Mercurial > hg
view tests/test-mq-qrefresh-interactive.t @ 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 | f802a75da585 |
children | 8d72e29ad1e0 |
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Create configuration $ echo "[ui]" >> $HGRCPATH $ echo "interactive=true" >> $HGRCPATH help qrefresh (no record) $ echo "[extensions]" >> $HGRCPATH $ echo "mq=" >> $HGRCPATH $ hg help qrefresh hg qrefresh [-I] [-X] [-e] [-m TEXT] [-l FILE] [-s] [FILE]... update the current patch If any file patterns are provided, the refreshed patch will contain only the modifications that match those patterns; the remaining modifications will remain in the working directory. If -s/--short is specified, files currently included in the patch will be refreshed just like matched files and remain in the patch. If -e/--edit is specified, Mercurial will start your configured editor for you to enter a message. In case qrefresh fails, you will find a backup of your message in ".hg/last-message.txt". hg add/remove/copy/rename work as usual, though you might want to use git- style patches (-g/--git or [diff] git=1) to track copies and renames. See the diffs help topic for more information on the git diff format. Returns 0 on success. options ([+] can be repeated): -e --edit invoke editor on commit messages -g --git use git extended diff format -s --short refresh only files already in the patch and specified files -U --currentuser add/update author field in patch with current user -u --user USER add/update author field in patch with given user -D --currentdate add/update date field in patch with current date -d --date DATE add/update date field in patch with given date -I --include PATTERN [+] include names matching the given patterns -X --exclude PATTERN [+] exclude names matching the given patterns -m --message TEXT use text as commit message -l --logfile FILE read commit message from file (some details hidden, use --verbose to show complete help) help qrefresh (record) $ echo "record=" >> $HGRCPATH $ hg help qrefresh hg qrefresh [-I] [-X] [-e] [-m TEXT] [-l FILE] [-s] [FILE]... update the current patch If any file patterns are provided, the refreshed patch will contain only the modifications that match those patterns; the remaining modifications will remain in the working directory. If -s/--short is specified, files currently included in the patch will be refreshed just like matched files and remain in the patch. If -e/--edit is specified, Mercurial will start your configured editor for you to enter a message. In case qrefresh fails, you will find a backup of your message in ".hg/last-message.txt". hg add/remove/copy/rename work as usual, though you might want to use git- style patches (-g/--git or [diff] git=1) to track copies and renames. See the diffs help topic for more information on the git diff format. Returns 0 on success. options ([+] can be repeated): -e --edit invoke editor on commit messages -g --git use git extended diff format -s --short refresh only files already in the patch and specified files -U --currentuser add/update author field in patch with current user -u --user USER add/update author field in patch with given user -D --currentdate add/update date field in patch with current date -d --date DATE add/update date field in patch with given date -I --include PATTERN [+] include names matching the given patterns -X --exclude PATTERN [+] exclude names matching the given patterns -m --message TEXT use text as commit message -l --logfile FILE read commit message from file -i --interactive interactively select changes to refresh (some details hidden, use --verbose to show complete help) $ hg init a $ cd a Base commit $ cat > 1.txt <<EOF > 1 > 2 > 3 > 4 > 5 > EOF $ cat > 2.txt <<EOF > a > b > c > d > e > f > EOF $ mkdir dir $ cat > dir/a.txt <<EOF > hello world > > someone > up > there > loves > me > EOF $ hg add 1.txt 2.txt dir/a.txt $ hg commit -m aaa $ hg qrecord --config ui.interactive=false patch abort: running non-interactively, use qnew instead [255] $ hg qnew -i --config ui.interactive=false patch abort: running non-interactively [255] $ hg qnew -d '0 0' patch Changing files $ sed -e 's/2/2 2/;s/4/4 4/' 1.txt > 1.txt.new $ sed -e 's/b/b b/' 2.txt > 2.txt.new $ sed -e 's/hello world/hello world!/' dir/a.txt > dir/a.txt.new $ mv -f 1.txt.new 1.txt $ mv -f 2.txt.new 2.txt $ mv -f dir/a.txt.new dir/a.txt Whole diff $ hg diff --nodates diff -r ed27675cb5df 1.txt --- a/1.txt +++ b/1.txt @@ -1,5 +1,5 @@ 1 -2 +2 2 3 -4 +4 4 5 diff -r ed27675cb5df 2.txt --- a/2.txt +++ b/2.txt @@ -1,5 +1,5 @@ a -b +b b c d e diff -r ed27675cb5df dir/a.txt --- a/dir/a.txt +++ b/dir/a.txt @@ -1,4 +1,4 @@ -hello world +hello world! someone up partial qrefresh $ hg qrefresh -i --config ui.interactive=false abort: running non-interactively [255] $ hg qrefresh -i -d '0 0' <<EOF > y > y > n > y > y > n > EOF diff --git a/1.txt b/1.txt 2 hunks, 2 lines changed examine changes to '1.txt'? (enter ? for help) [Ynesfdaq?] y @@ -1,3 +1,3 @@ 1 -2 +2 2 3 record change 1/4 to '1.txt'? (enter ? for help) [Ynesfdaq?] y @@ -3,3 +3,3 @@ 3 -4 +4 4 5 record change 2/4 to '1.txt'? (enter ? for help) [Ynesfdaq?] n diff --git a/2.txt b/2.txt 1 hunks, 1 lines changed examine changes to '2.txt'? (enter ? for help) [Ynesfdaq?] y @@ -1,5 +1,5 @@ a -b +b b c d e record change 3/4 to '2.txt'? (enter ? for help) [Ynesfdaq?] y diff --git a/dir/a.txt b/dir/a.txt 1 hunks, 1 lines changed examine changes to 'dir/a.txt'? (enter ? for help) [Ynesfdaq?] n After partial qrefresh 'tip' $ hg tip -p changeset: 1:0738af1a8211 tag: patch tag: qbase tag: qtip tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: [mq]: patch diff -r 1fd39ab63a33 -r 0738af1a8211 1.txt --- a/1.txt Thu Jan 01 00:00:00 1970 +0000 +++ b/1.txt Thu Jan 01 00:00:00 1970 +0000 @@ -1,5 +1,5 @@ 1 -2 +2 2 3 4 5 diff -r 1fd39ab63a33 -r 0738af1a8211 2.txt --- a/2.txt Thu Jan 01 00:00:00 1970 +0000 +++ b/2.txt Thu Jan 01 00:00:00 1970 +0000 @@ -1,5 +1,5 @@ a -b +b b c d e After partial qrefresh 'diff' $ hg diff --nodates diff -r 0738af1a8211 1.txt --- a/1.txt +++ b/1.txt @@ -1,5 +1,5 @@ 1 2 2 3 -4 +4 4 5 diff -r 0738af1a8211 dir/a.txt --- a/dir/a.txt +++ b/dir/a.txt @@ -1,4 +1,4 @@ -hello world +hello world! someone up qrefresh interactively everything else $ hg qrefresh -i -d '0 0' <<EOF > y > y > y > y > EOF diff --git a/1.txt b/1.txt 1 hunks, 1 lines changed examine changes to '1.txt'? (enter ? for help) [Ynesfdaq?] y @@ -1,5 +1,5 @@ 1 2 2 3 -4 +4 4 5 record change 1/2 to '1.txt'? (enter ? for help) [Ynesfdaq?] y diff --git a/dir/a.txt b/dir/a.txt 1 hunks, 1 lines changed examine changes to 'dir/a.txt'? (enter ? for help) [Ynesfdaq?] y @@ -1,4 +1,4 @@ -hello world +hello world! someone up record change 2/2 to 'dir/a.txt'? (enter ? for help) [Ynesfdaq?] y After final qrefresh 'tip' $ hg tip -p changeset: 1:2c3f66afeed9 tag: patch tag: qbase tag: qtip tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: [mq]: patch diff -r 1fd39ab63a33 -r 2c3f66afeed9 1.txt --- a/1.txt Thu Jan 01 00:00:00 1970 +0000 +++ b/1.txt Thu Jan 01 00:00:00 1970 +0000 @@ -1,5 +1,5 @@ 1 -2 +2 2 3 -4 +4 4 5 diff -r 1fd39ab63a33 -r 2c3f66afeed9 2.txt --- a/2.txt Thu Jan 01 00:00:00 1970 +0000 +++ b/2.txt Thu Jan 01 00:00:00 1970 +0000 @@ -1,5 +1,5 @@ a -b +b b c d e diff -r 1fd39ab63a33 -r 2c3f66afeed9 dir/a.txt --- a/dir/a.txt Thu Jan 01 00:00:00 1970 +0000 +++ b/dir/a.txt Thu Jan 01 00:00:00 1970 +0000 @@ -1,4 +1,4 @@ -hello world +hello world! someone up After qrefresh 'diff' $ hg diff --nodates $ cd ..