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view tests/test-remotefilelog-push-pull.t @ 43198:c16fe77e340a
pathcopies: give up any optimization based on `introrev`
Between 8a0136f69027 and d98fb3f42f33, we sped up the search for the
introduction revision during path copies. However, further checking show that
finding the introduction revision is still expensive and that we are better off
without it. So we simply drop it and only rely on the linkrev optimisation.
I ran `perfpathcopies` on 6989 pair of revision in the pypy
repository (`hg perfhelper-pathcopies`. The result is massively in favor of
dropping this condition. The result of the copy tracing are unchanged.
Attempt to use a smaller changes preserving linkrev usage were unsuccessful, it
can return wrong result. The following changesets broke test-mv-cp-st-diff.t
- if not f.isintroducedafter(limit):
+ if limit >= 0 and f.linkrev() < limit:
return None
Here are various numbers (before this changeset/after this changesets)
source destination before after saved-time ratio
worth cases e66f24650daf 695dfb0f493b 1.062843 1.246369 -0.183526 1.172675
c979853a3b6a 8d60fe293e79 1.036985 1.196414 -0.159429 1.153743
22349fa2fc33 fbb1c9fd86c0 0.879926 1.038682 -0.158756 1.180420
682b98f3e672 a4878080a536 0.909952 1.063801 -0.153849 1.169074
5adabc9b9848 920958a93997 0.993622 1.147452 -0.153830 1.154817
worse 1% dbfbfcf077e9 aea8f2fd3593 1.016595 1.082999 -0.066404 1.065320
worse 5% c95f1ced15f2 7d29d5e39734 0.453694 0.471156 -0.017462 1.038488
worse 10% 3e144ed1d5b7 2aef0e942480 0.035140 0.037535 -0.002395 1.068156
worse 25% 321fc60db035 801748ba582a 0.009267 0.009325 -0.000058 1.006259
median 2088ce763fc2 e6991321d78b 0.000665 0.000651 0.000014 0.978947
best 25% 915631a97de6 385b31354be6 0.040743 0.040363 0.000380 0.990673
best 10% ad495c36a765 19c10384d3e7 0.431658 0.411490 0.020168 0.953278
best 5% d13ae7d283ae 813c99f810ac 1.141404 1.075346 0.066058 0.942126
best 1% 81593cb4a496 99ae11866969 1.833297 0.063823 1.769474 0.034813
best cases c3b14617fbd7 743a0fcaa4eb 1101.811740 2.735970 1099.075770 0.002483
c3b14617fbd7 9ba6ab77fd29 1116.753953 2.800729 1113.953224 0.002508
058b99d6e81f 57e249b7a3ea 1246.128485 3.042762 1243.085723 0.002442
9a8c361aab49 0354a250d371 1253.111894 3.085796 1250.026098 0.002463
442dbbc53c68 3ec1002a818c 1261.786294 3.138607 1258.647687 0.002487
As one can see, the average case is not really impacted. However, the worth case
we get after this changeset are much better than the one we had before it. We
have 30 pairs where improvements are above 10 minutes.
This reflect in the combined time for all pairs
before: 26256s
after: 1300s (-95%)
If we remove these pathological 30 cases, we still see a significant improvements:
before: 1631s
after: 1245s (-24%)
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Thu, 10 Oct 2019 03:49:33 +0200 |
parents | 0800d9e6e216 |
children |
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#require no-windows $ . "$TESTDIR/remotefilelog-library.sh" $ hg init master $ cd master $ cat >> .hg/hgrc <<EOF > [remotefilelog] > server=True > EOF $ echo x > x $ hg commit -qAm x $ cd .. $ hgcloneshallow ssh://user@dummy/master shallow -q 1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over *s (glob) $ hgcloneshallow ssh://user@dummy/master shallow2 -q We should see the remotefilelog capability here, which advertises that the server supports our custom getfiles method. $ cd master $ echo 'hello' | hg -R . serve --stdio | grep capa | identifyrflcaps exp-remotefilelog-ssh-getfiles-1 x_rfl_getfile x_rfl_getflogheads $ echo 'capabilities' | hg -R . serve --stdio | identifyrflcaps ; echo exp-remotefilelog-ssh-getfiles-1 x_rfl_getfile x_rfl_getflogheads # pull to shallow from full $ echo y > y $ hg commit -qAm y $ cd ../shallow $ hg pull pulling from ssh://user@dummy/master searching for changes adding changesets adding manifests adding file changes added 1 changesets with 0 changes to 0 files new changesets d34c38483be9 (run 'hg update' to get a working copy) $ hg up 1 files updated, 0 files merged, 0 files removed, 0 files unresolved 1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over *s (glob) $ cat y y $ cd .. # pull from shallow to shallow (local) $ cd shallow $ echo z > z $ hg commit -qAm z $ echo x >> x $ echo y >> y $ hg commit -qAm xxyy $ cd ../shallow2 $ clearcache $ hg pull ../shallow pulling from ../shallow searching for changes adding changesets adding manifests adding file changes added 3 changesets with 4 changes to 3 files new changesets d34c38483be9:d7373980d475 (2 drafts) (run 'hg update' to get a working copy) 2 files fetched over 2 fetches - (2 misses, 0.00% hit ratio) over *s (glob) # pull from shallow to shallow (ssh) $ hg strip -r 1 saved backup bundle to $TESTTMP/shallow2/.hg/strip-backup/d34c38483be9-89d325c9-backup.hg (glob) $ hg pull ssh://user@dummy/$TESTTMP/shallow --config remotefilelog.cachepath=${CACHEDIR}2 pulling from ssh://user@dummy/$TESTTMP/shallow searching for changes adding changesets adding manifests adding file changes added 3 changesets with 4 changes to 3 files new changesets d34c38483be9:d7373980d475 (2 drafts) (run 'hg update' to get a working copy) 1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over *s (glob) $ hg up 3 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cat z z $ hg -R ../shallow strip -qr 3 $ hg strip -qr 3 $ cd .. # push from shallow to shallow $ cd shallow $ echo a > a $ hg commit -qAm a $ hg push ssh://user@dummy/$TESTTMP/shallow2 pushing to ssh://user@dummy/$TESTTMP/shallow2 searching for changes remote: adding changesets remote: adding manifests remote: adding file changes remote: added 1 changesets with 1 changes to 1 files $ cd ../shallow2 $ hg up 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cat a a # verify files are read-only $ ls -l .hg/store/data total * (glob) drwxrwxr-x* 11f6ad8ec52a2984abaafd7c3b516503785c2072 (glob) drwxrwxr-x* 395df8f7c51f007019cb30201c49e884b46b92fa (glob) drwxrwxr-x* 86f7e437faa5a7fce15d1ddcb9eaeaea377667b8 (glob) drwxrwxr-x* 95cb0bfd2977c761298d9624e4b4d4c72a39974a (glob) $ ls -l .hg/store/data/395df8f7c51f007019cb30201c49e884b46b92fa total * (glob) -r--r--r--* 69a1b67522704ec122181c0890bd16e9d3e7516a (glob) -r--r--r--* 69a1b67522704ec122181c0890bd16e9d3e7516a_old (glob) $ cd .. # push from shallow to full $ cd shallow $ hg push pushing to ssh://user@dummy/master searching for changes remote: adding changesets remote: adding manifests remote: adding file changes remote: added 2 changesets with 2 changes to 2 files $ cd ../master $ hg log -l 1 --style compact 3[tip] 1489bbbc46f0 1970-01-01 00:00 +0000 test a $ hg up 2 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cat a a # push public commits $ cd ../shallow $ echo p > p $ hg commit -qAm p $ hg phase -f -p -r . $ echo d > d $ hg commit -qAm d $ cd ../shallow2 $ hg pull ../shallow pulling from ../shallow searching for changes adding changesets adding manifests adding file changes added 2 changesets with 2 changes to 2 files new changesets 3a2e32c04641:cedeb4167c1f (1 drafts) 2 local changesets published (?) (run 'hg update' to get a working copy) $ cd .. # Test pushing from shallow to shallow with multiple manifests introducing the # same filenode. Test this by constructing two separate histories of file 'c' # that share a file node and verifying that the history works after pushing. $ hg init multimf-master $ hgcloneshallow ssh://user@dummy/multimf-master multimf-shallow -q $ hgcloneshallow ssh://user@dummy/multimf-master multimf-shallow2 -q $ cd multimf-shallow $ echo a > a $ hg commit -qAm a $ echo b > b $ hg commit -qAm b $ echo c > c $ hg commit -qAm c1 $ hg up -q 0 $ echo c > c $ hg commit -qAm c2 $ echo cc > c $ hg commit -qAm c22 $ hg log -G -T '{rev} {desc}\n' @ 4 c22 | o 3 c2 | | o 2 c1 | | | o 1 b |/ o 0 a $ cd ../multimf-shallow2 - initial commit to prevent hg pull from being a clone $ echo z > z && hg commit -qAm z $ hg pull -f ssh://user@dummy/$TESTTMP/multimf-shallow pulling from ssh://user@dummy/$TESTTMP/multimf-shallow searching for changes warning: repository is unrelated requesting all changes adding changesets adding manifests adding file changes added 5 changesets with 4 changes to 3 files (+2 heads) new changesets cb9a9f314b8b:d8f06a4c6d38 (5 drafts) (run 'hg heads' to see heads, 'hg merge' to merge) $ hg up -q 5 $ hg log -f -T '{rev}\n' c 5 4