[PATCH 1/2] perf script: autopep8 futex-contention

* [PATCH 1/2] perf script: autopep8 futex-contention
@ 2020-09-21 20:19 Hagen Paul Pfeifer
  2020-09-21 20:19 ` [PATCH 2/2] perf script: add min, max to futex-contention Hagen Paul Pfeifer
  0 siblings, 1 reply; 6+ messages in thread
From: Hagen Paul Pfeifer @ 2020-09-21 20:19 UTC (permalink / raw)
  To: linux-kernel; +Cc: Hagen Paul Pfeifer, Arnaldo Carvalho de Melo

10 years leaves its mark! Python has evolved and so has its style guide.
Even with vim it is getting hard to follow the no longer valid
guidelines (spaces vs. tabs).

Autopep8 this code to modernize it!

Signed-off-by: Hagen Paul Pfeifer <hagen@jauu.net>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/scripts/python/futex-contention.py | 51 ++++++++++---------
 1 file changed, 28 insertions(+), 23 deletions(-)

diff --git a/tools/perf/scripts/python/futex-contention.py b/tools/perf/scripts/python/futex-contention.py
index 0c4841acf75d..c440f02627dd 100644
--- a/tools/perf/scripts/python/futex-contention.py
+++ b/tools/perf/scripts/python/futex-contention.py
@@ -12,41 +12,46 @@
 
 from __future__ import print_function
 
-import os, sys
-sys.path.append(os.environ['PERF_EXEC_PATH'] + '/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
+import os
+import sys
+sys.path.append(os.environ['PERF_EXEC_PATH'] +
+                '/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
 from Util import *
 
 process_names = {}
 thread_thislock = {}
 thread_blocktime = {}
 
-lock_waits = {} # long-lived stats on (tid,lock) blockage elapsed time
-process_names = {} # long-lived pid-to-execname mapping
+lock_waits = {}  # long-lived stats on (tid,lock) blockage elapsed time
+process_names = {}  # long-lived pid-to-execname mapping
+
 
 def syscalls__sys_enter_futex(event, ctxt, cpu, s, ns, tid, comm, callchain,
-			      nr, uaddr, op, val, utime, uaddr2, val3):
-	cmd = op & FUTEX_CMD_MASK
-	if cmd != FUTEX_WAIT:
-		return # we don't care about originators of WAKE events
+                              nr, uaddr, op, val, utime, uaddr2, val3):
+    cmd = op & FUTEX_CMD_MASK
+    if cmd != FUTEX_WAIT:
+        return  # we don't care about originators of WAKE events
+
+    process_names[tid] = comm
+    thread_thislock[tid] = uaddr
+    thread_blocktime[tid] = nsecs(s, ns)
 
-	process_names[tid] = comm
-	thread_thislock[tid] = uaddr
-	thread_blocktime[tid] = nsecs(s, ns)
 
 def syscalls__sys_exit_futex(event, ctxt, cpu, s, ns, tid, comm, callchain,
-			     nr, ret):
-	if tid in thread_blocktime:
-		elapsed = nsecs(s, ns) - thread_blocktime[tid]
-		add_stats(lock_waits, (tid, thread_thislock[tid]), elapsed)
-		del thread_blocktime[tid]
-		del thread_thislock[tid]
+                             nr, ret):
+    if tid in thread_blocktime:
+        elapsed = nsecs(s, ns) - thread_blocktime[tid]
+        add_stats(lock_waits, (tid, thread_thislock[tid]), elapsed)
+        del thread_blocktime[tid]
+        del thread_thislock[tid]
+
 
 def trace_begin():
-	print("Press control+C to stop and show the summary")
+    print("Press control+C to stop and show the summary")
 
-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))
 
+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))
-- 
2.28.0


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