[PATCH 2/2] p3400: add perf tests for rebasing many changes

[Christian Couder <christian.couder@gmail.com>]

Rebasing onto many changes is interesting, but it's also
interesting to see what happens when rebasing many changes.

And while at it, let's also look at the impact of using a
split index.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
---
 t/perf/p3400-rebase.sh | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/t/perf/p3400-rebase.sh b/t/perf/p3400-rebase.sh
index b3e7d525d2..ce271ca4c1 100755
--- a/t/perf/p3400-rebase.sh
+++ b/t/perf/p3400-rebase.sh
@@ -5,7 +5,7 @@ test_description='Tests rebase performance'
 
 test_perf_default_repo
 
-test_expect_success 'setup' '
+test_expect_success 'setup rebasing on top of a lot of changes' '
 	git checkout -f -b base &&
 	git checkout -b to-rebase &&
 	git checkout -b upstream &&
@@ -33,4 +33,24 @@ test_perf 'rebase on top of a lot of unrelated changes' '
 	git rebase --onto base HEAD^
 '
 
+test_expect_success 'setup rebasing many changes without split-index' '
+	git config core.splitIndex false &&
+	git checkout -b upstream2 to-rebase &&
+	git checkout -b to-rebase2 upstream
+'
+
+test_perf 'rebase a lot of unrelated changes without split-index' '
+	git rebase --onto upstream2 base &&
+	git rebase --onto base upstream2
+'
+
+test_expect_success 'setup rebasing many changes with split-index' '
+	git config core.splitIndex true
+'
+
+test_perf 'rebase a lot of unrelated changes with split-index' '
+	git rebase --onto upstream2 base &&
+	git rebase --onto base upstream2
+'
+
 test_done
-- 
2.13.0.rc1.83.g83955d3ecd.dirty