Mercurial > hg
view doc/check-seclevel.py @ 44363:f7459da77f23
nodemap: introduce an option to use mmap to read the nodemap mapping
The performance and memory benefit is much greater if we don't have to copy all
the data in memory for each information. So we introduce an option (on by
default) to read the data using mmap.
This changeset is the last one definition the API for index support nodemap
data. (they have to be able to use the mmaping).
Below are some benchmark comparing the best we currently have in 5.3 with the
final step of this series (using the persistent nodemap implementation in
Rust). The benchmark run `hg perfindex` with various revset and the following
variants:
Before:
* do not use the persistent nodemap
* use the CPython implementation of the index for nodemap
* use mmapping of the changelog index
After:
* use the MixedIndex Rust code, with the NodeTree object for nodemap access
(still in review)
* use the persistent nodemap data from disk
* access the persistent nodemap data through mmap
* use mmapping of the changelog index
The persistent nodemap greatly speed up most operation on very large
repositories. Some of the previously very fast lookup end up a bit slower because
the persistent nodemap has to be setup. However the absolute slowdown is very
small and won't matters in the big picture.
Here are some numbers (in seconds) for the reference copy of mozilla-try:
Revset Before After abs-change speedup
-10000: 0.004622 0.005532 0.000910 × 0.83
-10: 0.000050 0.000132 0.000082 × 0.37
tip 0.000052 0.000085 0.000033 × 0.61
0 + (-10000:) 0.028222 0.005337 -0.022885 × 5.29
0 0.023521 0.000084 -0.023437 × 280.01
(-10000:) + 0 0.235539 0.005308 -0.230231 × 44.37
(-10:) + :9 0.232883 0.000180 -0.232703 ×1293.79
(-10000:) + (:99) 0.238735 0.005358 -0.233377 × 44.55
:99 + (-10000:) 0.317942 0.005593 -0.312349 × 56.84
:9 + (-10:) 0.313372 0.000179 -0.313193 ×1750.68
:9 0.316450 0.000143 -0.316307 ×2212.93
On smaller repositories, the cost of nodemap related operation is not as big, so
the win is much more modest. Yet it helps shaving a handful of millisecond here
and there.
Here are some numbers (in seconds) for the reference copy of mercurial:
Revset Before After abs-change speedup
-10: 0.000065 0.000097 0.000032 × 0.67
tip 0.000063 0.000078 0.000015 × 0.80
0 0.000561 0.000079 -0.000482 × 7.10
-10000: 0.004609 0.003648 -0.000961 × 1.26
0 + (-10000:) 0.005023 0.003715 -0.001307 × 1.35
(-10:) + :9 0.002187 0.000108 -0.002079 ×20.25
(-10000:) + 0 0.006252 0.003716 -0.002536 × 1.68
(-10000:) + (:99) 0.006367 0.003707 -0.002660 × 1.71
:9 + (-10:) 0.003846 0.000110 -0.003736 ×34.96
:9 0.003854 0.000099 -0.003755 ×38.92
:99 + (-10000:) 0.007644 0.003778 -0.003866 × 2.02
Differential Revision: https://phab.mercurial-scm.org/D7894
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Tue, 11 Feb 2020 11:18:52 +0100 |
parents | e8cf9ad52a78 |
children | c102b704edb5 |
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#!/usr/bin/env python # # checkseclevel - checking section title levels in each online help document from __future__ import absolute_import import optparse import os import sys # import from the live mercurial repo os.environ['HGMODULEPOLICY'] = 'py' sys.path.insert(0, "..") from mercurial import demandimport demandimport.enable() from mercurial import ( commands, extensions, help, minirst, ui as uimod, ) table = commands.table helptable = help.helptable level2mark = [b'"', b'=', b'-', b'.', b'#'] reservedmarks = [b'"'] mark2level = {} for m, l in zip(level2mark, range(len(level2mark))): if m not in reservedmarks: mark2level[m] = l initlevel_topic = 0 initlevel_cmd = 1 initlevel_ext = 1 initlevel_ext_cmd = 3 def showavailables(ui, initlevel): avail = ' available marks and order of them in this help: %s\n' % ( ', '.join(['%r' % (m * 4) for m in level2mark[initlevel + 1 :]]) ) ui.warn(avail.encode('utf-8')) def checkseclevel(ui, doc, name, initlevel): ui.notenoi18n('checking "%s"\n' % name) if not isinstance(doc, bytes): doc = doc.encode('utf-8') blocks, pruned = minirst.parse(doc, 0, ['verbose']) errorcnt = 0 curlevel = initlevel for block in blocks: if block[b'type'] != b'section': continue mark = block[b'underline'] title = block[b'lines'][0] if (mark not in mark2level) or (mark2level[mark] <= initlevel): ui.warn( ( 'invalid section mark %r for "%s" of %s\n' % (mark * 4, title, name) ).encode('utf-8') ) showavailables(ui, initlevel) errorcnt += 1 continue nextlevel = mark2level[mark] if curlevel < nextlevel and curlevel + 1 != nextlevel: ui.warnnoi18n( 'gap of section level at "%s" of %s\n' % (title, name) ) showavailables(ui, initlevel) errorcnt += 1 continue ui.notenoi18n( 'appropriate section level for "%s %s"\n' % (mark * (nextlevel * 2), title) ) curlevel = nextlevel return errorcnt def checkcmdtable(ui, cmdtable, namefmt, initlevel): errorcnt = 0 for k, entry in cmdtable.items(): name = k.split(b"|")[0].lstrip(b"^") if not entry[0].__doc__: ui.notenoi18n( 'skip checking %s: no help document\n' % (namefmt % name) ) continue errorcnt += checkseclevel( ui, entry[0].__doc__, namefmt % name, initlevel ) return errorcnt def checkhghelps(ui): errorcnt = 0 for h in helptable: names, sec, doc = h[0:3] if callable(doc): doc = doc(ui) errorcnt += checkseclevel( ui, doc, '%s help topic' % names[0], initlevel_topic ) errorcnt += checkcmdtable(ui, table, '%s command', initlevel_cmd) for name in sorted( list(extensions.enabled()) + list(extensions.disabled()) ): mod = extensions.load(ui, name, None) if not mod.__doc__: ui.notenoi18n( 'skip checking %s extension: no help document\n' % name ) continue errorcnt += checkseclevel( ui, mod.__doc__, '%s extension' % name, initlevel_ext ) cmdtable = getattr(mod, 'cmdtable', None) if cmdtable: errorcnt += checkcmdtable( ui, cmdtable, '%%s command of %s extension' % name, initlevel_ext_cmd, ) return errorcnt def checkfile(ui, filename, initlevel): if filename == '-': filename = 'stdin' doc = sys.stdin.read() else: with open(filename) as fp: doc = fp.read() ui.notenoi18n( 'checking input from %s with initlevel %d\n' % (filename, initlevel) ) return checkseclevel(ui, doc, 'input from %s' % filename, initlevel) def main(): optparser = optparse.OptionParser( """%prog [options] This checks all help documents of Mercurial (topics, commands, extensions and commands of them), if no file is specified by --file option. """ ) optparser.add_option( "-v", "--verbose", help="enable additional output", action="store_true" ) optparser.add_option( "-d", "--debug", help="debug mode", action="store_true" ) optparser.add_option( "-f", "--file", help="filename to read in (or '-' for stdin)", action="store", default="", ) optparser.add_option( "-t", "--topic", help="parse file as help topic", action="store_const", dest="initlevel", const=0, ) optparser.add_option( "-c", "--command", help="parse file as help of core command", action="store_const", dest="initlevel", const=1, ) optparser.add_option( "-e", "--extension", help="parse file as help of extension", action="store_const", dest="initlevel", const=1, ) optparser.add_option( "-C", "--extension-command", help="parse file as help of extension command", action="store_const", dest="initlevel", const=3, ) optparser.add_option( "-l", "--initlevel", help="set initial section level manually", action="store", type="int", default=0, ) (options, args) = optparser.parse_args() ui = uimod.ui.load() ui.setconfig(b'ui', b'verbose', options.verbose, b'--verbose') ui.setconfig(b'ui', b'debug', options.debug, b'--debug') if options.file: if checkfile(ui, options.file, options.initlevel): sys.exit(1) else: if checkhghelps(ui): sys.exit(1) if __name__ == "__main__": main()