From e7b8fe03e8b76ec4aa4797759cd849fcf792b33c Mon Sep 17 00:00:00 2001

From: Harald Hoyer <harald@redhat.com>

Date: Wed, 17 Aug 2011 10:08:23 +0200

Subject: [PATCH] profile.py: parse the output of "dracut --profile" for

 profiling

---

 profile.py |   58 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

 1 files changed, 58 insertions(+), 0 deletions(-)

 create mode 100644 profile.py

diff --git a/profile.py b/profile.py

new file mode 100644

index 0000000..e1d0cab

--- /dev/null

+++ b/profile.py

@@ -0,0 +1,58 @@

+#

+# parse the output of "dracut --profile" and produce profiling information

+#

+# Copyright 2011 Harald Hoyer <harald@redhat.com>

+# Copyright 2011 Red Hat, Inc.  All rights reserved.

+#

+# This program is free software; you can redistribute it and/or modify

+# it under the terms of the GNU General Public License as published by

+# the Free Software Foundation; either version 2 of the License, or

+# (at your option) any later version.

+#

+# This program is distributed in the hope that it will be useful,

+# but WITHOUT ANY WARRANTY; without even the implied warranty of

+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

+# GNU General Public License for more details.

+#

+# You should have received a copy of the GNU General Public License

+# along with this program.  If not, see <http://www.gnu.org/licenses/>.

+#

+

+import sys

+import operator

+import re

+loglines = sys.stdin

+

+logpats  = r'[+]+[ \t]+([^ \t]+)[ \t]+([^ \t:]+):[ ]+.*'

+

+logpat   = re.compile(logpats)

+

+groups   = (logpat.match(line) for line in loglines)

+tuples   = (g.groups() for g in groups if g)

+

+def gen_times(t):

+    oldx=None

+    for x in t:

+        fx=float(x[0])

+        if oldx:

+            #print fx - float(oldx[0]), x[0], x[1], oldx[0], oldx[1]

+            yield (fx - float(oldx[0]), oldx[1])

+

+        oldx = x

+

+colnames = ('time','line')

+

+log      = (dict(zip(colnames,t)) for t in gen_times(tuples))

+

+if __name__ == '__main__':

+    e={}

+    for x in log:

+        if not x['line'] in e:

+            e[x['line']] = x['time']

+        else:

+            e[x['line']] += x['time']

+

+    sorted_x = sorted(e.iteritems(), key=operator.itemgetter(1), reverse=True)

+    for x in sorted_x:

+        print x[0], x[1]

+