | for_comm = None | |
| 23 | default_interval = 3 | |
| 24 | interval = default_interval | |
| 25 | ||
| 26 | if len(sys.argv) > 3: | |
| 27 | sys.exit(usage) | |
| 28 | ||
| 29 | if len(sys.argv) > 2: | |
| 30 | for_comm = sys.argv[1] | |
| 31 | interval = int(sys.argv[2]) | |
| 32 | elif len(sys.argv) > 1: | |
| 33 | try: | |
| 34 | interval = int(sys.argv[1]) | |
| 35 | except ValueError: | |
| 36 | for_comm = sys.argv[1] | |
| 37 | interval = default_interval | |
| 38 | ||
| 39 | syscalls = autodict() | |
| 40 | ||
| 41 | def trace_begin(): | |
| 42 | thread.start_new_thread(print_syscall_totals, (interval,)) | |
| 43 | pass | |
| 44 | ||
| 45 | def raw_syscalls__sys_enter(event_name, context, common_cpu, | |
| 46 | common_secs, common_nsecs, common_pid, common_comm, | |
| 0f5f5bcd | 47 | common_callchain, id, args): |
| 47902f36 TZ |
48 | if for_comm is not None: |
| 49 | if common_comm != for_comm: | |
| 50 | return | |
| 51 | try: | |
| 52 | syscalls[id] += 1 | |
| 53 | except TypeError: | |
| 54 | syscalls[id] = 1 | |
| 55 | ||
| 07100877 DBO |
56 | def syscalls__sys_enter(event_name, context, common_cpu, |
| 57 | common_secs, common_nsecs, common_pid, common_comm, | |
| 58 | id, args): | |
| 59 | raw_syscalls__sys_enter(**locals()) | |
| 60 | ||
| 47902f36 TZ |
61 | def print_syscall_totals(interval): |
| 62 | while 1: | |
| 63 | clear_term() | |
| 64 | if for_comm is not None: | |
| 65 | print "\nsyscall events for %s:\n\n" % (for_comm), | |
| 66 | else: | |
| 67 | print "\nsyscall events:\n\n", | |
| 68 | ||
| 69 | print "%-40s %10s\n" % ("event", "count"), | |
| 70 | print "%-40s %10s\n" % ("----------------------------------------", \ | |
| 71 | "----------"), | |
| 72 | ||
| 73 | for id, val in sorted(syscalls.iteritems(), key = lambda(k, v): (v, k), \ | |
| 74 | reverse = True): | |
| 75 | try: | |
| 2e7d1e3f | 76 | print "%-40s %10d\n" % (syscall_name(id), val), |
| 47902f36 TZ |
77 | except TypeError: |
| 78 | pass | |
| 79 | syscalls.clear() | |
| 80 | time.sleep(interval) |