Add program to create summary CSVs from a set of seivots.

1 files changed, 79 insertions, 0 deletions

diff --git a/seivots-to-csv b/seivots-to-csv
new file mode 100755
index 0000000..552b21f
--- /dev/null
+++ b/seivots-to-csv
@@ -0,0 +1,79 @@
+#!/usr/bin/python
+# Copyright 2011  Lars Wirzenius
+# 
+# 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 3 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 cliapp
+import ConfigParser
+import csv
+
+
+class SeivotToCsv(cliapp.Application):
+
+    def process_args(self, args):
+        seivots = []
+        for filename in args:
+            seivots.append(self.read_seivot(filename))
+
+        def getkey(s):
+            return (s.get('meta', 'revision'), 
+                     s.get('meta', 'larch-revision'))
+        seivots.sort(key=getkey)
+        
+        for op in ['backup', 'restore', 'list_files', 'forget']:
+            f = open('%s.csv' % op, 'w')
+            writer = csv.writer(f)
+            writer.writerow(['obnam', 'larch', 'gen0 time (s)', 
+                             'gen0 RAM (MiB)', 'slowest inc (s)', 
+                             'largest RAM inc (MiB)'])
+            for seivot in seivots:
+                row = self.get_row_data(op, seivot)
+                writer.writerow(row)
+            f.close()
+
+    def read_seivot(self, filename):
+        cp = ConfigParser.ConfigParser()
+        cp.read([filename])
+        return cp
+
+    def get_row_data(self, op, seivot):
+        row = ['r%s' % seivot.get('meta', 'revision'),
+               'r%s' % seivot.get('meta', 'larch-revision'),
+               seivot.getfloat('0', '%s.real' % op),
+               self.bytesize(seivot.getfloat('0', '%s.maxrss' % op)),
+               self.find_slowest_incremental(op, seivot),
+               self.find_largest_incremental(op, seivot)]
+        return row
+
+    def values(self, op, suffix, seivot):
+        for section in seivot.sections():
+            if section not in ['meta', '0']:
+                yield seivot.getfloat(section, '%s.%s' % (op, suffix))
+
+    def find_slowest_incremental(self, op, seivot):
+        v = self.values(op, 'real', seivot)
+        return min(list(v) or [0.0])
+
+    def find_largest_incremental(self, op, seivot):
+        v = self.values(op, 'maxrss', seivot)
+        return self.bytesize(min(list(v) or [0.0]))
+
+    def bytesize(self, kilobytes):
+        return '%.1f' % (float(kilobytes) / 1024)
+
+
+if __name__ == '__main__':
+    SeivotToCsv().run()
+