store: optimize fncache._write by direncoding the contents in one go
For a netbeans clone on Windows 7 x64:
Before:
$ hg perffncachewrite
! wall 0.210000 comb 0.218401 user 0.202801 sys 0.015600 (best of 47)
After:
$ hg perffncachewrite
! wall 0.104000 comb 0.109201 user 0.078000 sys 0.031200 (best of 95)
This emulates the effects of an hg pull --rebase in which the remote repo
already has one local mq patch
$ cat >> $HGRCPATH <<EOF
> [extensions]
> graphlog=
> rebase=
> mq=
>
> [phases]
> publish=False
>
> [alias]
> tglog = log -G --template "{rev}: '{desc}' tags: {tags}\n"
> EOF
$ hg init a
$ cd a
$ hg qinit -c
$ echo c1 > c1
$ hg add c1
$ hg ci -m C1
$ echo r1 > r1
$ hg add r1
$ hg ci -m R1
$ hg up -q 0
$ hg qnew p0.patch
$ echo p0 > p0
$ hg add p0
$ hg qref -m P0
$ hg qnew p1.patch
$ echo p1 > p1
$ hg add p1
$ hg qref -m P1
$ hg export qtip > p1.patch
$ hg up -q -C 1
$ hg import p1.patch
applying p1.patch
$ rm p1.patch
$ hg up -q -C qtip
$ hg rebase
saved backup bundle to $TESTTMP/a/.hg/strip-backup/*-backup.hg (glob)
$ hg tglog
@ 3: 'P0' tags: p0.patch qbase qtip tip
|
o 2: 'P1' tags: qparent
|
o 1: 'R1' tags:
|
o 0: 'C1' tags:
$ cd ..
$ hg init b
$ cd b
$ hg qinit -c
$ for i in r0 r1 r2 r3 r4 r5 r6;
> do
> echo $i > $i
> hg ci -Am $i
> done
adding r0
adding r1
adding r2
adding r3
adding r4
adding r5
adding r6
$ hg qimport -r 1:tip
$ hg up -q 0
$ for i in r1 r3 r7 r8;
> do
> echo $i > $i
> hg ci -Am branch2-$i
> done
adding r1
created new head
adding r3
adding r7
adding r8
$ echo somethingelse > r4
$ hg ci -Am branch2-r4
adding r4
$ echo r6 > r6
$ hg ci -Am branch2-r6
adding r6
$ hg up -q qtip
$ HGMERGE=internal:fail hg rebase
abort: unresolved conflicts (see hg resolve, then hg rebase --continue)
[255]
$ HGMERGE=internal:local hg resolve --all
$ hg rebase --continue
saved backup bundle to $TESTTMP/b/.hg/strip-backup/*-backup.hg (glob)
$ hg tglog
@ 8: 'r5' tags: 5.diff qtip tip
|
o 7: 'r2' tags: 2.diff qbase
|
o 6: 'branch2-r6' tags: qparent
|
o 5: 'branch2-r4' tags:
|
o 4: 'branch2-r8' tags:
|
o 3: 'branch2-r7' tags:
|
o 2: 'branch2-r3' tags:
|
o 1: 'branch2-r1' tags:
|
o 0: 'r0' tags:
$ cd ..