From bedbef8ad3e75a304af6361af235302bcc61d06b Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 14 May 2024 06:39:01 +0000
Subject: [PATCH] 修改内核路径
---
kernel/tools/perf/scripts/python/futex-contention.py | 53 ++++++++++++++++++++++++++++++-----------------------
1 files changed, 30 insertions(+), 23 deletions(-)
diff --git a/kernel/tools/perf/scripts/python/futex-contention.py b/kernel/tools/perf/scripts/python/futex-contention.py
index 0f5cf43..7e884d4 100644
--- a/kernel/tools/perf/scripts/python/futex-contention.py
+++ b/kernel/tools/perf/scripts/python/futex-contention.py
@@ -10,41 +10,48 @@
#
# Measures futex contention
-import os, sys
-sys.path.append(os.environ['PERF_EXEC_PATH'] + '/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
+from __future__ import print_function
+
+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 thread_blocktime.has_key(tid):
- 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)
-
+ 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))
--
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