mercurial/lsprofcalltree.py
author Jun Wu <quark@fb.com>
Fri, 07 Jul 2017 18:51:46 -0700
changeset 33332 3b7cb3d17137
parent 27618 5a988b3c9645
child 40194 1ae0faa14797
permissions -rw-r--r--
rebase: use scmutil.cleanupnodes (issue5606) (BC) This patch migrates rebase to use scmutil.cleanupnodes API. It simplifies the code and makes rebase code reusable inside a transaction. This is a BC because the backup file is no longer strip-backup/*-backup.hg, but strip-backup/*-rebase.hg. The latter looks more reasonable since the directory name is "strip-backup" so there is no need to repeat "backup". I think the backup file name change is probably fine as a BC, since we have changed it before (aa4a1672583e) and didn't get complains. The end result of this series will be a much more consistent and unified backup names: command | old backup file suffix | new backup file suffix ------------------------------------------------------------------- amend | amend-backup.hg | amend.hg histedit | backup.hg (could be 2 files) | histedit.hg (single file) rebase | backup.hg | rebase.hg strip | backup.hg | backup.hg (note: backup files are under .hg/strip-backup) It also fixes issue5606 as a side effect because the new "delayedstrip" code path will carefully examine nodes (safestriproots) to make sure orphaned changesets won't get stripped by accident. Some warning messages are changed to the new "warning: orphaned descendants detected, not stripping HASHES", which provides more information about exactly what changesets are left behind. Another minor behavior change is when there is an obsoleted changeset with a successor in the destination branch, bookmarks pointing to that obsoleted changeset will not be moved. I have commented in test-rebase-obsolete.t explaining why that is more desirable.

"""
lsprofcalltree.py - lsprof output which is readable by kcachegrind

Authors:
    * David Allouche <david <at> allouche.net>
    * Jp Calderone & Itamar Shtull-Trauring
    * Johan Dahlin

This software may be used and distributed according to the terms
of the GNU General Public License, incorporated herein by reference.
"""

from __future__ import absolute_import, print_function

def label(code):
    if isinstance(code, str):
        return '~' + code    # built-in functions ('~' sorts at the end)
    else:
        return '%s %s:%d' % (code.co_name,
                             code.co_filename,
                             code.co_firstlineno)

class KCacheGrind(object):
    def __init__(self, profiler):
        self.data = profiler.getstats()
        self.out_file = None

    def output(self, out_file):
        self.out_file = out_file
        print('events: Ticks', file=out_file)
        self._print_summary()
        for entry in self.data:
            self._entry(entry)

    def _print_summary(self):
        max_cost = 0
        for entry in self.data:
            totaltime = int(entry.totaltime * 1000)
            max_cost = max(max_cost, totaltime)
        print('summary: %d' % max_cost, file=self.out_file)

    def _entry(self, entry):
        out_file = self.out_file

        code = entry.code
        if isinstance(code, str):
            print('fi=~', file=out_file)
        else:
            print('fi=%s' % code.co_filename, file=out_file)
        print('fn=%s' % label(code), file=out_file)

        inlinetime = int(entry.inlinetime * 1000)
        if isinstance(code, str):
            print('0 ', inlinetime, file=out_file)
        else:
            print('%d %d' % (code.co_firstlineno, inlinetime), file=out_file)

        # recursive calls are counted in entry.calls
        if entry.calls:
            calls = entry.calls
        else:
            calls = []

        if isinstance(code, str):
            lineno = 0
        else:
            lineno = code.co_firstlineno

        for subentry in calls:
            self._subentry(lineno, subentry)
        print(file=out_file)

    def _subentry(self, lineno, subentry):
        out_file = self.out_file
        code = subentry.code
        print('cfn=%s' % label(code), file=out_file)
        if isinstance(code, str):
            print('cfi=~', file=out_file)
            print('calls=%d 0' % subentry.callcount, file=out_file)
        else:
            print('cfi=%s' % code.co_filename, file=out_file)
            print('calls=%d %d' % (
                subentry.callcount, code.co_firstlineno), file=out_file)

        totaltime = int(subentry.totaltime * 1000)
        print('%d %d' % (lineno, totaltime), file=out_file)