[PATCH 2/2] perf script: add min, max to futex-contention

[Hagen Paul Pfeifer]

Average is quite informative, but the outliners - especially max - are
also of interest.

Before:

mutex-locker[793299] lock 5637ec61e080 contended 3400 times, 446 avg ns
mutex-locker[793301] lock 5637ec61e080 contended 3563 times, 385 avg ns
mutex-locker[793300] lock 5637ec61e080 contended 3110 times, 1855 avg ns

After:

mutex-locker[795251] lock 55b14e6dd080 contended 3853 times, 1279 avg ns [max: 12270 us, min 340 us]
mutex-locker[795253] lock 55b14e6dd080 contended 2911 times, 518 avg ns [max: 51660261 us, min 347 us]
mutex-locker[795252] lock 55b14e6dd080 contended 3843 times, 385 avg ns [max: 24323998 us, min 338 us]

Signed-off-by: Hagen Paul Pfeifer <hagen@xxxxxxxx>
Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/scripts/python/futex-contention.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/scripts/python/futex-contention.py b/tools/perf/scripts/python/futex-contention.py
index c440f02627dd..e8a02aecabd9 100644
--- a/tools/perf/scripts/python/futex-contention.py
+++ b/tools/perf/scripts/python/futex-contention.py
@@ -53,5 +53,5 @@ def trace_begin():
 def trace_end():
     for (tid, lock) in lock_waits:
         min, max, avg, count = lock_waits[tid, lock]
-        print("%s[%d] lock %x contended %d times, %d avg ns" %
-              (process_names[tid], tid, lock, count, avg))
+        print("%s[%d] lock %x contended %d times, %d avg ns [max: %d us, min %d us]" %
+              (process_names[tid], tid, lock, count, avg, max, min))
-- 
2.28.0