Merge tag 'amd-drm-next-6.5-2023-06-09' of https://gitlab.freedesktop.org/agd5f/linux...

[linux.git] / tools / perf / scripts / python / futex-contention.py

diff --git a/tools/perf/scripts/python/futex-contention.py b/tools/perf/scripts/python/futex-contention.py
index 0c4841acf75dadcb5b7ca3e4572a47a687c67d86..7e884d46f92066fcfd29f5a3222f90bbdd0640e4 100644 (file)
--- 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 [max: %d ns, min %d ns]" %
+              (process_names[tid], tid, lock, count, avg, max, min))