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
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
#!/bin/sh
test_description="test performance of Git operations using the index"
. ./perf-lib.sh
test_perf_default_repo
SPARSE_CONE=f2/f4
test_expect_success 'setup repo and indexes' '
git reset --hard HEAD &&
# Remove submodules from the example repo, because our
# duplication of the entire repo creates an unlikely data shape.
if git config --file .gitmodules --get-regexp "submodule.*.path" >modules
then
git rm $(awk "{print \$2}" modules) &&
git commit -m "remove submodules" || return 1
fi &&
echo bogus >a &&
cp a b &&
git add a b &&
git commit -m "level 0" &&
BLOB=$(git rev-parse HEAD:a) &&
OLD_COMMIT=$(git rev-parse HEAD) &&
OLD_TREE=$(git rev-parse HEAD^{tree}) &&
for i in $(test_seq 1 3)
do
cat >in <<-EOF &&
100755 blob $BLOB a
040000 tree $OLD_TREE f1
040000 tree $OLD_TREE f2
040000 tree $OLD_TREE f3
040000 tree $OLD_TREE f4
EOF
NEW_TREE=$(git mktree <in) &&
NEW_COMMIT=$(git commit-tree $NEW_TREE -p $OLD_COMMIT -m "level $i") &&
OLD_TREE=$NEW_TREE &&
OLD_COMMIT=$NEW_COMMIT || return 1
done &&
git sparse-checkout init --cone &&
git tag -a v1.0 -m "Final" &&
git sparse-checkout set $SPARSE_CONE &&
git checkout -b wide $OLD_COMMIT &&
for l2 in f1 f2 f3 f4
do
echo more bogus >>$SPARSE_CONE/$l2/a &&
git commit -a -m "edit $SPARSE_CONE/$l2/a" || return 1
done &&
git -c core.sparseCheckoutCone=true clone --branch=wide --sparse . full-v3 &&
(
cd full-v3 &&
git sparse-checkout init --cone &&
git sparse-checkout set $SPARSE_CONE &&
git config index.version 3 &&
git update-index --index-version=3 &&
git checkout HEAD~4
) &&
git -c core.sparseCheckoutCone=true clone --branch=wide --sparse . full-v4 &&
(
cd full-v4 &&
git sparse-checkout init --cone &&
git sparse-checkout set $SPARSE_CONE &&
git config index.version 4 &&
git update-index --index-version=4 &&
git checkout HEAD~4
) &&
git -c core.sparseCheckoutCone=true clone --branch=wide --sparse . sparse-v3 &&
(
cd sparse-v3 &&
git sparse-checkout init --cone --sparse-index &&
git sparse-checkout set $SPARSE_CONE &&
git config index.version 3 &&
git update-index --index-version=3 &&
git checkout HEAD~4
) &&
git -c core.sparseCheckoutCone=true clone --branch=wide --sparse . sparse-v4 &&
(
cd sparse-v4 &&
git sparse-checkout init --cone --sparse-index &&
git sparse-checkout set $SPARSE_CONE &&
git config index.version 4 &&
git update-index --index-version=4 &&
git checkout HEAD~4
)
'
test_perf_on_all () {
command="$@"
for repo in full-v3 full-v4 \
sparse-v3 sparse-v4
do
test_perf "$command ($repo)" "
(
cd $repo &&
echo >>$SPARSE_CONE/a &&
$command
)
"
done
}
test_perf_on_all git status
test_perf_on_all 'git stash && git stash pop'
test_perf_on_all 'echo >>new && git stash -u && git stash pop'
test_perf_on_all git add -A
test_perf_on_all git add .
test_perf_on_all git commit -a -m A
test_perf_on_all git checkout -f -
test_perf_on_all "git sparse-checkout add f2/f3/f1 && git sparse-checkout set $SPARSE_CONE"
test_perf_on_all git reset
test_perf_on_all git reset --hard
test_perf_on_all git reset -- does-not-exist
test_perf_on_all git diff
test_perf_on_all git diff --cached
test_perf_on_all git blame $SPARSE_CONE/a
test_perf_on_all git blame $SPARSE_CONE/f3/a
test_perf_on_all git read-tree -mu HEAD
test_perf_on_all git checkout-index -f --all
test_perf_on_all git update-index --add --remove $SPARSE_CONE/a
test_perf_on_all "git rm -f $SPARSE_CONE/a && git checkout HEAD -- $SPARSE_CONE/a"
test_perf_on_all git grep --cached bogus -- "f2/f1/f1/*"
test_perf_on_all git write-tree
test_perf_on_all git describe --dirty
test_perf_on_all 'echo >>new && git describe --dirty'
test_perf_on_all git diff-files
test_perf_on_all git diff-files -- $SPARSE_CONE/a
test_perf_on_all git diff-tree HEAD
test_perf_on_all git diff-tree HEAD -- $SPARSE_CONE/a
test_perf_on_all "git worktree add ../temp && git worktree remove ../temp"
test_perf_on_all git check-attr -a -- $SPARSE_CONE/a
test_perf_on_all 'echo >>a && test_write_lines y | git add -p'
test_perf_on_all 'test_write_lines y y y | git checkout --patch -'
test_perf_on_all 'echo >>a && git add a && test_write_lines y | git reset --patch'
test_done
|
