[PATCH v2 7/9] t/perf: add Scalar performance tests

From: Victoria Dye via GitGitGadget <gitgitgadget@gmail.com>
Date: Sep 2, 2022, 15:56 UTC
Message-ID: <d5b68c65163a384d86f08d371d4b1abc774b66db.1662134210.git.gitgitgadget@gmail.com>
In-Reply-To: <pull.1341.v2.git.1662134210.gitgitgadget@gmail.com>

From: Victoria Dye <vdye@github.com>

Create 'p9210-scalar.sh' for testing Scalar performance and comparing performance of Git operations in Scalar registrations and standard repositories. Example results:

Test this tree ------------------------------------------------------------------------ 9210.2: scalar clone 14.82(18.00+3.63) 9210.3: git clone 26.15(36.67+6.90) 9210.4: git status (scalar) 0.04(0.01+0.01) 9210.5: git status (non-scalar) 0.10(0.02+0.11) 9210.6: test_commit --append --no-tag A (scalar) 0.08(0.02+0.03) 9210.7: test_commit --append --no-tag A (non-scalar) 0.13(0.03+0.11)

Helped-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Victoria Dye <vdye@github.com>
---
 t/perf/p9210-scalar.sh | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100755 t/perf/p9210-scalar.sh

diff --git a/t/perf/p9210-scalar.sh b/t/perf/p9210-scalar.sh
new file mode 100755
index 00000000000..265f7cd1fe2
--- /dev/null
+++ b/t/perf/p9210-scalar.sh
@@ -0,0 +1,39 @@
+#!/bin/sh
+
+test_description='test scalar performance'
+. ./perf-lib.sh
+
+test_perf_large_repo "$TRASH_DIRECTORY/to-clone"
+
+test_expect_success 'enable server-side partial clone' '
+	git -C to-clone config uploadpack.allowFilter true &&
+	git -C to-clone config uploadpack.allowAnySHA1InWant true
+'
+
+test_perf 'scalar clone' '
+	rm -rf scalar-clone &&
+	scalar clone "file://$(pwd)/to-clone" scalar-clone
+'
+
+test_perf 'git clone' '
+	rm -rf git-clone &&
+	git clone "file://$(pwd)/to-clone" git-clone
+'
+
+test_compare_perf () {
+	command=$1
+	shift
+	args=$*
+	test_perf "$command $args (scalar)" "
+		$command -C scalar-clone/src $args
+	"
+
+	test_perf "$command $args (non-scalar)" "
+		$command -C git-clone $args
+	"
+}
+
+test_compare_perf git status
+test_compare_perf test_commit --append --no-tag A
+
+test_done

-- 
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