Mercurial > hg
view tests/test-incoming-outgoing.t @ 49777:e1953a34c110
bundle: emit full snapshot as is, without doing a redelta
With the new `forced` delta-reused policy, it become important to be able to
send full snapshot where full snapshot are needed. Otherwise, the fallback delta
will simply be used on the client sideā¦ creating monstrous delta chain, since
revision that are meant as a reset of delta-chain chain becoming too complex are
simply adding a new full delta-tree on the leaf of another one.
In the `non-forced` cases, client process full snapshot from the bundle
differently from deltas, so client will still try to convert the full snapshot
into a delta if possible. So this will no lead to pathological storage
explosion.
I have considered making this configurable, but the impact seems limited enough
that it does not seems to be worth it. Especially with the current
sparse-revlog format that use "delta-tree" with multiple level snapshots, full
snapshot are much less frequent and not that different from other intermediate
snapshot that we are already sending over the wire anyway.
CPU wise, this will help the bundling side a little as it will not need to
reconstruct revisions and compute deltas. The unbundling side might save a tiny
amount of CPU as it won't need to reconstruct the delta-base to reconstruct the
revision full text. This only slightly visible in some of the benchmarks. And
have no real impact on most of them.
### data-env-vars.name = pypy-2018-08-01-zstd-sparse-revlog
# benchmark.name = perf-bundle
# benchmark.variants.revs = last-40000
before: 11.467186 seconds
just-emit-full: 11.190576 seconds (-2.41%)
with-pull-force: 11.041091 seconds (-3.72%)
# benchmark.name = perf-unbundle
# benchmark.variants.revs = last-40000
before: 16.744862
just-emit-full:: 16.561036 seconds (-1.10%)
with-pull-force: 16.389344 seconds (-2.12%)
# benchmark.name = pull
# benchmark.variants.revs = last-40000
before: 26.870569
just-emit-full: 26.391188 seconds (-1.78%)
with-pull-force: 25.633184 seconds (-4.60%)
Space wise (so network-wise) the impact is fairly small. When taking compression into
account.
Below are tests the size of `hg bundle --all` for a handful of benchmark repositories
(with bzip, zstd compression and without it)
This show a small increase in the bundle size, but nothing really significant
except maybe for mozilla-try (+12%) that nobody really pulls large chunk of anyway.
Mozilla-try is also the repository that benefit the most for not having to
recompute deltas client size.
### mercurial:
bzip-before: 26 406 342 bytes
bzip-after: 26 691 543 bytes +1.08%
zstd-before: 27 918 645 bytes
zstd-after: 28 075 896 bytes +0.56%
none-before: 98 675 601 bytes
none-after: 100 411 237 bytes +1.76%
### pypy
bzip-before: 201 295 752 bytes
bzip-after: 209 780 282 bytes +4.21%
zstd-before: 202 974 795 bytes
zstd-after: 205 165 780 bytes +1.08%
none-before: 871 070 261 bytes
none-after: 993 595 057 bytes +14.07%
### netbeans
bzip-before: 601 314 330 bytes
bzip-after: 614 246 241 bytes +2.15%
zstd-before: 604 745 136 bytes
zstd-after: 615 497 705 bytes +1.78%
none-before: 3 338 238 571 bytes
none-after: 3 439 422 535 bytes +3.03%
### mozilla-central
bzip-before: 1 493 006 921 bytes
bzip-after: 1 549 650 570 bytes +3.79%
zstd-before: 1 481 910 102 bytes
zstd-after: 1 513 052 415 bytes +2.10%
none-before: 6 535 929 910 bytes
none-after: 7 010 191 342 bytes +7.26%
### mozilla-try
bzip-before: 6 583 425 999 bytes
bzip-after: 7 423 536 928 bytes +12.76%
zstd-before: 6 021 009 212 bytes
zstd-after: 6 674 922 420 bytes +10.86%
none-before: 22 954 739 558 bytes
none-after: 26 013 854 771 bytes +13.32%
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Wed, 07 Dec 2022 20:12:23 +0100 |
parents | f1186c292d03 |
children | 2f2682f40ea0 |
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#require serve $ hg init test $ cd test $ for i in 0 1 2 3 4 5 6 7 8; do > echo $i >> foo > hg commit -A -m $i > done adding foo $ hg verify checking changesets checking manifests crosschecking files in changesets and manifests checking files checked 9 changesets with 9 changes to 1 files $ hg serve -p $HGPORT -d --pid-file=hg.pid $ cat hg.pid >> $DAEMON_PIDS $ cd .. $ hg init new http incoming $ hg -R new incoming http://localhost:$HGPORT/ comparing with http://localhost:$HGPORT/ changeset: 0:00a43fa82f62 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 0 changeset: 1:5460a410df01 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 1 changeset: 2:d9f42cd1a1ec user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 2 changeset: 3:376476025137 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 3 changeset: 4:70d7eb252d49 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 4 changeset: 5:ad284ee3b5ee user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 5 changeset: 6:e9229f2de384 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 6 changeset: 7:d152815bb8db user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 7 changeset: 8:e4feb4ac9035 tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 8 $ hg -R new incoming -r 4 http://localhost:$HGPORT/ comparing with http://localhost:$HGPORT/ changeset: 0:00a43fa82f62 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 0 changeset: 1:5460a410df01 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 1 changeset: 2:d9f42cd1a1ec user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 2 changeset: 3:376476025137 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 3 changeset: 4:70d7eb252d49 tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 4 local incoming $ hg -R new incoming test comparing with test changeset: 0:00a43fa82f62 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 0 changeset: 1:5460a410df01 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 1 changeset: 2:d9f42cd1a1ec user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 2 changeset: 3:376476025137 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 3 changeset: 4:70d7eb252d49 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 4 changeset: 5:ad284ee3b5ee user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 5 changeset: 6:e9229f2de384 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 6 changeset: 7:d152815bb8db user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 7 changeset: 8:e4feb4ac9035 tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 8 $ hg -R new incoming -r 4 test comparing with test changeset: 0:00a43fa82f62 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 0 changeset: 1:5460a410df01 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 1 changeset: 2:d9f42cd1a1ec user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 2 changeset: 3:376476025137 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 3 changeset: 4:70d7eb252d49 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 4 limit to 2 changesets $ hg -R new incoming -l 2 test comparing with test changeset: 0:00a43fa82f62 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 0 changeset: 1:5460a410df01 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 1 limit to 2 changesets, test with -p --git $ hg -R new incoming -l 2 -p --git test comparing with test changeset: 0:00a43fa82f62 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 0 diff --git a/foo b/foo new file mode 100644 --- /dev/null +++ b/foo @@ -0,0 +1,1 @@ +0 changeset: 1:5460a410df01 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 1 diff --git a/foo b/foo --- a/foo +++ b/foo @@ -1,1 +1,2 @@ 0 +1 test with --bundle $ hg -R new incoming --bundle test.hg http://localhost:$HGPORT/ comparing with http://localhost:$HGPORT/ changeset: 0:00a43fa82f62 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 0 changeset: 1:5460a410df01 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 1 changeset: 2:d9f42cd1a1ec user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 2 changeset: 3:376476025137 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 3 changeset: 4:70d7eb252d49 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 4 changeset: 5:ad284ee3b5ee user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 5 changeset: 6:e9229f2de384 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 6 changeset: 7:d152815bb8db user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 7 changeset: 8:e4feb4ac9035 tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 8 $ hg -R new incoming --bundle test2.hg test comparing with test changeset: 0:00a43fa82f62 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 0 changeset: 1:5460a410df01 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 1 changeset: 2:d9f42cd1a1ec user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 2 changeset: 3:376476025137 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 3 changeset: 4:70d7eb252d49 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 4 changeset: 5:ad284ee3b5ee user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 5 changeset: 6:e9229f2de384 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 6 changeset: 7:d152815bb8db user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 7 changeset: 8:e4feb4ac9035 tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 8 test the resulting bundles $ hg init temp $ hg init temp2 $ hg -R temp unbundle test.hg adding changesets adding manifests adding file changes added 9 changesets with 9 changes to 1 files new changesets 00a43fa82f62:e4feb4ac9035 (9 drafts) (run 'hg update' to get a working copy) $ hg -R temp2 unbundle test2.hg adding changesets adding manifests adding file changes added 9 changesets with 9 changes to 1 files new changesets 00a43fa82f62:e4feb4ac9035 (9 drafts) (run 'hg update' to get a working copy) $ hg -R temp tip changeset: 8:e4feb4ac9035 tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 8 $ hg -R temp2 tip changeset: 8:e4feb4ac9035 tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 8 $ rm -r temp temp2 new test outgoing $ hg clone test test-dev updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd test-dev $ for i in 9 10 11 12 13; do > echo $i >> foo > hg commit -A -m $i > done $ hg verify checking changesets checking manifests crosschecking files in changesets and manifests checking files checked 14 changesets with 14 changes to 1 files $ cd .. $ hg -R test-dev outgoing test comparing with test searching for changes changeset: 9:d89d4abea5bc user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 9 changeset: 10:820095aa7158 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 10 changeset: 11:09ede2f3a638 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 11 changeset: 12:e576b1bed305 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 12 changeset: 13:96bbff09a7cc tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 13 test outgoing with secret changesets $ hg -R test-dev phase --force --secret 9 $ hg -R test-dev outgoing test comparing with test searching for changes no changes found (ignored 5 secret changesets) [1] $ hg -R test-dev phase --draft -r 'head()' limit to 3 changesets $ hg -R test-dev outgoing -l 3 test comparing with test searching for changes changeset: 9:d89d4abea5bc user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 9 changeset: 10:820095aa7158 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 10 changeset: 11:09ede2f3a638 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 11 $ hg -R test-dev outgoing http://localhost:$HGPORT/ comparing with http://localhost:$HGPORT/ searching for changes changeset: 9:d89d4abea5bc user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 9 changeset: 10:820095aa7158 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 10 changeset: 11:09ede2f3a638 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 11 changeset: 12:e576b1bed305 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 12 changeset: 13:96bbff09a7cc tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 13 $ hg -R test-dev outgoing -r 11 http://localhost:$HGPORT/ comparing with http://localhost:$HGPORT/ searching for changes changeset: 9:d89d4abea5bc user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 9 changeset: 10:820095aa7158 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 10 changeset: 11:09ede2f3a638 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: 11 incoming from empty remote repository $ hg init r1 $ hg init r2 $ echo a > r1/foo $ hg -R r1 ci -Ama adding foo $ hg -R r1 incoming r2 --bundle x.hg comparing with r2 searching for changes no changes found [1] Create a "split" repo that pulls from r1 and pushes to r2, using default-push $ hg clone r1 split updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cat > split/.hg/hgrc << EOF > [paths] > default = $TESTTMP/r3 > default-push = $TESTTMP/r2 > EOF $ hg -R split outgoing comparing with $TESTTMP/r2 searching for changes changeset: 0:3e92d79f743a tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: a Use default:pushurl instead of default-push Windows needs a leading slash to make a URL that passes all of the checks $ WD=`pwd` #if windows $ WD="/$WD" #endif $ cat > split/.hg/hgrc << EOF > [paths] > default = $WD/r3 > default:pushurl = file://$WD/r2 > EOF $ hg -R split outgoing comparing with file:/*/$TESTTMP/r2 (glob) searching for changes changeset: 0:3e92d79f743a tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: a Push and then double-check outgoing $ echo a >> split/foo $ hg -R split commit -Ama $ hg -R split push pushing to file:/*/$TESTTMP/r2 (glob) searching for changes adding changesets adding manifests adding file changes added 2 changesets with 2 changes to 1 files $ hg -R split outgoing comparing with file:/*/$TESTTMP/r2 (glob) searching for changes no changes found [1]