git@vger.kernel.org list mirror (unofficial, one of many)
 help / color / mirror / code / Atom feed
blob bbe1eb26a9ef5505976f0d15f654462a79674f24 2093 bytes (raw)
name: t/perf/p5310-pack-bitmaps.sh 	 # note: path name is non-authoritative(*)

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
 
#!/bin/sh

test_description='Tests pack performance using bitmaps'
. ./perf-lib.sh

test_perf_large_repo

# note that we do everything through config,
# since we want to be able to compare bitmap-aware
# git versus non-bitmap git
#
# We intentionally use the deprecated pack.writebitmaps
# config so that we can test against older versions of git.
test_expect_success 'setup bitmap config' '
	git config pack.writebitmaps true
'

test_perf 'repack to disk' '
	git repack -ad
'

test_perf 'simulated clone' '
	git pack-objects --stdout --all </dev/null >/dev/null
'

test_perf 'simulated fetch' '
	have=$(git rev-list HEAD~100 -1) &&
	{
		echo HEAD &&
		echo ^$have
	} | git pack-objects --revs --stdout >/dev/null
'

test_perf 'pack to file' '
	git pack-objects --all pack1 </dev/null >/dev/null
'

test_perf 'pack to file (bitmap)' '
	git pack-objects --use-bitmap-index --all pack1b </dev/null >/dev/null
'

test_perf 'rev-list count with blob:none' '
	git rev-list --use-bitmap-index --count --objects --all \
		--filter=blob:none >/dev/null
'

test_perf 'rev-list count with blob:limit=1k' '
	git rev-list --use-bitmap-index --count --objects --all \
		--filter=blob:limit=1k >/dev/null
'

test_expect_success 'create partial bitmap state' '
	# pick a commit to represent the repo tip in the past
	cutoff=$(git rev-list HEAD~100 -1) &&
	orig_tip=$(git rev-parse HEAD) &&

	# now kill off all of the refs and pretend we had
	# just the one tip
	rm -rf .git/logs .git/refs/* .git/packed-refs &&
	git update-ref HEAD $cutoff &&

	# and then repack, which will leave us with a nice
	# big bitmap pack of the "old" history, and all of
	# the new history will be loose, as if it had been pushed
	# up incrementally and exploded via unpack-objects
	git repack -Ad &&

	# and now restore our original tip, as if the pushes
	# had happened
	git update-ref HEAD $orig_tip
'

test_perf 'clone (partial bitmap)' '
	git pack-objects --stdout --all </dev/null >/dev/null
'

test_perf 'pack to file (partial bitmap)' '
	git pack-objects --use-bitmap-index --all pack2b </dev/null >/dev/null
'

test_done

debug log:

solving bbe1eb26a9 ...
found bbe1eb26a9 in https://public-inbox.org/git/20200213022523.GL1126038@coredump.intra.peff.net/
found 3383983450 in https://public-inbox.org/git/20200213022347.GK1126038@coredump.intra.peff.net/
found 6a3a42531b in https://80x24.org/mirrors/git.git
preparing index
index prepared:
100755 6a3a42531b056285ac3a42cabe97c41146fa4291	t/perf/p5310-pack-bitmaps.sh

applying [1/2] https://public-inbox.org/git/20200213022347.GK1126038@coredump.intra.peff.net/
diff --git a/t/perf/p5310-pack-bitmaps.sh b/t/perf/p5310-pack-bitmaps.sh
index 6a3a42531b..3383983450 100755


applying [2/2] https://public-inbox.org/git/20200213022523.GL1126038@coredump.intra.peff.net/
diff --git a/t/perf/p5310-pack-bitmaps.sh b/t/perf/p5310-pack-bitmaps.sh
index 3383983450..bbe1eb26a9 100755

Checking patch t/perf/p5310-pack-bitmaps.sh...
Applied patch t/perf/p5310-pack-bitmaps.sh cleanly.
Checking patch t/perf/p5310-pack-bitmaps.sh...
Applied patch t/perf/p5310-pack-bitmaps.sh cleanly.

index at:
100755 bbe1eb26a9ef5505976f0d15f654462a79674f24	t/perf/p5310-pack-bitmaps.sh

(*) Git path names are given by the tree(s) the blob belongs to.
    Blobs themselves have no identifier aside from the hash of its contents.^

Code repositories for project(s) associated with this public inbox

	https://80x24.org/mirrors/git.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).