From bd9f924f1673cdffbbcaa2c5bfa9b8bfb9f38b1b Mon Sep 17 00:00:00 2001
From: Craig Tiller <craig.tiller@gmail.com>
Date: Fri, 1 May 2015 16:24:41 -0700
Subject: [PATCH] Basic profiler analyzer
---
tools/profile_analyzer/profile_analyzer.py | 87 ++++++++++++++++++++++
1 file changed, 87 insertions(+)
create mode 100755 tools/profile_analyzer/profile_analyzer.py
diff --git a/tools/profile_analyzer/profile_analyzer.py b/tools/profile_analyzer/profile_analyzer.py
new file mode 100755
index 0000000000..f15277491f
--- /dev/null
+++ b/tools/profile_analyzer/profile_analyzer.py
@@ -0,0 +1,87 @@
+#!/usr/bin/env python
+# Copyright 2015, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+# * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+"""
+Read GRPC basic profiles, analyze the data.
+
+Usage:
+ bins/basicprof/qps_smoke_test > log
+ cat log | tools/profile_analyzer/profile_analyzer.py
+"""
+
+
+import collections
+import re
+import sys
+
+# Create a regex to parse output of the C core basic profiler,
+# as defined in src/core/profiling/basic_timers.c.
+_RE_LINE = re.compile(r'GRPC_LAT_PROF ' +
+ r'([0-9]+\.[0-9]+) 0x([0-9a-f]+) ([{}.]) ([0-9]+) ' +
+ r'([^ ]+) ([^ ]+) ([0-9]+)')
+
+Entry = collections.namedtuple(
+ 'Entry',
+ ['time', 'thread', 'type', 'tag', 'id', 'file', 'line'])
+
+def entries():
+ for line in sys.stdin:
+ m = _RE_LINE.match(line)
+ if not m: continue
+ yield Entry(time=float(m.group(1)),
+ thread=m.group(2),
+ type=m.group(3),
+ tag=int(m.group(4)),
+ id=m.group(5),
+ file=m.group(6),
+ line=m.group(7))
+
+threads = collections.defaultdict(lambda: collections.defaultdict(list))
+times = collections.defaultdict(list)
+
+for entry in entries():
+ thread = threads[entry.thread]
+ if entry.type == '{':
+ thread[entry.tag].append(entry)
+ elif entry.type == '}':
+ last = thread[entry.tag].pop()
+ times[entry.tag].append(entry.time - last.time)
+
+def percentile(vals, pct):
+ return sorted(vals)[int(len(vals) * pct / 100.0)]
+
+print 'tag 50%/90%/95%/99% us'
+for tag in sorted(times.keys()):
+ vals = times[tag]
+ print '%d %.2f/%.2f/%.2f/%.2f' % (tag,
+ percentile(vals, 50),
+ percentile(vals, 90),
+ percentile(vals, 95),
+ percentile(vals, 99))
--
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