1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/toolkit/components/telemetry/gen-histogram-bucket-ranges.py Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,56 @@
1.4 +#!/usr/bin/env python
1.5 +# This Source Code Form is subject to the terms of the Mozilla Public
1.6 +# License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 +# file, You can obtain one at http://mozilla.org/MPL/2.0/.
1.8 +
1.9 +# Write out detailed histogram information, including the ranges of the
1.10 +# buckets specified by each histogram.
1.11 +
1.12 +import sys
1.13 +import re
1.14 +import histogram_tools
1.15 +import json
1.16 +
1.17 +from collections import OrderedDict
1.18 +
1.19 +# Keep this in sync with TelemetryPing.
1.20 +startup_histogram_re = re.compile("SQLITE|HTTP|SPDY|CACHE|DNS")
1.21 +
1.22 +def main(argv):
1.23 + filename = argv[0]
1.24 + all_histograms = OrderedDict()
1.25 +
1.26 + for histogram in histogram_tools.from_file(filename):
1.27 + name = histogram.name()
1.28 + parameters = OrderedDict()
1.29 + table = {
1.30 + 'boolean': '2',
1.31 + 'flag': '3',
1.32 + 'enumerated': '1',
1.33 + 'linear': '1',
1.34 + 'exponential': '0'
1.35 + }
1.36 + # Use __setitem__ because Python lambdas are so limited.
1.37 + histogram_tools.table_dispatch(histogram.kind(), table,
1.38 + lambda k: parameters.__setitem__('kind', k))
1.39 + if histogram.low() == 0:
1.40 + parameters['min'] = 1
1.41 + else:
1.42 + parameters['min'] = histogram.low()
1.43 +
1.44 + try:
1.45 + buckets = histogram.ranges()
1.46 + parameters['buckets'] = buckets
1.47 + parameters['max'] = buckets[-1]
1.48 + parameters['bucket_count'] = len(buckets)
1.49 + except histogram_tools.DefinitionException:
1.50 + continue
1.51 +
1.52 + all_histograms.update({ name: parameters });
1.53 +
1.54 + if startup_histogram_re.search(name) is not None:
1.55 + all_histograms.update({ "STARTUP_" + name: parameters })
1.56 +
1.57 + print json.dumps({ 'histograms': all_histograms})
1.58 +
1.59 +main(sys.argv[1:])
