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view tests/test-completion.t @ 26243:836291420d53
revlog: optionally cache the full text when adding revisions
revlog instances can cache the full text of a single revision. Typically
the most recently read revision is cached.
When adding a delta group via addgroup() and _addrevision(), the
full text isn't always computed: sometimes only the passed in delta is
sufficient for adding a new revision to the revlog.
When writing the changelog from a delta group, the just-added full
text revision is always read immediately after it is written because
the changegroup code needs to extract the set of files from the entry.
In other words, revision() is *always* being called and caching the full
text of the just-added revision is guaranteed to result in a cache hit,
making the cache worthwhile.
This patch adds support to _addrevision() for always building and
caching the full text. This option is currently only active when
processing changelog entries from a changegroup.
While the total number of revision() calls is the same, the location
matters: buildtext() calls into revision() on the base revision when
building the full text of the just-added revision. Since the previous
revision's _addrevision() built the full text and the the previous
revision is likely the base revision, this means that the base
revision's full text is likely cached and can be used to compute the
current full text from just a delta. No extra I/O required.
The end result is the changelog isn't opened and read after adding every
revision from a changegroup.
On my 2013 MacBook Pro running OS X 10.10.5 from an SSD and Python 2.7,
this patch impacted the time taken to apply ~262,000 changesets from a
mozilla-central gzip bundle:
before: ~43s
after: ~32s
~25% reduction in changelog processing times. Not bad.
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Sat, 12 Sep 2015 16:11:17 -0700 |
parents | 84c00f03e06c |
children | 8c7d8d5e1e0f |
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Show all commands except debug commands $ hg debugcomplete add addremove annotate archive backout bisect bookmarks branch branches bundle cat clone commit config copy diff export files forget graft grep heads help identify import incoming init locate log manifest merge outgoing parents paths phase pull push recover remove rename resolve revert rollback root serve status summary tag tags tip unbundle update verify version Show all commands that start with "a" $ hg debugcomplete a add addremove annotate archive Do not show debug commands if there are other candidates $ hg debugcomplete d diff Show debug commands if there are no other candidates $ hg debugcomplete debug debugancestor debugbuilddag debugbundle debugcheckstate debugcommands debugcomplete debugconfig debugdag debugdata debugdate debugdirstate debugdiscovery debugfileset debugfsinfo debuggetbundle debugignore debugindex debugindexdot debuginstall debugknown debuglabelcomplete debuglocks debugnamecomplete debugobsolete debugpathcomplete debugpushkey debugpvec debugrebuilddirstate debugrebuildfncache debugrename debugrevlog debugrevspec debugsetparents debugsub debugsuccessorssets debugwalk debugwireargs Do not show the alias of a debug command if there are other candidates (this should hide rawcommit) $ hg debugcomplete r recover remove rename resolve revert rollback root Show the alias of a debug command if there are no other candidates $ hg debugcomplete rawc Show the global options $ hg debugcomplete --options | sort --config --cwd --debug --debugger --encoding --encodingmode --help --hidden --noninteractive --profile --quiet --repository --time --traceback --verbose --version -R -h -q -v -y Show the options for the "serve" command $ hg debugcomplete --options serve | sort --accesslog --address --certificate --cmdserver --config --cwd --daemon --daemon-pipefds --debug --debugger --encoding --encodingmode --errorlog --help --hidden --ipv6 --name --noninteractive --pid-file --port --prefix --profile --quiet --repository --stdio --style --templates --time --traceback --verbose --version --web-conf -6 -A -E -R -a -d -h -n -p -q -t -v -y Show an error if we use --options with an ambiguous abbreviation $ hg debugcomplete --options s hg: command 's' is ambiguous: serve showconfig status summary [255] Show all commands + options $ hg debugcommands add: include, exclude, subrepos, dry-run annotate: rev, follow, no-follow, text, user, file, date, number, changeset, line-number, ignore-all-space, ignore-space-change, ignore-blank-lines, include, exclude, template clone: noupdate, updaterev, rev, branch, pull, uncompressed, ssh, remotecmd, insecure commit: addremove, close-branch, amend, secret, edit, interactive, include, exclude, message, logfile, date, user, subrepos diff: rev, change, text, git, nodates, noprefix, show-function, reverse, ignore-all-space, ignore-space-change, ignore-blank-lines, unified, stat, root, include, exclude, subrepos export: output, switch-parent, rev, text, git, nodates forget: include, exclude init: ssh, remotecmd, insecure log: follow, follow-first, date, copies, keyword, rev, removed, only-merges, user, only-branch, branch, prune, patch, git, limit, no-merges, stat, graph, style, template, include, exclude merge: force, rev, preview, tool pull: update, force, rev, bookmark, branch, ssh, remotecmd, insecure push: force, rev, bookmark, branch, new-branch, ssh, remotecmd, insecure remove: after, force, subrepos, include, exclude serve: accesslog, daemon, daemon-pipefds, errorlog, port, address, prefix, name, web-conf, webdir-conf, pid-file, stdio, cmdserver, templates, style, ipv6, certificate status: all, modified, added, removed, deleted, clean, unknown, ignored, no-status, copies, print0, rev, change, include, exclude, subrepos, template summary: remote update: clean, check, date, rev, tool addremove: similarity, subrepos, include, exclude, dry-run archive: no-decode, prefix, rev, type, subrepos, include, exclude backout: merge, commit, parent, rev, edit, tool, include, exclude, message, logfile, date, user bisect: reset, good, bad, skip, extend, command, noupdate bookmarks: force, rev, delete, rename, inactive, template branch: force, clean branches: active, closed, template bundle: force, rev, branch, base, all, type, ssh, remotecmd, insecure cat: output, rev, decode, include, exclude config: untrusted, edit, local, global copy: after, force, include, exclude, dry-run debugancestor: debugbuilddag: mergeable-file, overwritten-file, new-file debugbundle: all debugcheckstate: debugcommands: debugcomplete: options debugdag: tags, branches, dots, spaces debugdata: changelog, manifest, dir debugdate: extended debugdirstate: nodates, datesort debugdiscovery: old, nonheads, ssh, remotecmd, insecure debugfileset: rev debugfsinfo: debuggetbundle: head, common, type debugignore: debugindex: changelog, manifest, dir, format debugindexdot: debuginstall: debugknown: debuglabelcomplete: debuglocks: force-lock, force-wlock debugnamecomplete: debugobsolete: flags, record-parents, rev, date, user debugpathcomplete: full, normal, added, removed debugpushkey: debugpvec: debugrebuilddirstate: rev, minimal debugrebuildfncache: debugrename: rev debugrevlog: changelog, manifest, dir, dump debugrevspec: optimize debugsetparents: debugsub: rev debugsuccessorssets: debugwalk: include, exclude debugwireargs: three, four, five, ssh, remotecmd, insecure files: rev, print0, include, exclude, template, subrepos graft: rev, continue, edit, log, force, currentdate, currentuser, date, user, tool, dry-run grep: print0, all, text, follow, ignore-case, files-with-matches, line-number, rev, user, date, include, exclude heads: rev, topo, active, closed, style, template help: extension, command, keyword identify: rev, num, id, branch, tags, bookmarks, ssh, remotecmd, insecure import: strip, base, edit, force, no-commit, bypass, partial, exact, prefix, import-branch, message, logfile, date, user, similarity incoming: force, newest-first, bundle, rev, bookmarks, branch, patch, git, limit, no-merges, stat, graph, style, template, ssh, remotecmd, insecure, subrepos locate: rev, print0, fullpath, include, exclude manifest: rev, all, template outgoing: force, rev, newest-first, bookmarks, branch, patch, git, limit, no-merges, stat, graph, style, template, ssh, remotecmd, insecure, subrepos parents: rev, style, template paths: phase: public, draft, secret, force, rev recover: rename: after, force, include, exclude, dry-run resolve: all, list, mark, unmark, no-status, tool, include, exclude, template revert: all, date, rev, no-backup, interactive, include, exclude, dry-run rollback: dry-run, force root: tag: force, local, rev, remove, edit, message, date, user tags: template tip: patch, git, style, template unbundle: update verify: version: $ hg init a $ cd a $ echo fee > fee $ hg ci -q -Amfee $ hg tag fee $ mkdir fie $ echo dead > fie/dead $ echo live > fie/live $ hg bookmark fo $ hg branch -q fie $ hg ci -q -Amfie $ echo fo > fo $ hg branch -qf default $ hg ci -q -Amfo $ echo Fum > Fum $ hg ci -q -AmFum $ hg bookmark Fum Test debugpathcomplete $ hg debugpathcomplete f fee fie fo $ hg debugpathcomplete -f f fee fie/dead fie/live fo $ hg rm Fum $ hg debugpathcomplete -r F Fum Test debugnamecomplete $ hg debugnamecomplete Fum default fee fie fo tip $ hg debugnamecomplete f fee fie fo