Import Traceline, a Windows performance trace event logger.

tools/traceline/traceline/scripts/scstats.py

Index: tools/traceline/traceline/scripts/scstats.py
diff --git a/tools/traceline/traceline/scripts/scstats.py b/tools/traceline/traceline/scripts/scstats.py
new file mode 100755
index 0000000000000000000000000000000000000000..21f28d846a8843fc23f9a829bdb6e8ee34a441a9
--- /dev/null
+++ b/tools/traceline/traceline/scripts/scstats.py
@@ -0,0 +1,26 @@
+# Copyright (c) 2009 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import sys
+
+execfile(os.path.join(
+  os.path.dirname(os.path.join(os.path.curdir, __file__)),
+  'syscalls.py'))
+
+def parseEvents(z):
+  calls = { }
+  for e in z:
+    if e['eventtype'] == 'EVENT_TYPE_SYSCALL' and e['done'] > 0:
+      delta = e['done'] - e['ms']
+      syscall = e['syscall']
+      tid = e['thread']
+      ms = e['ms']
+      calls[syscall] = calls.get(syscall, 0) + delta
+      print '%f - %f - %x - %d %s' % (
+          delta, ms, tid, syscall, syscalls.get(syscall, 'unknown'))
+
+  #for syscall, delta in calls.items():
+  #  print '%f - %d %s' % (delta, syscall, syscalls.get(syscall, 'unknown'))
+
+execfile(sys.argv[1])