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-rwxr-xr-xt/perf/p2000-sparse-operations.sh129
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diff --git a/t/perf/p2000-sparse-operations.sh b/t/perf/p2000-sparse-operations.sh
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+#!/bin/sh
+
+test_description="test performance of Git operations using the index"
+
+. ./perf-lib.sh
+
+test_perf_default_repo
+
+SPARSE_CONE=f2/f4
+
+test_expect_success 'setup repo and indexes' '
+ git reset --hard HEAD &&
+
+ # Remove submodules from the example repo, because our
+ # duplication of the entire repo creates an unlikely data shape.
+ if git config --file .gitmodules --get-regexp "submodule.*.path" >modules
+ then
+ git rm $(awk "{print \$2}" modules) &&
+ git commit -m "remove submodules" || return 1
+ fi &&
+
+ echo bogus >a &&
+ cp a b &&
+ git add a b &&
+ git commit -m "level 0" &&
+ BLOB=$(git rev-parse HEAD:a) &&
+ OLD_COMMIT=$(git rev-parse HEAD) &&
+ OLD_TREE=$(git rev-parse HEAD^{tree}) &&
+
+ for i in $(test_seq 1 3)
+ do
+ cat >in <<-EOF &&
+ 100755 blob $BLOB a
+ 040000 tree $OLD_TREE f1
+ 040000 tree $OLD_TREE f2
+ 040000 tree $OLD_TREE f3
+ 040000 tree $OLD_TREE f4
+ EOF
+ NEW_TREE=$(git mktree <in) &&
+ NEW_COMMIT=$(git commit-tree $NEW_TREE -p $OLD_COMMIT -m "level $i") &&
+ OLD_TREE=$NEW_TREE &&
+ OLD_COMMIT=$NEW_COMMIT || return 1
+ done &&
+
+ git sparse-checkout init --cone &&
+ git sparse-checkout set $SPARSE_CONE &&
+ git checkout -b wide $OLD_COMMIT &&
+
+ for l2 in f1 f2 f3 f4
+ do
+ echo more bogus >>$SPARSE_CONE/$l2/a &&
+ git commit -a -m "edit $SPARSE_CONE/$l2/a" || return 1
+ done &&
+
+ git -c core.sparseCheckoutCone=true clone --branch=wide --sparse . full-v3 &&
+ (
+ cd full-v3 &&
+ git sparse-checkout init --cone &&
+ git sparse-checkout set $SPARSE_CONE &&
+ git config index.version 3 &&
+ git update-index --index-version=3 &&
+ git checkout HEAD~4
+ ) &&
+ git -c core.sparseCheckoutCone=true clone --branch=wide --sparse . full-v4 &&
+ (
+ cd full-v4 &&
+ git sparse-checkout init --cone &&
+ git sparse-checkout set $SPARSE_CONE &&
+ git config index.version 4 &&
+ git update-index --index-version=4 &&
+ git checkout HEAD~4
+ ) &&
+ git -c core.sparseCheckoutCone=true clone --branch=wide --sparse . sparse-v3 &&
+ (
+ cd sparse-v3 &&
+ git sparse-checkout init --cone --sparse-index &&
+ git sparse-checkout set $SPARSE_CONE &&
+ git config index.version 3 &&
+ git update-index --index-version=3 &&
+ git checkout HEAD~4
+ ) &&
+ git -c core.sparseCheckoutCone=true clone --branch=wide --sparse . sparse-v4 &&
+ (
+ cd sparse-v4 &&
+ git sparse-checkout init --cone --sparse-index &&
+ git sparse-checkout set $SPARSE_CONE &&
+ git config index.version 4 &&
+ git update-index --index-version=4 &&
+ git checkout HEAD~4
+ )
+'
+
+test_perf_on_all () {
+ command="$@"
+ for repo in full-v3 full-v4 \
+ sparse-v3 sparse-v4
+ do
+ test_perf "$command ($repo)" "
+ (
+ cd $repo &&
+ echo >>$SPARSE_CONE/a &&
+ $command
+ )
+ "
+ done
+}
+
+test_perf_on_all git status
+test_perf_on_all 'git stash && git stash pop'
+test_perf_on_all 'echo >>new && git stash -u && git stash pop'
+test_perf_on_all git add -A
+test_perf_on_all git add .
+test_perf_on_all git commit -a -m A
+test_perf_on_all git checkout -f -
+test_perf_on_all "git sparse-checkout add f2/f3/f1 && git sparse-checkout set $SPARSE_CONE"
+test_perf_on_all git reset
+test_perf_on_all git reset --hard
+test_perf_on_all git reset -- does-not-exist
+test_perf_on_all git diff
+test_perf_on_all git diff --cached
+test_perf_on_all git blame $SPARSE_CONE/a
+test_perf_on_all git blame $SPARSE_CONE/f3/a
+test_perf_on_all git read-tree -mu HEAD
+test_perf_on_all git checkout-index -f --all
+test_perf_on_all git update-index --add --remove $SPARSE_CONE/a
+test_perf_on_all "git rm -f $SPARSE_CONE/a && git checkout HEAD -- $SPARSE_CONE/a"
+test_perf_on_all git grep --cached --sparse bogus -- "f2/f1/f1/*"
+
+test_done