perf: break down long line

contrib/perf.py

@@ -1,163 +1,165
 # perf.py - performance test routines
 '''helper extension to measure performance'''
 
 from mercurial import cmdutil, match, commands
 import time, os, sys
 
 def timer(func, title=None):
     results = []
     begin = time.time()
     count = 0
     while 1:
         ostart = os.times()
         cstart = time.time()
         r = func()
         cstop = time.time()
         ostop = os.times()
         count += 1
         a, b = ostart, ostop
         results.append((cstop - cstart, b[0] - a[0], b[1]-a[1]))
         if cstop - begin > 3 and count >= 100:
             break
         if cstop - begin > 10 and count >= 3:
             break
     if title:
         sys.stderr.write("! %s\n" % title)
     if r:
         sys.stderr.write("! result: %s\n" % r)
     m = min(results)
     sys.stderr.write("! wall %f comb %f user %f sys %f (best of %d)\n"
                      % (m[0], m[1] + m[2], m[1], m[2], count))
 
 def perfwalk(ui, repo, *pats):
     try:
         m = cmdutil.match(repo, pats, {})
         timer(lambda: len(list(repo.dirstate.walk(m, [], True, False))))
     except:
         try:
             m = cmdutil.match(repo, pats, {})
             timer(lambda: len([b for a, b, c in repo.dirstate.statwalk([], m)]))
         except:
             timer(lambda: len(list(cmdutil.walk(repo, pats, {}))))
 
 def perfstatus(ui, repo, *pats):
     #m = match.always(repo.root, repo.getcwd())
     #timer(lambda: sum(map(len, repo.dirstate.status(m, [], False, False, False))))
     timer(lambda: sum(map(len, repo.status())))
 
 def perfheads(ui, repo):
     timer(lambda: len(repo.changelog.heads()))
 
 def perftags(ui, repo):
     import mercurial.changelog, mercurial.manifest
     def t():
         repo.changelog = mercurial.changelog.changelog(repo.sopener)
         repo.manifest = mercurial.manifest.manifest(repo.sopener)
         repo._tags = None
         return len(repo.tags())
     timer(t)
 
 def perfdirstate(ui, repo):
     "a" in repo.dirstate
     def d():
         repo.dirstate.invalidate()
         "a" in repo.dirstate
     timer(d)
 
 def perfdirstatedirs(ui, repo):
     "a" in repo.dirstate
     def d():
         "a" in repo.dirstate._dirs
         del repo.dirstate._dirs
     timer(d)
 
 def perfmanifest(ui, repo):
     def d():
         t = repo.manifest.tip()
         m = repo.manifest.read(t)
         repo.manifest.mapcache = None
         repo.manifest._cache = None
     timer(d)
 
 def perfindex(ui, repo):
     import mercurial.changelog
     def d():
         t = repo.changelog.tip()
         repo.changelog = mercurial.changelog.changelog(repo.sopener)
         repo.changelog._loadindexmap()
     timer(d)
 
 def perfstartup(ui, repo):
     cmd = sys.argv[0]
     def d():
         os.system("HGRCPATH= %s version -q > /dev/null" % cmd)
     timer(d)
 
 def perfparents(ui, repo):
     nl = [repo.changelog.node(i) for i in xrange(1000)]
     def d():
         for n in nl:
             repo.changelog.parents(n)
     timer(d)
 
 def perflookup(ui, repo, rev):
     timer(lambda: len(repo.lookup(rev)))
 
 def perflog(ui, repo, **opts):
     ui.pushbuffer()
     timer(lambda: commands.log(ui, repo, rev=[], date='', user='',
                                copies=opts.get('rename')))
     ui.popbuffer()
 
 def perftemplating(ui, repo):
     ui.pushbuffer()
     timer(lambda: commands.log(ui, repo, rev=[], date='', user='',
                                template='{date|shortdate} [{rev}:{node|short}]'
                                ' {author|person}: {desc|firstline}\n'))
     ui.popbuffer()
 
 def perfdiffwd(ui, repo):
     """Profile diff of working directory changes"""
     options = {
         'w': 'ignore_all_space',
         'b': 'ignore_space_change',
         'B': 'ignore_blank_lines',
         }
 
     for diffopt in ('', 'w', 'b', 'B', 'wB'):
         opts = dict((options[c], '1') for c in diffopt)
         def d():
             ui.pushbuffer()
             commands.diff(ui, repo, **opts)
             ui.popbuffer()
         title = 'diffopts: %s' % (diffopt and ('-' + diffopt) or 'none')
         timer(d, title)
 
 def perfrevlog(ui, repo, file_, **opts):
     from mercurial import revlog
     dist = opts['dist']
     def d():
         r = revlog.revlog(lambda fn: open(fn, 'rb'), file_)
         for x in xrange(0, len(r), dist):
             r.revision(r.node(x))
 
     timer(d)
 
 cmdtable = {
     'perflookup': (perflookup, []),
     'perfparents': (perfparents, []),
     'perfstartup': (perfstartup, []),
     'perfstatus': (perfstatus, []),
     'perfwalk': (perfwalk, []),
     'perfmanifest': (perfmanifest, []),
     'perfindex': (perfindex, []),
     'perfheads': (perfheads, []),
     'perftags': (perftags, []),
     'perfdirstate': (perfdirstate, []),
     'perfdirstatedirs': (perfdirstate, []),
     'perflog': (perflog,
                 [('', 'rename', False, 'ask log to follow renames')]),
     'perftemplating': (perftemplating, []),
     'perfdiffwd': (perfdiffwd, []),
-    'perfrevlog': (perfrevlog, [('d', 'dist', 100, 'distance between the revisions')],"[INDEXFILE]"),
+    'perfrevlog': (perfrevlog,
+                   [('d', 'dist', 100, 'distance between the revisions')],
+                   "[INDEXFILE]"),
 }