read-cache: add simple performance test
Add the helper test-read-cache, which can be used to call read_cache and discard_cache in a loop as well as a performance check based on it. Signed-off-by: René Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
René Scharfe committed
Jun 9, 2013 at 19:39 UTC
1ecb5ff141f6e54727c746446b52af51016e662c
4 files changed
+29
.gitignore
+1
@@ -190,6 +190,7 @@
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/test-mktemp
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/test-parse-options
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/test-path-utils
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+/test-read-cache
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/test-regex
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/test-revision-walking
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/test-run-command
Makefile
+1
@@ -558,6 +558,7 @@ TEST_PROGRAMS_NEED_X += test-mergesort
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TEST_PROGRAMS_NEED_X += test-mktemp
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TEST_PROGRAMS_NEED_X += test-parse-options
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TEST_PROGRAMS_NEED_X += test-path-utils
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+TEST_PROGRAMS_NEED_X += test-read-cache
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TEST_PROGRAMS_NEED_X += test-regex
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TEST_PROGRAMS_NEED_X += test-revision-walking
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TEST_PROGRAMS_NEED_X += test-run-command
t/perf/p0002-read-cache.sh
new
+14
@@ -0,0 +1,14 @@
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+#!/bin/sh
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+
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+test_description="Tests performance of reading the index"
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+
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+. ./perf-lib.sh
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+
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+test_perf_default_repo
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+
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+count=1000
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+test_perf "read_cache/discard_cache $count times" "
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+ test-read-cache $count
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+"
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+
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+test_done
test-read-cache.c
new
+13
@@ -0,0 +1,13 @@
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+#include "cache.h"
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+
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+int main (int argc, char **argv)
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+{
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+ int i, cnt = 1;
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+ if (argc == 2)
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+ cnt = strtol(argv[1], NULL, 0);
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+ for (i = 0; i < cnt; i++) {
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+ read_cache();
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+ discard_cache();
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+ }
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+ return 0;
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+}