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07100877ea
Older kernels (e.g., RHEL6) do system call tracing via the
syscalls:sys_{enter,exit} tracepoints rather than using raw_syscalls:*.
Update perf python and perl scripts to fallback to syscalls:* when
raw_syscalls:* isn't available.
Signed-off-by: Daniel Bristot de Oliveira <bristot@redhat.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Luis Claudio R. Goncalves <lgoncalv@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/5a6c64081a3375bc3bc66351b14559678ef4d71e.1402507908.git.bristot@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
64 lines
1.6 KiB
Python
64 lines
1.6 KiB
Python
# system call counts
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# (c) 2010, Tom Zanussi <tzanussi@gmail.com>
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# Licensed under the terms of the GNU GPL License version 2
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#
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# Displays system-wide system call totals, broken down by syscall.
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# If a [comm] arg is specified, only syscalls called by [comm] are displayed.
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import os
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import sys
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sys.path.append(os.environ['PERF_EXEC_PATH'] + \
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'/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
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from perf_trace_context import *
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from Core import *
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from Util import syscall_name
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usage = "perf script -s syscall-counts.py [comm]\n";
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for_comm = None
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if len(sys.argv) > 2:
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sys.exit(usage)
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if len(sys.argv) > 1:
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for_comm = sys.argv[1]
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syscalls = autodict()
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def trace_begin():
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print "Press control+C to stop and show the summary"
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def trace_end():
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print_syscall_totals()
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def raw_syscalls__sys_enter(event_name, context, common_cpu,
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common_secs, common_nsecs, common_pid, common_comm,
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id, args):
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if for_comm is not None:
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if common_comm != for_comm:
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return
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try:
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syscalls[id] += 1
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except TypeError:
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syscalls[id] = 1
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def syscalls__sys_enter(event_name, context, common_cpu,
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common_secs, common_nsecs, common_pid, common_comm,
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id, args):
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raw_syscalls__sys_enter(**locals())
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def print_syscall_totals():
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if for_comm is not None:
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print "\nsyscall events for %s:\n\n" % (for_comm),
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else:
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print "\nsyscall events:\n\n",
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print "%-40s %10s\n" % ("event", "count"),
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print "%-40s %10s\n" % ("----------------------------------------", \
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"-----------"),
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for id, val in sorted(syscalls.iteritems(), key = lambda(k, v): (v, k), \
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reverse = True):
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print "%-40s %10d\n" % (syscall_name(id), val),
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