76 lines
2.2 KiB
Diff
76 lines
2.2 KiB
Diff
From e7b8fe03e8b76ec4aa4797759cd849fcf792b33c Mon Sep 17 00:00:00 2001
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From: Harald Hoyer <harald@redhat.com>
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Date: Wed, 17 Aug 2011 10:08:23 +0200
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Subject: [PATCH] profile.py: parse the output of "dracut --profile" for
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profiling
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---
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profile.py | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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1 files changed, 58 insertions(+), 0 deletions(-)
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create mode 100644 profile.py
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diff --git a/profile.py b/profile.py
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new file mode 100644
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index 0000000..e1d0cab
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--- /dev/null
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+++ b/profile.py
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@@ -0,0 +1,58 @@
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+#
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+# parse the output of "dracut --profile" and produce profiling information
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+#
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+# Copyright 2011 Harald Hoyer <harald@redhat.com>
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+# Copyright 2011 Red Hat, Inc. All rights reserved.
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+#
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+# This program is free software; you can redistribute it and/or modify
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+# it under the terms of the GNU General Public License as published by
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+# the Free Software Foundation; either version 2 of the License, or
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+# (at your option) any later version.
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+#
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+# This program is distributed in the hope that it will be useful,
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+# but WITHOUT ANY WARRANTY; without even the implied warranty of
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+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+# GNU General Public License for more details.
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+#
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+# You should have received a copy of the GNU General Public License
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+# along with this program. If not, see <http://www.gnu.org/licenses/>.
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+#
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+
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+import sys
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+import operator
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+import re
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+loglines = sys.stdin
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+
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+logpats = r'[+]+[ \t]+([^ \t]+)[ \t]+([^ \t:]+):[ ]+.*'
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+
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+logpat = re.compile(logpats)
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+
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+groups = (logpat.match(line) for line in loglines)
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+tuples = (g.groups() for g in groups if g)
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+
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+def gen_times(t):
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+ oldx=None
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+ for x in t:
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+ fx=float(x[0])
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+ if oldx:
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+ #print fx - float(oldx[0]), x[0], x[1], oldx[0], oldx[1]
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+ yield (fx - float(oldx[0]), oldx[1])
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+
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+ oldx = x
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+
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+colnames = ('time','line')
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+
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+log = (dict(zip(colnames,t)) for t in gen_times(tuples))
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+
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+if __name__ == '__main__':
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+ e={}
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+ for x in log:
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+ if not x['line'] in e:
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+ e[x['line']] = x['time']
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+ else:
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+ e[x['line']] += x['time']
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+
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+ sorted_x = sorted(e.iteritems(), key=operator.itemgetter(1), reverse=True)
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+ for x in sorted_x:
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+ print x[0], x[1]
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+
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