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view tests/test-fetch.t @ 42743:8c9a6adec67a
rust-discovery: using the children cache in add_missing
The DAG range computation often needs to get back to very old
revisions, and turns out to be disproportionately long, given
that the end goal is to remove the descendents of the given
missing revisons from the undecided set.
The fast iteration capabilities available in the Rust case make
it possible to avoid the DAG range entirely, at the cost of
precomputing the children cache, and to simply iterate on
children of the given missing revisions.
This is a case where staying on the same side of the interface
between the two languages has clear benefits.
On discoveries with initial undecided sets
small enough to bypass sampling entirely, the total cost of
computing the children cache and the subsequent iteration
becomes better than the Python + C counterpart, which relies on
reachableroots2.
For example, on a repo with more than one million revisions with
an initial undecided set of 11 elements, we get these figures:
Rust version with simple iteration
addcommons: 57.287us
first undecided computation: 184.278334ms
first children cache computation: 131.056us
addmissings iteration: 42.766us
first addinfo total: 185.24 ms
Python + C version
first addcommons: 0.29 ms
addcommons 0.21 ms
first undecided computation 191.35 ms
addmissings 45.75 ms
first addinfo total: 237.77 ms
On discoveries with large undecided sets, the initial price paid
makes the first addinfo slower than the Python + C version,
but that's more than compensated by the gain in sampling and
subsequent iterations.
Here's an extreme example with an undecided set of a million revisions:
Rust version:
first undecided computation: 293.842629ms
first children cache computation: 407.911297ms
addmissings iteration: 34.312869ms
first addinfo total: 776.02 ms
taking initial sample
query 2: sampling time: 1318.38 ms
query 2; still undecided: 1005013, sample size is: 200
addmissings: 143.062us
Python + C version:
first undecided computation 298.13 ms
addmissings 80.13 ms
first addinfo total: 399.62 ms
taking initial sample
query 2: sampling time: 3957.23 ms
query 2; still undecided: 1005013, sample size is: 200
addmissings 52.88 ms
Differential Revision: https://phab.mercurial-scm.org/D6428
author | Georges Racinet <georges.racinet@octobus.net> |
---|---|
date | Tue, 16 Apr 2019 01:16:39 +0200 |
parents | eb586ed5d8ce |
children | 5c2a4f37eace |
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#require serve $ echo "[extensions]" >> $HGRCPATH $ echo "fetch=" >> $HGRCPATH test fetch with default branches only $ hg init a $ echo a > a/a $ hg --cwd a commit -Ama adding a $ hg clone a b updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg clone a c updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ echo b > a/b $ hg --cwd a commit -Amb adding b $ hg --cwd a parents -q 1:d2ae7f538514 should pull one change $ hg --cwd b fetch ../a pulling from ../a searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files new changesets d2ae7f538514 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg --cwd b parents -q 1:d2ae7f538514 $ echo c > c/c $ hg --cwd c commit -Amc adding c $ hg clone c d updating to branch default 2 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg clone c e updating to branch default 2 files updated, 0 files merged, 0 files removed, 0 files unresolved We cannot use the default commit message if fetching from a local repo, because the path of the repo will be included in the commit message, making every commit appear different. should merge c into a $ hg --cwd c fetch -d '0 0' -m 'automated merge' ../a pulling from ../a searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files (+1 heads) new changesets d2ae7f538514 updating to 2:d2ae7f538514 1 files updated, 0 files merged, 1 files removed, 0 files unresolved merging with 1:d36c0562f908 1 files updated, 0 files merged, 0 files removed, 0 files unresolved new changeset 3:a323a0c43ec4 merges remote changes with local $ ls c a b c $ hg serve --cwd a -a localhost -p $HGPORT -d --pid-file=hg.pid $ cat a/hg.pid >> "$DAEMON_PIDS" fetch over http, no auth (this also tests that editor is invoked if '--edit' is specified) $ HGEDITOR=cat hg --cwd d fetch --edit http://localhost:$HGPORT/ pulling from http://localhost:$HGPORT/ searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files (+1 heads) new changesets d2ae7f538514 updating to 2:d2ae7f538514 1 files updated, 0 files merged, 1 files removed, 0 files unresolved merging with 1:d36c0562f908 1 files updated, 0 files merged, 0 files removed, 0 files unresolved Automated merge with http://localhost:$HGPORT/ HG: Enter commit message. Lines beginning with 'HG:' are removed. HG: Leave message empty to abort commit. HG: -- HG: user: test HG: branch merge HG: branch 'default' HG: changed c new changeset 3:* merges remote changes with local (glob) $ hg --cwd d tip --template '{desc}\n' Automated merge with http://localhost:$HGPORT/ $ hg --cwd d status --rev 'tip^1' --rev tip A c $ hg --cwd d status --rev 'tip^2' --rev tip A b fetch over http with auth (should be hidden in desc) (this also tests that editor is not invoked if '--edit' is not specified, even though commit message is not specified explicitly) $ HGEDITOR=cat hg --cwd e fetch http://user:password@localhost:$HGPORT/ pulling from http://user:***@localhost:$HGPORT/ searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files (+1 heads) new changesets d2ae7f538514 updating to 2:d2ae7f538514 1 files updated, 0 files merged, 1 files removed, 0 files unresolved merging with 1:d36c0562f908 1 files updated, 0 files merged, 0 files removed, 0 files unresolved new changeset 3:* merges remote changes with local (glob) $ hg --cwd e tip --template '{desc}\n' Automated merge with http://localhost:$HGPORT/ $ hg clone a f updating to branch default 2 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg clone a g updating to branch default 2 files updated, 0 files merged, 0 files removed, 0 files unresolved $ echo f > f/f $ hg --cwd f ci -Amf adding f $ echo g > g/g $ hg --cwd g ci -Amg adding g $ hg clone -q f h $ hg clone -q g i should merge f into g $ hg --cwd g fetch -d '0 0' --switch -m 'automated merge' ../f pulling from ../f searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files (+1 heads) new changesets 6343ca3eff20 0 files updated, 0 files merged, 0 files removed, 0 files unresolved merging with 3:6343ca3eff20 1 files updated, 0 files merged, 0 files removed, 0 files unresolved new changeset 4:f7faa0b7d3c6 merges remote changes with local $ rm i/g should abort, because i is modified $ hg --cwd i fetch ../h abort: uncommitted changes [255] test fetch with named branches $ hg init nbase $ echo base > nbase/a $ hg -R nbase ci -Am base adding a $ hg -R nbase branch a marked working directory as branch a (branches are permanent and global, did you want a bookmark?) $ echo a > nbase/a $ hg -R nbase ci -m a $ hg -R nbase up -C 0 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg -R nbase branch b marked working directory as branch b $ echo b > nbase/b $ hg -R nbase ci -Am b adding b pull in change on foreign branch $ hg clone nbase n1 updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg clone nbase n2 updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg -R n1 up -C a 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ echo aa > n1/a $ hg -R n1 ci -m a1 $ hg -R n2 up -C b 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg -R n2 fetch -m 'merge' n1 pulling from n1 searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files new changesets 8fdc9284bbc5 parent should be 2 (no automatic update) $ hg -R n2 parents --template '{rev}\n' 2 $ rm -fr n1 n2 pull in changes on both foreign and local branches $ hg clone nbase n1 updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg clone nbase n2 updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg -R n1 up -C a 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ echo aa > n1/a $ hg -R n1 ci -m a1 $ hg -R n1 up -C b 2 files updated, 0 files merged, 0 files removed, 0 files unresolved $ echo bb > n1/b $ hg -R n1 ci -m b1 $ hg -R n2 up -C b 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg -R n2 fetch -m 'merge' n1 pulling from n1 searching for changes adding changesets adding manifests adding file changes added 2 changesets with 2 changes to 2 files new changesets 8fdc9284bbc5:3c4a837a864f 1 files updated, 0 files merged, 0 files removed, 0 files unresolved parent should be 4 (fast forward) $ hg -R n2 parents --template '{rev}\n' 4 $ rm -fr n1 n2 pull changes on foreign (2 new heads) and local (1 new head) branches with a local change $ hg clone nbase n1 updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg clone nbase n2 updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg -R n1 up -C a 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ echo a1 > n1/a $ hg -R n1 ci -m a1 $ hg -R n1 up -C b 2 files updated, 0 files merged, 0 files removed, 0 files unresolved $ echo bb > n1/b $ hg -R n1 ci -m b1 $ hg -R n1 up -C 1 1 files updated, 0 files merged, 1 files removed, 0 files unresolved $ echo a2 > n1/a $ hg -R n1 ci -m a2 created new head $ hg -R n2 up -C b 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ echo change >> n2/c $ hg -R n2 ci -A -m local adding c $ hg -R n2 fetch -d '0 0' -m 'merge' n1 pulling from n1 searching for changes adding changesets adding manifests adding file changes added 3 changesets with 3 changes to 2 files (+2 heads) new changesets d05ce59ff88d:a7954de24e4c updating to 5:3c4a837a864f 1 files updated, 0 files merged, 1 files removed, 0 files unresolved merging with 3:1267f84a9ea5 1 files updated, 0 files merged, 0 files removed, 0 files unresolved new changeset 7:2cf2a1261f21 merges remote changes with local parent should be 7 (new merge changeset) $ hg -R n2 parents --template '{rev}\n' 7 $ rm -fr n1 n2 pull in changes on foreign (merge of local branch) and local (2 new heads) with a local change $ hg clone nbase n1 updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg clone nbase n2 updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg -R n1 up -C a 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg -R n1 merge b 1 files updated, 0 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) $ hg -R n1 ci -m merge $ hg -R n1 up -C 2 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ echo c > n1/a $ hg -R n1 ci -m c $ hg -R n1 up -C 2 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ echo cc > n1/a $ hg -R n1 ci -m cc created new head $ hg -R n2 up -C b 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ echo change >> n2/b $ hg -R n2 ci -A -m local $ hg -R n2 fetch -m 'merge' n1 pulling from n1 searching for changes adding changesets adding manifests adding file changes added 3 changesets with 2 changes to 1 files (+2 heads) new changesets b84e8d0f020f:3d3bf54f99c0 not merging with 1 other new branch heads (use "hg heads ." and "hg merge" to merge them) [1] parent should be 3 (fetch did not merge anything) $ hg -R n2 parents --template '{rev}\n' 3 $ rm -fr n1 n2 pull in change on different branch than dirstate $ hg init n1 $ echo a > n1/a $ hg -R n1 ci -Am initial adding a $ hg clone n1 n2 updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ echo b > n1/a $ hg -R n1 ci -m next $ hg -R n2 branch topic marked working directory as branch topic (branches are permanent and global, did you want a bookmark?) $ hg -R n2 fetch -m merge n1 abort: working directory not at branch tip (use 'hg update' to check out branch tip) [255] parent should be 0 (fetch did not update or merge anything) $ hg -R n2 parents --template '{rev}\n' 0 $ rm -fr n1 n2 test fetch with inactive branches $ hg init ib1 $ echo a > ib1/a $ hg --cwd ib1 ci -Am base adding a $ hg --cwd ib1 branch second marked working directory as branch second (branches are permanent and global, did you want a bookmark?) $ echo b > ib1/b $ hg --cwd ib1 ci -Am onsecond adding b $ hg --cwd ib1 branch -f default marked working directory as branch default $ echo c > ib1/c $ hg --cwd ib1 ci -Am newdefault adding c created new head $ hg clone ib1 ib2 updating to branch default 3 files updated, 0 files merged, 0 files removed, 0 files unresolved fetch should succeed $ hg --cwd ib2 fetch ../ib1 pulling from ../ib1 searching for changes no changes found $ rm -fr ib1 ib2 test issue1726 $ hg init i1726r1 $ echo a > i1726r1/a $ hg --cwd i1726r1 ci -Am base adding a $ hg clone i1726r1 i1726r2 updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ echo b > i1726r1/a $ hg --cwd i1726r1 ci -m second $ echo c > i1726r2/a $ hg --cwd i1726r2 ci -m third $ HGMERGE=true hg --cwd i1726r2 fetch ../i1726r1 pulling from ../i1726r1 searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files (+1 heads) new changesets 7837755a2789 updating to 2:7837755a2789 1 files updated, 0 files merged, 0 files removed, 0 files unresolved merging with 1:d1f0c6c48ebd merging a 0 files updated, 1 files merged, 0 files removed, 0 files unresolved new changeset 3:* merges remote changes with local (glob) $ hg --cwd i1726r2 heads default --template '{rev}\n' 3 test issue2047 $ hg -q init i2047a $ cd i2047a $ echo a > a $ hg -q ci -Am a $ hg -q branch stable $ echo b > b $ hg -q ci -Am b $ cd .. $ hg -q clone -r 0 i2047a i2047b $ cd i2047b $ hg fetch ../i2047a pulling from ../i2047a searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files new changesets c8735224de5c $ cd ..