mirror of
https://github.com/git/git.git
synced 2024-06-02 15:16:11 +02:00
3ab3185f99
Just as rev-list recently learned to combine filters and bitmaps, let's do the same for pack-objects. The infrastructure is all there; we just need to pass along our filter options, and the pack-bitmap code will decide to use bitmaps or not. This unsurprisingly makes things faster for partial clones of large repositories (here we're cloning linux.git): Test HEAD^ HEAD ------------------------------------------------------------------------------ 5310.11: simulated partial clone 38.94(37.28+5.87) 11.06(11.27+4.07) -71.6% Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
94 lines
2.3 KiB
Bash
Executable File
94 lines
2.3 KiB
Bash
Executable File
#!/bin/sh
|
|
|
|
test_description='Tests pack performance using bitmaps'
|
|
. ./perf-lib.sh
|
|
|
|
test_perf_large_repo
|
|
|
|
# note that we do everything through config,
|
|
# since we want to be able to compare bitmap-aware
|
|
# git versus non-bitmap git
|
|
#
|
|
# We intentionally use the deprecated pack.writebitmaps
|
|
# config so that we can test against older versions of git.
|
|
test_expect_success 'setup bitmap config' '
|
|
git config pack.writebitmaps true
|
|
'
|
|
|
|
test_perf 'repack to disk' '
|
|
git repack -ad
|
|
'
|
|
|
|
test_perf 'simulated clone' '
|
|
git pack-objects --stdout --all </dev/null >/dev/null
|
|
'
|
|
|
|
test_perf 'simulated fetch' '
|
|
have=$(git rev-list HEAD~100 -1) &&
|
|
{
|
|
echo HEAD &&
|
|
echo ^$have
|
|
} | git pack-objects --revs --stdout >/dev/null
|
|
'
|
|
|
|
test_perf 'pack to file' '
|
|
git pack-objects --all pack1 </dev/null >/dev/null
|
|
'
|
|
|
|
test_perf 'pack to file (bitmap)' '
|
|
git pack-objects --use-bitmap-index --all pack1b </dev/null >/dev/null
|
|
'
|
|
|
|
test_perf 'rev-list (commits)' '
|
|
git rev-list --all --use-bitmap-index >/dev/null
|
|
'
|
|
|
|
test_perf 'rev-list (objects)' '
|
|
git rev-list --all --use-bitmap-index --objects >/dev/null
|
|
'
|
|
|
|
test_perf 'rev-list count with blob:none' '
|
|
git rev-list --use-bitmap-index --count --objects --all \
|
|
--filter=blob:none >/dev/null
|
|
'
|
|
|
|
test_perf 'rev-list count with blob:limit=1k' '
|
|
git rev-list --use-bitmap-index --count --objects --all \
|
|
--filter=blob:limit=1k >/dev/null
|
|
'
|
|
|
|
test_perf 'simulated partial clone' '
|
|
git pack-objects --stdout --all --filter=blob:none </dev/null >/dev/null
|
|
'
|
|
|
|
test_expect_success 'create partial bitmap state' '
|
|
# pick a commit to represent the repo tip in the past
|
|
cutoff=$(git rev-list HEAD~100 -1) &&
|
|
orig_tip=$(git rev-parse HEAD) &&
|
|
|
|
# now kill off all of the refs and pretend we had
|
|
# just the one tip
|
|
rm -rf .git/logs .git/refs/* .git/packed-refs &&
|
|
git update-ref HEAD $cutoff &&
|
|
|
|
# and then repack, which will leave us with a nice
|
|
# big bitmap pack of the "old" history, and all of
|
|
# the new history will be loose, as if it had been pushed
|
|
# up incrementally and exploded via unpack-objects
|
|
git repack -Ad &&
|
|
|
|
# and now restore our original tip, as if the pushes
|
|
# had happened
|
|
git update-ref HEAD $orig_tip
|
|
'
|
|
|
|
test_perf 'clone (partial bitmap)' '
|
|
git pack-objects --stdout --all </dev/null >/dev/null
|
|
'
|
|
|
|
test_perf 'pack to file (partial bitmap)' '
|
|
git pack-objects --use-bitmap-index --all pack2b </dev/null >/dev/null
|
|
'
|
|
|
|
test_done
|