Mercurial > hg
view tests/test-rebase-detach.t @ 31467:08ecec297521
bdiff: use Python memory allocator in fixws
Python has its own memory allocation APIs. For allocations
<= 512 bytes, it allocates memory from arenas. This means that
average small allocations don't call the system allocator, which
makes them faster. Also, arena allocations cut down on memory
fragmentation, which can matter for performance in long-running
processes.
Another advantage of using the Python memory allocator is that
allocations are tracked by Python. This is a bigger deal in
Python 3, as modern versions of Python have some decent built-in
tools for examining memory usage, leaks, etc.
This patch converts a trivial malloc() + free() in the bdiff code
to use the Python allocator APIs. Since the object being
operated on is a line, chances are it will use an arena. So,
this could have a net positive impact on performance (although
I didn't measure it).
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Thu, 09 Mar 2017 11:54:25 -0800 |
parents | 157675d0f600 |
children | 3b7cb3d17137 |
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$ cat >> $HGRCPATH <<EOF > [extensions] > rebase= > > [phases] > publish=False > > [alias] > tglog = log -G --template "{rev}: '{desc}' {branches}\n" > EOF $ hg init a $ cd a $ hg unbundle "$TESTDIR/bundles/rebase.hg" adding changesets adding manifests adding file changes added 8 changesets with 7 changes to 7 files (+2 heads) (run 'hg heads' to see heads, 'hg merge' to merge) $ hg up tip 3 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd .. Rebasing D onto H detaching from C: $ hg clone -q -u . a a1 $ cd a1 $ hg tglog @ 7: 'H' | | o 6: 'G' |/| o | 5: 'F' | | | o 4: 'E' |/ | o 3: 'D' | | | o 2: 'C' | | | o 1: 'B' |/ o 0: 'A' $ hg phase --force --secret 3 $ hg rebase -s 3 -d 7 rebasing 3:32af7686d403 "D" saved backup bundle to $TESTTMP/a1/.hg/strip-backup/32af7686d403-6f7dface-backup.hg (glob) $ hg log -G --template "{rev}:{phase} '{desc}' {branches}\n" o 7:secret 'D' | @ 6:draft 'H' | | o 5:draft 'G' |/| o | 4:draft 'F' | | | o 3:draft 'E' |/ | o 2:draft 'C' | | | o 1:draft 'B' |/ o 0:draft 'A' $ hg manifest --rev tip A D F H $ cd .. Rebasing C onto H detaching from B: $ hg clone -q -u . a a2 $ cd a2 $ hg tglog @ 7: 'H' | | o 6: 'G' |/| o | 5: 'F' | | | o 4: 'E' |/ | o 3: 'D' | | | o 2: 'C' | | | o 1: 'B' |/ o 0: 'A' $ hg rebase -s 2 -d 7 rebasing 2:5fddd98957c8 "C" rebasing 3:32af7686d403 "D" saved backup bundle to $TESTTMP/a2/.hg/strip-backup/5fddd98957c8-f9244fa1-backup.hg (glob) $ hg tglog o 7: 'D' | o 6: 'C' | @ 5: 'H' | | o 4: 'G' |/| o | 3: 'F' | | | o 2: 'E' |/ | o 1: 'B' |/ o 0: 'A' $ hg manifest --rev tip A C D F H $ cd .. Rebasing B onto H using detach (same as not using it): $ hg clone -q -u . a a3 $ cd a3 $ hg tglog @ 7: 'H' | | o 6: 'G' |/| o | 5: 'F' | | | o 4: 'E' |/ | o 3: 'D' | | | o 2: 'C' | | | o 1: 'B' |/ o 0: 'A' $ hg rebase -s 1 -d 7 rebasing 1:42ccdea3bb16 "B" rebasing 2:5fddd98957c8 "C" rebasing 3:32af7686d403 "D" saved backup bundle to $TESTTMP/a3/.hg/strip-backup/42ccdea3bb16-3cb021d3-backup.hg (glob) $ hg tglog o 7: 'D' | o 6: 'C' | o 5: 'B' | @ 4: 'H' | | o 3: 'G' |/| o | 2: 'F' | | | o 1: 'E' |/ o 0: 'A' $ hg manifest --rev tip A B C D F H $ cd .. Rebasing C onto H detaching from B and collapsing: $ hg clone -q -u . a a4 $ cd a4 $ hg phase --force --secret 3 $ hg tglog @ 7: 'H' | | o 6: 'G' |/| o | 5: 'F' | | | o 4: 'E' |/ | o 3: 'D' | | | o 2: 'C' | | | o 1: 'B' |/ o 0: 'A' $ hg rebase --collapse -s 2 -d 7 rebasing 2:5fddd98957c8 "C" rebasing 3:32af7686d403 "D" saved backup bundle to $TESTTMP/a4/.hg/strip-backup/5fddd98957c8-f9244fa1-backup.hg (glob) $ hg log -G --template "{rev}:{phase} '{desc}' {branches}\n" o 6:secret 'Collapsed revision | * C | * D' @ 5:draft 'H' | | o 4:draft 'G' |/| o | 3:draft 'F' | | | o 2:draft 'E' |/ | o 1:draft 'B' |/ o 0:draft 'A' $ hg manifest --rev tip A C D F H $ cd .. Rebasing across null as ancestor $ hg clone -q -U a a5 $ cd a5 $ echo x > x $ hg add x $ hg ci -m "extra branch" created new head $ hg tglog @ 8: 'extra branch' o 7: 'H' | | o 6: 'G' |/| o | 5: 'F' | | | o 4: 'E' |/ | o 3: 'D' | | | o 2: 'C' | | | o 1: 'B' |/ o 0: 'A' $ hg rebase -s 1 -d tip rebasing 1:42ccdea3bb16 "B" rebasing 2:5fddd98957c8 "C" rebasing 3:32af7686d403 "D" saved backup bundle to $TESTTMP/a5/.hg/strip-backup/42ccdea3bb16-3cb021d3-backup.hg (glob) $ hg tglog o 8: 'D' | o 7: 'C' | o 6: 'B' | @ 5: 'extra branch' o 4: 'H' | | o 3: 'G' |/| o | 2: 'F' | | | o 1: 'E' |/ o 0: 'A' $ hg rebase -d 5 -s 7 rebasing 7:13547172c9c0 "C" rebasing 8:4e27a76c371a "D" (tip) saved backup bundle to $TESTTMP/a5/.hg/strip-backup/13547172c9c0-35685ded-backup.hg (glob) $ hg tglog o 8: 'D' | o 7: 'C' | | o 6: 'B' |/ @ 5: 'extra branch' o 4: 'H' | | o 3: 'G' |/| o | 2: 'F' | | | o 1: 'E' |/ o 0: 'A' $ cd .. Verify that target is not selected as external rev (issue3085) $ hg clone -q -U a a6 $ cd a6 $ hg up -q 6 $ echo "I" >> E $ hg ci -m "I" $ hg merge 7 1 files updated, 0 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) $ hg ci -m "Merge" $ echo "J" >> F $ hg ci -m "J" $ hg rebase -s 8 -d 7 --collapse --config ui.merge=internal:other rebasing 8:9790e768172d "I" rebasing 9:5d7b11f5fb97 "Merge" rebasing 10:9427d4d5af81 "J" (tip) saved backup bundle to $TESTTMP/a6/.hg/strip-backup/9790e768172d-c2111e9d-backup.hg (glob) $ hg tglog @ 8: 'Collapsed revision | * I | * Merge | * J' o 7: 'H' | | o 6: 'G' |/| o | 5: 'F' | | | o 4: 'E' |/ | o 3: 'D' | | | o 2: 'C' | | | o 1: 'B' |/ o 0: 'A' $ hg log --rev tip changeset: 8:9472f4b1d736 tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: Collapsed revision $ cd .. Ensure --continue restores a correct state (issue3046) and phase: $ hg clone -q a a7 $ cd a7 $ hg up -q 3 $ echo 'H2' > H $ hg ci -A -m 'H2' adding H $ hg phase --force --secret 8 $ hg rebase -s 8 -d 7 --config ui.merge=internal:fail rebasing 8:6215fafa5447 "H2" (tip) merging H warning: conflicts while merging H! (edit, then use 'hg resolve --mark') unresolved conflicts (see hg resolve, then hg rebase --continue) [1] $ hg resolve --all -t internal:local (no more unresolved files) continue: hg rebase --continue $ hg rebase -c rebasing 8:6215fafa5447 "H2" (tip) note: rebase of 8:6215fafa5447 created no changes to commit saved backup bundle to $TESTTMP/a7/.hg/strip-backup/6215fafa5447-5804ebd5-backup.hg (glob) $ hg log -G --template "{rev}:{phase} '{desc}' {branches}\n" @ 7:draft 'H' | | o 6:draft 'G' |/| o | 5:draft 'F' | | | o 4:draft 'E' |/ | o 3:draft 'D' | | | o 2:draft 'C' | | | o 1:draft 'B' |/ o 0:draft 'A' $ cd ..