Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / tools / perf / scripts / python / syscall-counts.py

diff --git a/kernel/tools/perf/scripts/python/syscall-counts.py b/kernel/tools/perf/scripts/python/syscall-counts.py
new file mode 100644 (file)
index 0000000..e66a773
--- /dev/null
+++ b/kernel/tools/perf/scripts/python/syscall-counts.py
@@ -0,0 +1,64 @@
+# 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.
+
+import os
+import 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\n" % (for_comm),
+    else:
+           print "\nsyscall events:\n\n",
+
+    print "%-40s  %10s\n" % ("event", "count"),
+    print "%-40s  %10s\n" % ("----------------------------------------", \
+                                 "-----------"),
+
+    for id, val in sorted(syscalls.iteritems(), key = lambda(k, v): (v, k), \
+                                 reverse = True):
+           print "%-40s  %10d\n" % (syscall_name(id), val),