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perf: add command for measuring revlog chunk operations...
perf: add command for measuring revlog chunk operations Upcoming commits will teach revlogs to leverage the new compression engine API so that new compression formats can more easily be leveraged in revlogs. We want to be sure this refactoring doesn't regress performance. So this commit introduces "perfrevchunks" to explicitly test performance of reading, decompressing, and recompressing revlog chunks. Here is output when run on the mozilla-unified repo: $ hg perfrevlogchunks -c ! read ! wall 0.346603 comb 0.350000 user 0.340000 sys 0.010000 (best of 28) ! read w/ reused fd ! wall 0.337707 comb 0.340000 user 0.320000 sys 0.020000 (best of 30) ! read batch ! wall 0.013206 comb 0.020000 user 0.000000 sys 0.020000 (best of 221) ! read batch w/ reused fd ! wall 0.013259 comb 0.030000 user 0.010000 sys 0.020000 (best of 222) ! chunk ! wall 1.909939 comb 1.910000 user 1.900000 sys 0.010000 (best of 6) ! chunk batch ! wall 1.750677 comb 1.760000 user 1.740000 sys 0.020000 (best of 6) ! compress ! wall 5.668004 comb 5.670000 user 5.670000 sys 0.000000 (best of 3) $ hg perfrevlogchunks -m ! read ! wall 0.365834 comb 0.370000 user 0.350000 sys 0.020000 (best of 26) ! read w/ reused fd ! wall 0.350160 comb 0.350000 user 0.320000 sys 0.030000 (best of 28) ! read batch ! wall 0.024777 comb 0.020000 user 0.000000 sys 0.020000 (best of 119) ! read batch w/ reused fd ! wall 0.024895 comb 0.030000 user 0.000000 sys 0.030000 (best of 118) ! chunk ! wall 2.514061 comb 2.520000 user 2.480000 sys 0.040000 (best of 4) ! chunk batch ! wall 2.380788 comb 2.380000 user 2.360000 sys 0.020000 (best of 5) ! compress ! wall 9.815297 comb 9.820000 user 9.820000 sys 0.000000 (best of 3) We already see some interesting data, such as how much slower non-batched chunk reading is and that zlib compression appears to be >2x slower than decompression. I didn't have the data when I wrote this commit message, but I ran this on Mozilla's NFS-based Mercurial server and the time for reading with a reused file descriptor was faster. So I think it is worth testing both with and without file descriptor reuse so we can make informed decisions about recycling file descriptors.

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r30037:cd7276f7 merge default
r30451:94ca0e13 default
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test-globalopts.t
450 lines | 13.9 KiB | text/troff | Tads3Lexer
$ hg init a
$ cd a
$ echo a > a
$ hg ci -A -d'1 0' -m a
adding a
$ cd ..
$ hg init b
$ cd b
$ echo b > b
$ hg ci -A -d'1 0' -m b
adding b
$ cd ..
$ hg clone a c
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd c
$ cat >> .hg/hgrc <<EOF
> [paths]
> relative = ../a
> EOF
$ hg pull -f ../b
pulling from ../b
searching for changes
warning: repository is unrelated
requesting all changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files (+1 heads)
(run 'hg heads' to see heads, 'hg merge' to merge)
$ hg merge
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ cd ..
Testing -R/--repository:
$ hg -R a tip
changeset: 0:8580ff50825a
tag: tip
user: test
date: Thu Jan 01 00:00:01 1970 +0000
summary: a
$ hg --repository b tip
changeset: 0:b6c483daf290
tag: tip
user: test
date: Thu Jan 01 00:00:01 1970 +0000
summary: b
-R with a URL:
$ hg -R file:a identify
8580ff50825a tip
$ hg -R file://localhost/`pwd`/a/ identify
8580ff50825a tip
-R with path aliases:
$ cd c
$ hg -R default identify
8580ff50825a tip
$ hg -R relative identify
8580ff50825a tip
$ echo '[paths]' >> $HGRCPATH
$ echo 'relativetohome = a' >> $HGRCPATH
$ HOME=`pwd`/../ hg -R relativetohome identify
8580ff50825a tip
$ cd ..
#if no-outer-repo
Implicit -R:
$ hg ann a/a
0: a
$ hg ann a/a a/a
0: a
$ hg ann a/a b/b
abort: no repository found in '$TESTTMP' (.hg not found)!
[255]
$ hg -R b ann a/a
abort: a/a not under root '$TESTTMP/b' (glob)
(consider using '--cwd b')
[255]
$ hg log
abort: no repository found in '$TESTTMP' (.hg not found)!
[255]
#endif
Abbreviation of long option:
$ hg --repo c tip
changeset: 1:b6c483daf290
tag: tip
parent: -1:000000000000
user: test
date: Thu Jan 01 00:00:01 1970 +0000
summary: b
earlygetopt with duplicate options (36d23de02da1):
$ hg --cwd a --cwd b --cwd c tip
changeset: 1:b6c483daf290
tag: tip
parent: -1:000000000000
user: test
date: Thu Jan 01 00:00:01 1970 +0000
summary: b
$ hg --repo c --repository b -R a tip
changeset: 0:8580ff50825a
tag: tip
user: test
date: Thu Jan 01 00:00:01 1970 +0000
summary: a
earlygetopt short option without following space:
$ hg -q -Rb tip
0:b6c483daf290
earlygetopt with illegal abbreviations:
$ hg --confi "foo.bar=baz"
abort: option --config may not be abbreviated!
[255]
$ hg --cw a tip
abort: option --cwd may not be abbreviated!
[255]
$ hg --rep a tip
abort: option -R has to be separated from other options (e.g. not -qR) and --repository may only be abbreviated as --repo!
[255]
$ hg --repositor a tip
abort: option -R has to be separated from other options (e.g. not -qR) and --repository may only be abbreviated as --repo!
[255]
$ hg -qR a tip
abort: option -R has to be separated from other options (e.g. not -qR) and --repository may only be abbreviated as --repo!
[255]
$ hg -qRa tip
abort: option -R has to be separated from other options (e.g. not -qR) and --repository may only be abbreviated as --repo!
[255]
Testing --cwd:
$ hg --cwd a parents
changeset: 0:8580ff50825a
tag: tip
user: test
date: Thu Jan 01 00:00:01 1970 +0000
summary: a
Testing -y/--noninteractive - just be sure it is parsed:
$ hg --cwd a tip -q --noninteractive
0:8580ff50825a
$ hg --cwd a tip -q -y
0:8580ff50825a
Testing -q/--quiet:
$ hg -R a -q tip
0:8580ff50825a
$ hg -R b -q tip
0:b6c483daf290
$ hg -R c --quiet parents
0:8580ff50825a
1:b6c483daf290
Testing -v/--verbose:
$ hg --cwd c head -v
changeset: 1:b6c483daf290
tag: tip
parent: -1:000000000000
user: test
date: Thu Jan 01 00:00:01 1970 +0000
files: b
description:
b
changeset: 0:8580ff50825a
user: test
date: Thu Jan 01 00:00:01 1970 +0000
files: a
description:
a
$ hg --cwd b tip --verbose
changeset: 0:b6c483daf290
tag: tip
user: test
date: Thu Jan 01 00:00:01 1970 +0000
files: b
description:
b
Testing --config:
$ hg --cwd c --config paths.quuxfoo=bar paths | grep quuxfoo > /dev/null && echo quuxfoo
quuxfoo
$ hg --cwd c --config '' tip -q
abort: malformed --config option: '' (use --config section.name=value)
[255]
$ hg --cwd c --config a.b tip -q
abort: malformed --config option: 'a.b' (use --config section.name=value)
[255]
$ hg --cwd c --config a tip -q
abort: malformed --config option: 'a' (use --config section.name=value)
[255]
$ hg --cwd c --config a.= tip -q
abort: malformed --config option: 'a.=' (use --config section.name=value)
[255]
$ hg --cwd c --config .b= tip -q
abort: malformed --config option: '.b=' (use --config section.name=value)
[255]
Testing --debug:
$ hg --cwd c log --debug
changeset: 1:b6c483daf2907ce5825c0bb50f5716226281cc1a
tag: tip
phase: public
parent: -1:0000000000000000000000000000000000000000
parent: -1:0000000000000000000000000000000000000000
manifest: 1:23226e7a252cacdc2d99e4fbdc3653441056de49
user: test
date: Thu Jan 01 00:00:01 1970 +0000
files+: b
extra: branch=default
description:
b
changeset: 0:8580ff50825a50c8f716709acdf8de0deddcd6ab
phase: public
parent: -1:0000000000000000000000000000000000000000
parent: -1:0000000000000000000000000000000000000000
manifest: 0:a0c8bcbbb45c63b90b70ad007bf38961f64f2af0
user: test
date: Thu Jan 01 00:00:01 1970 +0000
files+: a
extra: branch=default
description:
a
Testing --traceback:
$ hg --cwd c --config x --traceback id 2>&1 | grep -i 'traceback'
Traceback (most recent call last):
Testing --time:
$ hg --cwd a --time id
8580ff50825a tip
time: real * (glob)
Testing --version:
$ hg --version -q
Mercurial Distributed SCM * (glob)
hide outer repo
$ hg init
Testing -h/--help:
$ hg -h
Mercurial Distributed SCM
list of commands:
add add the specified files on the next commit
addremove add all new files, delete all missing files
annotate show changeset information by line for each file
archive create an unversioned archive of a repository revision
backout reverse effect of earlier changeset
bisect subdivision search of changesets
bookmarks create a new bookmark or list existing bookmarks
branch set or show the current branch name
branches list repository named branches
bundle create a changegroup file
cat output the current or given revision of files
clone make a copy of an existing repository
commit commit the specified files or all outstanding changes
config show combined config settings from all hgrc files
copy mark files as copied for the next commit
diff diff repository (or selected files)
export dump the header and diffs for one or more changesets
files list tracked files
forget forget the specified files on the next commit
graft copy changes from other branches onto the current branch
grep search revision history for a pattern in specified files
heads show branch heads
help show help for a given topic or a help overview
identify identify the working directory or specified revision
import import an ordered set of patches
incoming show new changesets found in source
init create a new repository in the given directory
log show revision history of entire repository or files
manifest output the current or given revision of the project manifest
merge merge another revision into working directory
outgoing show changesets not found in the destination
paths show aliases for remote repositories
phase set or show the current phase name
pull pull changes from the specified source
push push changes to the specified destination
recover roll back an interrupted transaction
remove remove the specified files on the next commit
rename rename files; equivalent of copy + remove
resolve redo merges or set/view the merge status of files
revert restore files to their checkout state
root print the root (top) of the current working directory
serve start stand-alone webserver
status show changed files in the working directory
summary summarize working directory state
tag add one or more tags for the current or given revision
tags list repository tags
unbundle apply one or more changegroup files
update update working directory (or switch revisions)
verify verify the integrity of the repository
version output version and copyright information
additional help topics:
config Configuration Files
dates Date Formats
diffs Diff Formats
environment Environment Variables
extensions Using Additional Features
filesets Specifying File Sets
glossary Glossary
hgignore Syntax for Mercurial Ignore Files
hgweb Configuring hgweb
internals Technical implementation topics
merge-tools Merge Tools
multirevs Specifying Multiple Revisions
patterns File Name Patterns
phases Working with Phases
revisions Specifying Single Revisions
revsets Specifying Revision Sets
scripting Using Mercurial from scripts and automation
subrepos Subrepositories
templating Template Usage
urls URL Paths
(use 'hg help -v' to show built-in aliases and global options)
$ hg --help
Mercurial Distributed SCM
list of commands:
add add the specified files on the next commit
addremove add all new files, delete all missing files
annotate show changeset information by line for each file
archive create an unversioned archive of a repository revision
backout reverse effect of earlier changeset
bisect subdivision search of changesets
bookmarks create a new bookmark or list existing bookmarks
branch set or show the current branch name
branches list repository named branches
bundle create a changegroup file
cat output the current or given revision of files
clone make a copy of an existing repository
commit commit the specified files or all outstanding changes
config show combined config settings from all hgrc files
copy mark files as copied for the next commit
diff diff repository (or selected files)
export dump the header and diffs for one or more changesets
files list tracked files
forget forget the specified files on the next commit
graft copy changes from other branches onto the current branch
grep search revision history for a pattern in specified files
heads show branch heads
help show help for a given topic or a help overview
identify identify the working directory or specified revision
import import an ordered set of patches
incoming show new changesets found in source
init create a new repository in the given directory
log show revision history of entire repository or files
manifest output the current or given revision of the project manifest
merge merge another revision into working directory
outgoing show changesets not found in the destination
paths show aliases for remote repositories
phase set or show the current phase name
pull pull changes from the specified source
push push changes to the specified destination
recover roll back an interrupted transaction
remove remove the specified files on the next commit
rename rename files; equivalent of copy + remove
resolve redo merges or set/view the merge status of files
revert restore files to their checkout state
root print the root (top) of the current working directory
serve start stand-alone webserver
status show changed files in the working directory
summary summarize working directory state
tag add one or more tags for the current or given revision
tags list repository tags
unbundle apply one or more changegroup files
update update working directory (or switch revisions)
verify verify the integrity of the repository
version output version and copyright information
additional help topics:
config Configuration Files
dates Date Formats
diffs Diff Formats
environment Environment Variables
extensions Using Additional Features
filesets Specifying File Sets
glossary Glossary
hgignore Syntax for Mercurial Ignore Files
hgweb Configuring hgweb
internals Technical implementation topics
merge-tools Merge Tools
multirevs Specifying Multiple Revisions
patterns File Name Patterns
phases Working with Phases
revisions Specifying Single Revisions
revsets Specifying Revision Sets
scripting Using Mercurial from scripts and automation
subrepos Subrepositories
templating Template Usage
urls URL Paths
(use 'hg help -v' to show built-in aliases and global options)
Not tested: --debugger