diff options
Diffstat (limited to 'benchtests')
| -rw-r--r-- | benchtests/scripts/benchout_strings.schema.json | 44 | ||||
| -rwxr-xr-x | benchtests/scripts/compare_strings.py | 129 |
2 files changed, 173 insertions, 0 deletions
diff --git a/benchtests/scripts/benchout_strings.schema.json b/benchtests/scripts/benchout_strings.schema.json new file mode 100644 index 0000000000..7c9a67134b --- /dev/null +++ b/benchtests/scripts/benchout_strings.schema.json @@ -0,0 +1,44 @@ +{ + "title": "string benchmark", + "type": "object", + "properties": { + "timing_type": { + "type": "string" + }, + "functions": { + "title": "Associative array of functions", + "type": "object", + "patternProperties": { + "^[_a-zA-Z][_a-zA-Z0-9]+$": { + "title": "Function names", + "type": "object", + "properties": { + "bench-variant": {"type": "string"}, + "ifuncs": { + "type": "array", + "items": {"type": "string"} + }, + "results": { + "type": "array", + "items": { + "type": "object", + "properties": { + "timings": { + "type": "array", + "items": {"type": "number"} + } + }, + "additionalProperties": {"type": "number"}, + "minProperties": 2 + } + } + }, + "additionalProperties": false + } + }, + "minProperties": 1 + } + }, + "required": ["timing_type", "functions"], + "additionalProperties": false +} diff --git a/benchtests/scripts/compare_strings.py b/benchtests/scripts/compare_strings.py new file mode 100755 index 0000000000..9d73ec41f4 --- /dev/null +++ b/benchtests/scripts/compare_strings.py @@ -0,0 +1,129 @@ +#!/usr/bin/python +# Copyright (C) 2017 Free Software Foundation, Inc. +# This file is part of the GNU C Library. +# +# The GNU C Library is free software; you can redistribute it and/or +# modify it under the terms of the GNU Lesser General Public +# License as published by the Free Software Foundation; either +# version 2.1 of the License, or (at your option) any later version. +# +# The GNU C Library 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 +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public +# License along with the GNU C Library; if not, see +# <http://www.gnu.org/licenses/>. +"""Compare results of string functions + +Given a string benchmark result file, print a table with comparisons with a +baseline. The baseline is the first function, which typically is the builtin +function. +""" +import sys +import os +import json +import pylab + +try: + import jsonschema as validator +except ImportError: + print('Could not find jsonschema module.') + raise + + +def parse_file(filename, schema_filename): + with open(schema_filename, 'r') as schemafile: + schema = json.load(schemafile) + with open(filename, 'r') as benchfile: + bench = json.load(benchfile) + validator.validate(bench, schema) + return bench + + +def draw_graph(f, v, ifuncs, results): + """Plot graphs for functions + + Plot line graphs for each of the ifuncs + + Args: + f: Function name + v: Benchmark variant for the function. + ifuncs: List of ifunc names + results: Dictionary of results for each test criterion + """ + xkeys = results.keys() + + pylab.clf() + fig = pylab.figure(frameon=False) + fig.set_size_inches(32, 18) + pylab.ylabel('Performance improvement from base') + X = range(len(xkeys)) + pylab.xticks(X, xkeys) + + i = 0 + + while i < len(ifuncs): + Y = [results[k][i] for k in xkeys] + lines = pylab.plot(X, Y, label=':'+ifuncs[i]) + i = i + 1 + + pylab.legend() + pylab.grid() + pylab.savefig('%s-%s.png' % (f, v), bbox_inches='tight') + + +def process_results(results, attrs): + """ Process results and print them + + Args: + results: JSON dictionary of results + attrs: Attributes that form the test criteria + """ + + for f in results['functions'].keys(): + print('Function: %s' % f) + print('\t'.join(results['functions'][f]['ifuncs'])) + v = results['functions'][f]['bench-variant'] + print('Variant: %s' % v) + print("=" * 80) + graph_res = {} + for res in results['functions'][f]['results']: + attr_list = ['%s=%s' % (a, res[a]) for a in attrs] + first = True + key = ','.join(attr_list) + sys.stdout.write('%s: \t' % key) + graph_res[key] = res['timings'] + for t in res['timings']: + sys.stdout.write ('%.2f' % t) + if first: + first = False + else: + diff = (res['timings'][0] - t) * 100 / res['timings'][0] + + sys.stdout.write (' (%.2f%%)' % diff) + sys.stdout.write('\t') + print('') + draw_graph(f, v, results['functions'][f]['ifuncs'], graph_res) + + +def main(args): + """Program Entry Point + + Take a string benchmark output file and compare timings. + """ + if len(args) < 3: + print('Usage: %s <input file> <schema file> attr1 [attr2 ...]' % sys.argv[0]) + sys.exit(os.EX_USAGE) + + filename = args[0] + schema_filename = args[1] + attrs = args[2:] + + results = parse_file(filename, schema_filename) + process_results(results, attrs) + + +if __name__ == '__main__': + main(sys.argv[1:]) |