From: "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
To: git@vger.kernel.org
Cc: "Junio C Hamano" <gitster@pobox.com>,
"René Scharfe" <l.s.r@web.de>,
"Ramsay Jones" <ramsay@ramsayjones.plus.com>,
"Johannes Schindelin" <johannes.schindelin@gmx.de>,
"Jeff King" <peff@peff.net>,
"Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
Subject: [PATCH v4 5/8] fsck: add a performance test for skipList
Date: Tue, 28 Aug 2018 09:52:16 +0000 [thread overview]
Message-ID: <20180828095219.23296-6-avarab@gmail.com> (raw)
In-Reply-To: <87lg8refcr.fsf@evledraar.gmail.com>
From: René Scharfe <l.s.r@web.de>
Create a performance test to see how the skipList implementation
performs. First we setup N bad commits, then we see how progressively
working our way up to 0..N in increments of 10x does. I.e. the
needle(s) in the haystack get progressively more numerous.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
---
t/perf/p1450-fsck-skip-list.sh | 40 ++++++++++++++++++++++++++++++++++
1 file changed, 40 insertions(+)
create mode 100755 t/perf/p1450-fsck-skip-list.sh
diff --git a/t/perf/p1450-fsck-skip-list.sh b/t/perf/p1450-fsck-skip-list.sh
new file mode 100755
index 0000000000..c2b97d2487
--- /dev/null
+++ b/t/perf/p1450-fsck-skip-list.sh
@@ -0,0 +1,40 @@
+#!/bin/sh
+
+test_description='Test fsck skipList performance'
+
+. ./perf-lib.sh
+
+test_perf_fresh_repo
+
+n=1000000
+
+test_expect_success "setup $n bad commits" '
+ for i in $(test_seq 1 $n)
+ do
+ echo "commit refs/heads/master" &&
+ echo "committer C <c@example.com> 1234567890 +0000" &&
+ echo "data <<EOF" &&
+ echo "$i.Q." &&
+ echo "EOF"
+ done | q_to_nul | git fast-import
+'
+
+skip=0
+while test $skip -le $n
+do
+ test_expect_success "create skipList for $skip bad commits" '
+ git log --format=%H --max-count=$skip |
+ sort >skiplist
+ '
+
+ test_perf "fsck with $skip skipped bad commits" '
+ git -c fsck.skipList=skiplist fsck
+ '
+
+ case $skip in
+ 0) skip=1 ;;
+ *) skip=${skip}0 ;;
+ esac
+done
+
+test_done
--
2.19.0.rc0.228.g281dcd1b4d0
next prev parent reply other threads:[~2018-08-28 9:52 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-27 19:43 [PATCH v3 0/7] use oidset for skiplist + docs + tests + comment support Ævar Arnfjörð Bjarmason
2018-08-27 19:43 ` [PATCH v3 1/7] fsck tests: setup of bogus commit object Ævar Arnfjörð Bjarmason
2018-08-27 19:43 ` [PATCH v3 2/7] fsck tests: add a test for no skipList input Ævar Arnfjörð Bjarmason
2018-08-27 19:43 ` [PATCH v3 3/7] fsck: document and test sorted " Ævar Arnfjörð Bjarmason
2018-08-27 19:43 ` [PATCH v3 4/7] fsck: document and test commented & empty line " Ævar Arnfjörð Bjarmason
2018-08-27 19:43 ` [PATCH v3 5/7] fsck: use strbuf_getline() to read skiplist file Ævar Arnfjörð Bjarmason
2018-08-27 19:43 ` [PATCH v3 6/7] fsck: use oidset for skiplist Ævar Arnfjörð Bjarmason
2018-08-27 20:15 ` Ævar Arnfjörð Bjarmason
2018-08-28 9:52 ` [PATCH v4 0/8] use oidset for skiplist + docs + tests + comment support Ævar Arnfjörð Bjarmason
2018-08-28 9:52 ` [PATCH v4 1/8] fsck tests: setup of bogus commit object Ævar Arnfjörð Bjarmason
2018-08-28 9:52 ` [PATCH v4 2/8] fsck tests: add a test for no skipList input Ævar Arnfjörð Bjarmason
2018-08-28 9:52 ` [PATCH v4 3/8] fsck: document and test sorted " Ævar Arnfjörð Bjarmason
2018-08-28 9:52 ` [PATCH v4 4/8] fsck: document and test commented & empty line " Ævar Arnfjörð Bjarmason
2018-08-28 9:52 ` Ævar Arnfjörð Bjarmason [this message]
2018-08-28 9:52 ` [PATCH v4 6/8] fsck: use strbuf_getline() to read skiplist file Ævar Arnfjörð Bjarmason
2018-08-28 9:52 ` [PATCH v4 7/8] fsck: use oidset instead of oid_array for skipList Ævar Arnfjörð Bjarmason
2018-08-28 9:52 ` [PATCH v4 8/8] fsck: support comments & empty lines in skipList Ævar Arnfjörð Bjarmason
2018-08-28 14:59 ` René Scharfe
2018-09-03 14:49 ` [PATCH v5 00/10] use oidset for skiplist + docs + tests + comment support Ævar Arnfjörð Bjarmason
2018-09-03 14:49 ` [PATCH v5 01/10] fsck tests: setup of bogus commit object Ævar Arnfjörð Bjarmason
2018-09-03 14:49 ` [PATCH v5 02/10] fsck tests: add a test for no skipList input Ævar Arnfjörð Bjarmason
2018-09-03 14:49 ` [PATCH v5 03/10] fsck: document and test sorted " Ævar Arnfjörð Bjarmason
2018-09-03 14:49 ` [PATCH v5 04/10] fsck: document and test commented & empty line " Ævar Arnfjörð Bjarmason
2018-09-03 14:49 ` [PATCH v5 05/10] fsck: document that skipList input must be unabbreviated Ævar Arnfjörð Bjarmason
2018-09-03 14:49 ` [PATCH v5 06/10] fsck: add a performance test Ævar Arnfjörð Bjarmason
2018-09-03 14:49 ` [PATCH v5 07/10] fsck: add a performance test for skipList Ævar Arnfjörð Bjarmason
2018-09-03 14:49 ` [PATCH v5 08/10] fsck: use strbuf_getline() to read skiplist file Ævar Arnfjörð Bjarmason
2018-09-03 14:49 ` [PATCH v5 09/10] fsck: use oidset instead of oid_array for skipList Ævar Arnfjörð Bjarmason
2018-09-03 14:49 ` [PATCH v5 10/10] fsck: support comments & empty lines in skipList Ævar Arnfjörð Bjarmason
2018-08-28 14:29 ` [PATCH v3 6/7] fsck: use oidset for skiplist René Scharfe
2018-08-27 19:43 ` [PATCH v3 7/7] fsck: support comments & empty lines in skipList Ævar Arnfjörð Bjarmason
2018-08-27 19:46 ` [PATCH v3 0/7] use oidset for skiplist + docs + tests + comment support Ævar Arnfjörð Bjarmason
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