Mercurial > hgsubversion
view tests/fixtures/replace_branch_with_branch.sh @ 1457:019c3e194fba
tests: optimise creating repositories and loading dumps
Previously, we'd use svnadmin for creating repositories and loading
dumps. That tends to be a bit slow, as it forks a new process and
loads the Subversion libraries into it. Instead, we extend our
existing Subversion wrappers and load the dumps using the API.
This is a noticable speedup. The only downside is that we rely on
Subversion and Subvertpy to correctly close all file descriptors; an
assumption which hasn't always held in the past.
I ran some benchmarks on my relatively slow Mac with $TMPDIR on a
ramdisk, and they showed a significant change:
I compared ten runs of each with Subvertpy:
min: -18.8% (299.1s -> 243.0s)
median: -20.0% (307.1s -> 245.6s)
...and three runs of each with SWIG:
min: -22.8% (368.7s -> 284.7s)
median: -25.7% (384.4s -> 285.5s)
(Since the timing measures wall clock time, the minimum time is likely
to be the most accurate and useful measurement.)
| author | Dan Villiom Podlaski Christiansen <danchr@gmail.com> |
|---|---|
| date | Tue, 07 Jun 2016 09:15:53 +0200 |
| parents | 2723152c8111 |
| children |
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#!/bin/sh RSVN="`pwd`/rsvn.py" export PATH=/bin:/usr/bin mkdir temp cd temp svnadmin create repo svn co file://`pwd`/repo wc cd wc mkdir trunk branches cd trunk echo a > a cd .. svn add * svn ci -m 'initial' svn up svn cp trunk branches/branch1 svn ci -m 'branch1' svn up echo b > branches/branch1/b echo d > branches/branch1/d mkdir branches/branch1/dir echo e > branches/branch1/dir/e echo f > branches/branch1/f echo g > branches/branch1/g svn add branches/branch1/b branches/branch1/d branches/branch1/dir \ branches/branch1/f branches/branch1/g svn ci -m 'add b to branch1' svn cp trunk branches/branch2 svn ci -m 'branch2' svn up echo c > branches/branch2/c mkdir branches/branch2/dir echo e2 > branches/branch2/dir/e echo f2 > branches/branch2/f svn add branches/branch2/c branches/branch2/dir branches/branch2/f svn ci -m 'add c to branch2' svn up # Clobber branch1 with branch2 cd .. cat > clobber.rsvn <<EOF rdelete branches/branch1 rcopy branches/branch2 branches/branch1 rcopy branches/branch1/d branches/branch1/a rcopy branches/branch1/dir branches/branch1/dir rcopy branches/branch1/dir branches/branch1/dir2 rcopy branches/branch1/f branches/branch1/f rcopy branches/branch1/g branches/branch1/g EOF python $RSVN --message=blah --username=evil `pwd`/repo < clobber.rsvn svnadmin dump repo > ../replace_branch_with_branch.svndump