1#!/bin/sh 2 3test_description='Tests pack performance using bitmaps' 4. ./perf-lib.sh 5 6test_perf_large_repo 7 8# note that we do everything through config, 9# since we want to be able to compare bitmap-aware 10# git versus non-bitmap git 11# 12# We intentionally use the deprecated pack.writebitmaps 13# config so that we can test against older versions of git. 14test_expect_success 'setup bitmap config'' 15 git config pack.writebitmaps true && 16 git config pack.writebitmaphashcache true 17' 18 19test_perf 'repack to disk'' 20 git repack -ad 21' 22 23test_perf 'simulated clone'' 24 git pack-objects --stdout --all </dev/null >/dev/null 25' 26 27test_perf 'simulated fetch'' 28 have=$(git rev-list HEAD~100 -1)&& 29 { 30 echo HEAD && 31 echo ^$have 32 } | git pack-objects --revs --stdout >/dev/null 33' 34 35test_expect_success 'create partial bitmap state'' 36 # pick a commit to represent the repo tip in the past 37 cutoff=$(git rev-list HEAD~100 -1)&& 38 orig_tip=$(git rev-parse HEAD)&& 39 40 # now kill off all of the refs and pretend we had 41 # just the one tip 42 rm -rf .git/logs .git/refs/* .git/packed-refs 43 git update-ref HEAD$cutoff 44 45 # and then repack, which will leave us with a nice 46 # big bitmap pack of the "old" history, and all of 47 # the new history will be loose, as if it had been pushed 48 # up incrementally and exploded via unpack-objects 49 git repack -Ad 50 51 # and now restore our original tip, as if the pushes 52 # had happened 53 git update-ref HEAD$orig_tip 54' 55 56test_perf 'partial bitmap'' 57 git pack-objects --stdout --all </dev/null >/dev/null 58' 59 60test_done