修改内核路径

hc

2024-05-14 bedbef8ad3e75a304af6361af235302bcc61d06b

 kernel/tools/perf/scripts/python/futex-contention.py
..
..
@@ -10,41 +10,48 @@
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 #
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 # Measures futex contention
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-import os, sys
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-sys.path.append(os.environ['PERF_EXEC_PATH'] + '/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
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+from __future__ import print_function
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+
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+import os
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+import sys
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+sys.path.append(os.environ['PERF_EXEC_PATH'] +
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+                '/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
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 from Util import *
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 process_names = {}
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 thread_thislock = {}
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 thread_blocktime = {}
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-lock_waits = {} # long-lived stats on (tid,lock) blockage elapsed time
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-process_names = {} # long-lived pid-to-execname mapping
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+lock_waits = {}  # long-lived stats on (tid,lock) blockage elapsed time
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+process_names = {}  # long-lived pid-to-execname mapping
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+
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 def syscalls__sys_enter_futex(event, ctxt, cpu, s, ns, tid, comm, callchain,
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-			      nr, uaddr, op, val, utime, uaddr2, val3):
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-	cmd = op & FUTEX_CMD_MASK
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-	if cmd != FUTEX_WAIT:
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-		return # we don't care about originators of WAKE events
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+                              nr, uaddr, op, val, utime, uaddr2, val3):
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+    cmd = op & FUTEX_CMD_MASK
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+    if cmd != FUTEX_WAIT:
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+        return  # we don't care about originators of WAKE events
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-	process_names[tid] = comm
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-	thread_thislock[tid] = uaddr
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-	thread_blocktime[tid] = nsecs(s, ns)
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+    process_names[tid] = comm
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+    thread_thislock[tid] = uaddr
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+    thread_blocktime[tid] = nsecs(s, ns)
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+
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 def syscalls__sys_exit_futex(event, ctxt, cpu, s, ns, tid, comm, callchain,
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-			     nr, ret):
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-	if thread_blocktime.has_key(tid):
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-		elapsed = nsecs(s, ns) - thread_blocktime[tid]
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-		add_stats(lock_waits, (tid, thread_thislock[tid]), elapsed)
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-		del thread_blocktime[tid]
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-		del thread_thislock[tid]
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+                             nr, ret):
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+    if tid in thread_blocktime:
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+        elapsed = nsecs(s, ns) - thread_blocktime[tid]
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+        add_stats(lock_waits, (tid, thread_thislock[tid]), elapsed)
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+        del thread_blocktime[tid]
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+        del thread_thislock[tid]
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+
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 def trace_begin():
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-	print "Press control+C to stop and show the summary"
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+    print("Press control+C to stop and show the summary")
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+
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 def trace_end():
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-	for (tid, lock) in lock_waits:
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-		min, max, avg, count = lock_waits[tid, lock]
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-		print "%s[%d] lock %x contended %d times, %d avg ns" % \
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-		      (process_names[tid], tid, lock, count, avg)
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-
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+    for (tid, lock) in lock_waits:
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+        min, max, avg, count = lock_waits[tid, lock]
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+        print("%s[%d] lock %x contended %d times, %d avg ns [max: %d ns, min %d ns]" %
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+              (process_names[tid], tid, lock, count, avg, max, min))