Mercurial > hg
view tests/test-clone-r.t @ 21990:48e32c2c499b stable
context: call normal on the right object
dirstate.normal is the method that marks files as unchanged/normal.
Rev 20a30cd41d21 started caching dirstate.normal in order to improve
performance. However, there was an error in the patch: taking the wlock, under
some conditions depending on platform, can cause a new dirstate object to be
created. Caching dirstate.normal before calling wlock would then cause the
fixup calls below to be on the old dirstate object, effectively disappearing
into the ether.
On Unix and Unix-like OSes, the condition under which we create a new dirstate
object is 'the dirstate file has been modified since the last time we opened
it'. This happens pretty rarely, so the object is usually the same -- there's
little impact.
On Windows, the condition is 'always'. This means files in the lookup state are
never marked normal, so the bug has a serious performance impact since all the
files in the lookup state are re-read every time hg status is run.
author | Siddharth Agarwal <sid0@fb.com> |
---|---|
date | Fri, 01 Aug 2014 18:30:18 -0700 |
parents | b87acfda5268 |
children | 30be3aeb5344 |
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$ hg init test $ cd test $ echo 0 >> afile $ hg add afile $ hg commit -m "0.0" $ echo 1 >> afile $ hg commit -m "0.1" $ echo 2 >> afile $ hg commit -m "0.2" $ echo 3 >> afile $ hg commit -m "0.3" $ hg update -C 0 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ echo 1 >> afile $ hg commit -m "1.1" created new head $ echo 2 >> afile $ hg commit -m "1.2" $ echo a line > fred $ echo 3 >> afile $ hg add fred $ hg commit -m "1.3" $ hg mv afile adifferentfile $ hg commit -m "1.3m" $ hg update -C 3 1 files updated, 0 files merged, 2 files removed, 0 files unresolved $ hg mv afile anotherfile $ hg commit -m "0.3m" $ hg debugindex -f 1 afile rev flag offset length size ..... link p1 p2 nodeid (re) 0 0000 0 3 2 ..... 0 -1 -1 362fef284ce2 (re) 1 0000 3 5 4 ..... 1 0 -1 125144f7e028 (re) 2 0000 8 7 6 ..... 2 1 -1 4c982badb186 (re) 3 0000 15 9 8 ..... 3 2 -1 19b1fc555737 (re) $ hg debugindex adifferentfile rev offset length ..... linkrev nodeid p1 p2 (re) 0 0 75 ..... 7 2565f3199a74 000000000000 000000000000 (re) $ hg debugindex anotherfile rev offset length ..... linkrev nodeid p1 p2 (re) 0 0 75 ..... 8 2565f3199a74 000000000000 000000000000 (re) $ hg debugindex fred rev offset length ..... linkrev nodeid p1 p2 (re) 0 0 8 ..... 6 12ab3bcc5ea4 000000000000 000000000000 (re) $ hg debugindex --manifest rev offset length ..... linkrev nodeid p1 p2 (re) 0 0 48 ..... 0 43eadb1d2d06 000000000000 000000000000 (re) 1 48 48 ..... 1 8b89697eba2c 43eadb1d2d06 000000000000 (re) 2 96 48 ..... 2 626a32663c2f 8b89697eba2c 000000000000 (re) 3 144 48 ..... 3 f54c32f13478 626a32663c2f 000000000000 (re) 4 192 .. ..... 6 de68e904d169 626a32663c2f 000000000000 (re) 5 2.. 68 ..... 7 09bb521d218d de68e904d169 000000000000 (re) 6 3.. 54 ..... 8 1fde233dfb0f f54c32f13478 000000000000 (re) $ hg verify checking changesets checking manifests crosschecking files in changesets and manifests checking files 4 files, 9 changesets, 7 total revisions $ cd .. $ for i in 0 1 2 3 4 5 6 7 8; do > echo > echo ---- hg clone -r "$i" test test-"$i" > hg clone -r "$i" test test-"$i" > cd test-"$i" > hg verify > cd .. > done ---- hg clone -r 0 test test-0 adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved checking changesets checking manifests crosschecking files in changesets and manifests checking files 1 files, 1 changesets, 1 total revisions ---- hg clone -r 1 test test-1 adding changesets adding manifests adding file changes added 2 changesets with 2 changes to 1 files updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved checking changesets checking manifests crosschecking files in changesets and manifests checking files 1 files, 2 changesets, 2 total revisions ---- hg clone -r 2 test test-2 adding changesets adding manifests adding file changes added 3 changesets with 3 changes to 1 files updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved checking changesets checking manifests crosschecking files in changesets and manifests checking files 1 files, 3 changesets, 3 total revisions ---- hg clone -r 3 test test-3 adding changesets adding manifests adding file changes added 4 changesets with 4 changes to 1 files updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved checking changesets checking manifests crosschecking files in changesets and manifests checking files 1 files, 4 changesets, 4 total revisions ---- hg clone -r 4 test test-4 adding changesets adding manifests adding file changes added 2 changesets with 2 changes to 1 files updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved checking changesets checking manifests crosschecking files in changesets and manifests checking files 1 files, 2 changesets, 2 total revisions ---- hg clone -r 5 test test-5 adding changesets adding manifests adding file changes added 3 changesets with 3 changes to 1 files updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved checking changesets checking manifests crosschecking files in changesets and manifests checking files 1 files, 3 changesets, 3 total revisions ---- hg clone -r 6 test test-6 adding changesets adding manifests adding file changes added 4 changesets with 5 changes to 2 files updating to branch default 2 files updated, 0 files merged, 0 files removed, 0 files unresolved checking changesets checking manifests crosschecking files in changesets and manifests checking files 2 files, 4 changesets, 5 total revisions ---- hg clone -r 7 test test-7 adding changesets adding manifests adding file changes added 5 changesets with 6 changes to 3 files updating to branch default 2 files updated, 0 files merged, 0 files removed, 0 files unresolved checking changesets checking manifests crosschecking files in changesets and manifests checking files 3 files, 5 changesets, 6 total revisions ---- hg clone -r 8 test test-8 adding changesets adding manifests adding file changes added 5 changesets with 5 changes to 2 files updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved checking changesets checking manifests crosschecking files in changesets and manifests checking files 2 files, 5 changesets, 5 total revisions $ cd test-8 $ hg pull ../test-7 pulling from ../test-7 searching for changes adding changesets adding manifests adding file changes added 4 changesets with 2 changes to 3 files (+1 heads) (run 'hg heads' to see heads, 'hg merge' to merge) $ hg verify checking changesets checking manifests crosschecking files in changesets and manifests checking files 4 files, 9 changesets, 7 total revisions $ cd ..