Mercurial > hg
view contrib/revsetbenchmarks.py @ 24440:27ad6b91f5c2
clone: add progress support to hardlink clones (issue3059)
author | Augie Fackler <augie@google.com> |
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date | Fri, 13 Mar 2015 18:28:11 -0400 |
parents | e53f6b72a0e4 |
children | a6bcd70cd9c2 |
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#!/usr/bin/env python # Measure the performance of a list of revsets against multiple revisions # defined by parameter. Checkout one by one and run perfrevset with every # revset in the list to benchmark its performance. # # - First argument is a revset of mercurial own repo to runs against. # - Second argument is the file from which the revset array will be taken # If second argument is omitted read it from standard input # # You should run this from the root of your mercurial repository. # # This script also does one run of the current version of mercurial installed # to compare performance. import sys import os from subprocess import check_call, Popen, CalledProcessError, STDOUT, PIPE # cannot use argparse, python 2.7 only from optparse import OptionParser def check_output(*args, **kwargs): kwargs.setdefault('stderr', PIPE) kwargs.setdefault('stdout', PIPE) proc = Popen(*args, **kwargs) output, error = proc.communicate() if proc.returncode != 0: raise CalledProcessError(proc.returncode, ' '.join(args[0])) return output def update(rev): """update the repo to a revision""" try: check_call(['hg', 'update', '--quiet', '--check', str(rev)]) except CalledProcessError, exc: print >> sys.stderr, 'update to revision %s failed, aborting' % rev sys.exit(exc.returncode) def perf(revset, target=None): """run benchmark for this very revset""" try: cmd = ['./hg', '--config', 'extensions.perf=' + os.path.join(contribdir, 'perf.py'), 'perfrevset', revset] if target is not None: cmd.append('-R') cmd.append(target) output = check_output(cmd, stderr=STDOUT) output = output.lstrip('!') # remove useless ! in this context return output.strip() except CalledProcessError, exc: print >> sys.stderr, 'abort: cannot run revset benchmark' sys.exit(exc.returncode) def printrevision(rev): """print data about a revision""" sys.stdout.write("Revision: ") sys.stdout.flush() check_call(['hg', 'log', '--rev', str(rev), '--template', '{desc|firstline}\n']) def getrevs(spec): """get the list of rev matched by a revset""" try: out = check_output(['hg', 'log', '--template={rev}\n', '--rev', spec]) except CalledProcessError, exc: print >> sys.stderr, "abort, can't get revision from %s" % spec sys.exit(exc.returncode) return [r for r in out.split() if r] parser = OptionParser(usage="usage: %prog [options] <revs>") parser.add_option("-f", "--file", help="read revset from FILE (stdin if omitted)", metavar="FILE") parser.add_option("-R", "--repo", help="run benchmark on REPO", metavar="REPO") (options, args) = parser.parse_args() if len(sys.argv) < 2: parser.print_help() sys.exit(255) # the directory where both this script and the perf.py extension live. contribdir = os.path.dirname(__file__) target_rev = args[0] revsetsfile = sys.stdin if options.file: revsetsfile = open(options.file) revsets = [l.strip() for l in revsetsfile if not l.startswith('#')] print "Revsets to benchmark" print "----------------------------" for idx, rset in enumerate(revsets): print "%i) %s" % (idx, rset) print "----------------------------" print revs = getrevs(target_rev) results = [] for r in revs: print "----------------------------" printrevision(r) print "----------------------------" update(r) res = [] results.append(res) for idx, rset in enumerate(revsets): data = perf(rset, target=options.repo) res.append(data) print "%i)" % idx, data sys.stdout.flush() print "----------------------------" print """ Result by revset ================ """ print 'Revision:', revs for idx, rev in enumerate(revs): sys.stdout.write('%i) ' % idx) sys.stdout.flush() printrevision(rev) print print for ridx, rset in enumerate(revsets): print "revset #%i: %s" % (ridx, rset) for idx, data in enumerate(results): print '%i) %s' % (idx, data[ridx]) print