From: René Scharfe <l.s.r@xxxxxx>
Create a performance test to see how the skipList implementation
performs. First we setup N bad commits, then we see how progressively
working our way up to 0..N in increments of 10x does. I.e. the
needle(s) in the haystack get progressively more numerous.
Signed-off-by: René Scharfe <l.s.r@xxxxxx>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx>
---
t/perf/p1450-fsck-skip-list.sh | 40 ++++++++++++++++++++++++++++++++++
1 file changed, 40 insertions(+)
create mode 100755 t/perf/p1450-fsck-skip-list.sh
diff --git a/t/perf/p1450-fsck-skip-list.sh b/t/perf/p1450-fsck-skip-list.sh
new file mode 100755
index 0000000000..c2b97d2487
--- /dev/null
+++ b/t/perf/p1450-fsck-skip-list.sh
@@ -0,0 +1,40 @@
+#!/bin/sh
+
+test_description='Test fsck skipList performance'
+
+. ./perf-lib.sh
+
+test_perf_fresh_repo
+
+n=1000000
+
+test_expect_success "setup $n bad commits" '
+ for i in $(test_seq 1 $n)
+ do
+ echo "commit refs/heads/master" &&
+ echo "committer C <c@xxxxxxxxxxx> 1234567890 +0000" &&
+ echo "data <<EOF" &&
+ echo "$i.Q." &&
+ echo "EOF"
+ done | q_to_nul | git fast-import
+'
+
+skip=0
+while test $skip -le $n
+do
+ test_expect_success "create skipList for $skip bad commits" '
+ git log --format=%H --max-count=$skip |
+ sort >skiplist
+ '
+
+ test_perf "fsck with $skip skipped bad commits" '
+ git -c fsck.skipList=skiplist fsck
+ '
+
+ case $skip in
+ 0) skip=1 ;;
+ *) skip=${skip}0 ;;
+ esac
+done
+
+test_done
--
2.19.0.rc0.228.g281dcd1b4d0
