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From: git@jeffhostetler.com
To: git@vger.kernel.org
Cc: gitster@pobox.com, peff@peff.net,
	Jeff Hostetler <jeffhost@microsoft.com>
Subject: [PATCH v2 7/7] name-hash: add perf test for lazy_init_name_hash
Date: Thu, 23 Mar 2017 13:47:05 +0000	[thread overview]
Message-ID: <1490276825-41544-8-git-send-email-git@jeffhostetler.com> (raw)
In-Reply-To: <1490276825-41544-1-git-send-email-git@jeffhostetler.com>

From: Jeff Hostetler <jeffhost@microsoft.com>

Created t/perf/p0004-lazy-init-name-hash.sh test
to demonstrate correctness and performance gains
with the multithreaded version of lazy_init_name_hash().

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
---
 t/perf/p0004-lazy-init-name-hash.sh | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 t/perf/p0004-lazy-init-name-hash.sh

diff --git a/t/perf/p0004-lazy-init-name-hash.sh b/t/perf/p0004-lazy-init-name-hash.sh
new file mode 100644
index 0000000..5afa8c8
--- /dev/null
+++ b/t/perf/p0004-lazy-init-name-hash.sh
@@ -0,0 +1,19 @@
+#!/bin/sh
+
+test_description='Tests multi-threaded lazy_init_name_hash'
+. ./perf-lib.sh
+
+test_perf_large_repo
+test_checkout_worktree
+
+test_expect_success 'verify both methods build the same hashmaps' '
+	$GIT_BUILD_DIR/t/helper/test-lazy-init-name-hash$X --dump --single | sort >out.single &&
+	$GIT_BUILD_DIR/t/helper/test-lazy-init-name-hash$X --dump --multi  | sort >out.multi  &&
+	test_cmp out.single out.multi
+'
+
+test_expect_success 'multithreaded should be faster' '
+	$GIT_BUILD_DIR/t/helper/test-lazy-init-name-hash$X --perf >out.perf
+'
+
+test_done
-- 
2.7.4


  parent reply	other threads:[~2017-03-23 13:47 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-23 13:46 [PATCH v2 0/7] thread lazy_init_name_hash git
2017-03-23 13:46 ` [PATCH v2 1/7] name-hash: specify initial size for istate.dir_hash table git
2017-03-23 13:47 ` [PATCH v2 2/7] hashmap: allow memihash computation to be continued git
2017-03-23 13:47 ` [PATCH v2 3/7] hashmap: Add disallow_rehash setting git
2017-03-23 13:47 ` [PATCH v2 4/7] hashmap: document memihash_cont, hashmap_disallow_rehash api git
2017-03-23 13:47 ` [PATCH v2 5/7] name-hash: perf improvement for lazy_init_name_hash git
2017-03-23 15:25   ` Ramsay Jones
2017-03-23 17:45     ` Stefan Beller
2017-03-24 12:36       ` Jeff Hostetler
2017-03-27 20:24   ` Junio C Hamano
2017-03-27 20:50     ` Jeff Hostetler
2017-03-23 13:47 ` [PATCH v2 6/7] name-hash: add test-lazy-init-name-hash git
2017-03-23 15:29   ` Ramsay Jones
2017-03-23 13:47 ` git [this message]
2017-03-23 17:52 ` [PATCH v2 0/7] thread lazy_init_name_hash Junio C Hamano
2017-03-24 12:39   ` Jeff Hostetler
2017-03-24 16:36     ` Stefan Beller
2017-03-24 17:44     ` Junio C Hamano
2017-04-06  2:22 ` Duy Nguyen
2017-04-06 13:53   ` Jeff Hostetler

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