diff options
| author | Tom Zanussi <[email protected]> | 2010-01-27 08:27:57 +0000 |
|---|---|---|
| committer | Frederic Weisbecker <[email protected]> | 2010-02-25 03:07:29 +0000 |
| commit | 7e4b21b84c43bb8a80b916e40718ca4ed1fc52e6 (patch) | |
| tree | cafeb2a119cfa4aad3252f8d9ad164b276153f3e /tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py | |
| parent | perf/scripts: Remove check-perf-trace from listed scripts (diff) | |
| download | kernel-7e4b21b84c43bb8a80b916e40718ca4ed1fc52e6.tar.gz kernel-7e4b21b84c43bb8a80b916e40718ca4ed1fc52e6.zip | |
perf/scripts: Add Python scripting engine
Add base support for Python scripting to perf trace.
Signed-off-by: Tom Zanussi <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Steven Rostedt <[email protected]>
Cc: Keiichi KII <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: Frederic Weisbecker <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py')
| -rw-r--r-- | tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py b/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py new file mode 100644 index 000000000000..83e91435ed09 --- /dev/null +++ b/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py @@ -0,0 +1,25 @@ +# Util.py - Python extension for perf trace, miscellaneous utility code +# +# Copyright (C) 2010 by Tom Zanussi <[email protected]> +# +# This software may be distributed under the terms of the GNU General +# Public License ("GPL") version 2 as published by the Free Software +# Foundation. + +NSECS_PER_SEC = 1000000000 + +def avg(total, n): + return total / n + +def nsecs(secs, nsecs): + return secs * NSECS_PER_SEC + nsecs + +def nsecs_secs(nsecs): + return nsecs / NSECS_PER_SEC + +def nsecs_nsecs(nsecs): + return nsecs % NSECS_PER_SEC + +def nsecs_str(nsecs): + str = "%5u.%09u" % (nsecs_secs(nsecs), nsecs_nsecs(nsecs)), + return str |