[PATCH 6/8] t/perf: add Scalar performance tests

From: Victoria Dye via GitGitGadget <gitgitgadget@gmail.com>
Date: Aug 31, 2022, 16:02 UTC
Message-ID: <42ab39f21212d3da1af3546d3425aa790637056f.1661961746.git.gitgitgadget@gmail.com>
In-Reply-To: <pull.1341.git.1661961746.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)

Signed-off-by: Victoria Dye <vdye@github.com>
---
 t/perf/p9210-scalar.sh | 43 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 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..a68eb6b223d
--- /dev/null
+++ b/t/perf/p9210-scalar.sh
@@ -0,0 +1,43 @@
+#!/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://$(pwd)/to-clone" git-clone
+'
+
+test_compare_perf () {
+	command="$@"
+	test_perf "$command (scalar)" "
+		(
+			cd scalar-clone/src &&
+			$command
+		)
+	"
+
+	test_perf "$command (non-scalar)" "
+		(
+			cd git-clone &&
+			$command
+		)
+	"
+}
+
+test_compare_perf git status
+test_compare_perf test_commit --append --no-tag A
+
+test_done

-- 
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