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14527b30 BP |
1 | #!/bin/sh |
2 | ||
3 | test_description="Test core.fsmonitor" | |
4 | ||
5 | . ./perf-lib.sh | |
6 | ||
7 | # | |
8 | # Performance test for the fsmonitor feature which enables git to talk to a | |
9 | # file system change monitor and avoid having to scan the working directory | |
10 | # for new or modified files. | |
11 | # | |
12 | # By default, the performance test will utilize the Watchman file system | |
13 | # monitor if it is installed. If Watchman is not installed, it will use a | |
14 | # dummy integration script that does not report any new or modified files. | |
15 | # The dummy script has very little overhead which provides optimistic results. | |
16 | # | |
17 | # The performance test will also use the untracked cache feature if it is | |
18 | # available as fsmonitor uses it to speed up scanning for untracked files. | |
19 | # | |
20 | # There are 3 environment variables that can be used to alter the default | |
21 | # behavior of the performance test: | |
22 | # | |
23 | # GIT_PERF_7519_UNTRACKED_CACHE: used to configure core.untrackedCache | |
24 | # GIT_PERF_7519_SPLIT_INDEX: used to configure core.splitIndex | |
a948864a NK |
25 | # GIT_PERF_7519_FSMONITOR: used to configure core.fsMonitor. May be an |
26 | # absolute path to an integration. May be a space delimited list of | |
27 | # absolute paths to integrations. | |
14527b30 BP |
28 | # |
29 | # The big win for using fsmonitor is the elimination of the need to scan the | |
30 | # working directory looking for changed and untracked files. If the file | |
31 | # information is all cached in RAM, the benefits are reduced. | |
32 | # | |
33 | # GIT_PERF_7519_DROP_CACHE: if set, the OS caches are dropped between tests | |
34 | # | |
35 | ||
36 | test_perf_large_repo | |
37 | test_checkout_worktree | |
38 | ||
39 | test_lazy_prereq UNTRACKED_CACHE ' | |
40 | { git update-index --test-untracked-cache; ret=$?; } && | |
41 | test $ret -ne 1 | |
42 | ' | |
43 | ||
44 | test_lazy_prereq WATCHMAN ' | |
b4f61b7f | 45 | command -v watchman |
14527b30 BP |
46 | ' |
47 | ||
48 | if test_have_prereq WATCHMAN | |
49 | then | |
50 | # Convert unix style paths to escaped Windows style paths for Watchman | |
51 | case "$(uname -s)" in | |
52 | MSYS_NT*) | |
53 | GIT_WORK_TREE="$(cygpath -aw "$PWD" | sed 's,\\,/,g')" | |
54 | ;; | |
55 | *) | |
56 | GIT_WORK_TREE="$PWD" | |
57 | ;; | |
58 | esac | |
59 | fi | |
60 | ||
61 | if test -n "$GIT_PERF_7519_DROP_CACHE" | |
62 | then | |
63 | # When using GIT_PERF_7519_DROP_CACHE, GIT_PERF_REPEAT_COUNT must be 1 to | |
64 | # generate valid results. Otherwise the caching that happens for the nth | |
65 | # run will negate the validity of the comparisons. | |
66 | if test "$GIT_PERF_REPEAT_COUNT" -ne 1 | |
67 | then | |
68 | echo "warning: Setting GIT_PERF_REPEAT_COUNT=1" >&2 | |
69 | GIT_PERF_REPEAT_COUNT=1 | |
70 | fi | |
71 | fi | |
72 | ||
bb7cc7e7 | 73 | test_expect_success "one time repo setup" ' |
14527b30 BP |
74 | # set untrackedCache depending on the environment |
75 | if test -n "$GIT_PERF_7519_UNTRACKED_CACHE" | |
76 | then | |
77 | git config core.untrackedCache "$GIT_PERF_7519_UNTRACKED_CACHE" | |
78 | else | |
79 | if test_have_prereq UNTRACKED_CACHE | |
80 | then | |
81 | git config core.untrackedCache true | |
82 | else | |
83 | git config core.untrackedCache false | |
84 | fi | |
85 | fi && | |
86 | ||
87 | # set core.splitindex depending on the environment | |
88 | if test -n "$GIT_PERF_7519_SPLIT_INDEX" | |
89 | then | |
90 | git config core.splitIndex "$GIT_PERF_7519_SPLIT_INDEX" | |
91 | fi && | |
92 | ||
bb7cc7e7 NK |
93 | mkdir 1_file 10_files 100_files 1000_files 10000_files && |
94 | for i in $(test_seq 1 10); do touch 10_files/$i; done && | |
95 | for i in $(test_seq 1 100); do touch 100_files/$i; done && | |
96 | for i in $(test_seq 1 1000); do touch 1000_files/$i; done && | |
97 | for i in $(test_seq 1 10000); do touch 10000_files/$i; done && | |
98 | git add 1_file 10_files 100_files 1000_files 10000_files && | |
78ff8b32 | 99 | git commit -qm "Add files" && |
0288b932 NK |
100 | |
101 | # If Watchman exists, watch the work tree and attempt a query. | |
102 | if test_have_prereq WATCHMAN; then | |
103 | watchman watch "$GIT_WORK_TREE" && | |
104 | watchman watch-list | grep -q -F "$GIT_WORK_TREE" | |
105 | fi | |
bb7cc7e7 NK |
106 | ' |
107 | ||
a05b71ab | 108 | setup_for_fsmonitor() { |
14527b30 | 109 | # set INTEGRATION_SCRIPT depending on the environment |
a948864a | 110 | if test -n "$INTEGRATION_PATH" |
14527b30 | 111 | then |
a948864a | 112 | INTEGRATION_SCRIPT="$INTEGRATION_PATH" |
14527b30 BP |
113 | else |
114 | # | |
115 | # Choose integration script based on existence of Watchman. | |
0288b932 | 116 | # Fall back to an empty integration script. |
14527b30 BP |
117 | # |
118 | mkdir .git/hooks && | |
119 | if test_have_prereq WATCHMAN | |
120 | then | |
121 | INTEGRATION_SCRIPT=".git/hooks/fsmonitor-watchman" && | |
0288b932 | 122 | cp "$TEST_DIRECTORY/../templates/hooks--fsmonitor-watchman.sample" "$INTEGRATION_SCRIPT" |
14527b30 BP |
123 | else |
124 | INTEGRATION_SCRIPT=".git/hooks/fsmonitor-empty" && | |
125 | write_script "$INTEGRATION_SCRIPT"<<-\EOF | |
126 | EOF | |
127 | fi | |
128 | fi && | |
129 | ||
130 | git config core.fsmonitor "$INTEGRATION_SCRIPT" && | |
33226af4 NK |
131 | git update-index --fsmonitor 2>error && |
132 | cat error && | |
6cba4234 | 133 | [ ! -s error ] # ensure no silent error |
a05b71ab | 134 | } |
14527b30 | 135 | |
471b1157 NK |
136 | test_perf_w_drop_caches () { |
137 | if test -n "$GIT_PERF_7519_DROP_CACHE"; then | |
138 | test-tool drop-caches | |
139 | fi | |
14527b30 | 140 | |
471b1157 NK |
141 | test_perf "$@" |
142 | } | |
14527b30 | 143 | |
471b1157 | 144 | test_fsmonitor_suite() { |
dd79c167 NK |
145 | if test -n "$INTEGRATION_SCRIPT"; then |
146 | DESC="fsmonitor=$(basename $INTEGRATION_SCRIPT)" | |
147 | else | |
148 | DESC="fsmonitor=disabled" | |
149 | fi | |
3d53ebcd | 150 | |
6cba4234 NK |
151 | test_expect_success "test_initialization" ' |
152 | git reset --hard && | |
153 | git status # Warm caches | |
154 | ' | |
155 | ||
3d53ebcd | 156 | test_perf_w_drop_caches "status ($DESC)" ' |
471b1157 NK |
157 | git status |
158 | ' | |
14527b30 | 159 | |
3d53ebcd | 160 | test_perf_w_drop_caches "status -uno ($DESC)" ' |
471b1157 NK |
161 | git status -uno |
162 | ' | |
14527b30 | 163 | |
3d53ebcd | 164 | test_perf_w_drop_caches "status -uall ($DESC)" ' |
471b1157 NK |
165 | git status -uall |
166 | ' | |
14527b30 | 167 | |
1c6833c8 NK |
168 | test_perf_w_drop_caches "status (dirty) ($DESC)" ' |
169 | git ls-files | head -100000 | xargs -d "\n" touch -h && | |
170 | git status | |
171 | ' | |
172 | ||
3d53ebcd | 173 | test_perf_w_drop_caches "diff ($DESC)" ' |
471b1157 NK |
174 | git diff |
175 | ' | |
89afd5f5 | 176 | |
3d53ebcd | 177 | test_perf_w_drop_caches "diff -- 0_files ($DESC)" ' |
471b1157 NK |
178 | git diff -- 1_file |
179 | ' | |
89afd5f5 | 180 | |
3d53ebcd | 181 | test_perf_w_drop_caches "diff -- 10_files ($DESC)" ' |
471b1157 NK |
182 | git diff -- 10_files |
183 | ' | |
89afd5f5 | 184 | |
3d53ebcd | 185 | test_perf_w_drop_caches "diff -- 100_files ($DESC)" ' |
471b1157 NK |
186 | git diff -- 100_files |
187 | ' | |
89afd5f5 | 188 | |
3d53ebcd | 189 | test_perf_w_drop_caches "diff -- 1000_files ($DESC)" ' |
471b1157 NK |
190 | git diff -- 1000_files |
191 | ' | |
89afd5f5 | 192 | |
3d53ebcd | 193 | test_perf_w_drop_caches "diff -- 10000_files ($DESC)" ' |
471b1157 NK |
194 | git diff -- 10000_files |
195 | ' | |
2bfa953e | 196 | |
3d53ebcd | 197 | test_perf_w_drop_caches "add ($DESC)" ' |
2bfa953e NK |
198 | git add --all |
199 | ' | |
471b1157 | 200 | } |
89afd5f5 | 201 | |
a948864a NK |
202 | if test -n "$GIT_PERF_7519_FSMONITOR"; then |
203 | for INTEGRATION_PATH in $GIT_PERF_7519_FSMONITOR; do | |
204 | test_expect_success "setup for fsmonitor $INTEGRATION_PATH" 'setup_for_fsmonitor' | |
205 | test_fsmonitor_suite | |
206 | done | |
207 | else | |
208 | test_expect_success "setup for fsmonitor" 'setup_for_fsmonitor' | |
209 | test_fsmonitor_suite | |
210 | fi | |
89afd5f5 | 211 | |
14527b30 BP |
212 | test_expect_success "setup without fsmonitor" ' |
213 | unset INTEGRATION_SCRIPT && | |
214 | git config --unset core.fsmonitor && | |
215 | git update-index --no-fsmonitor | |
216 | ' | |
217 | ||
471b1157 | 218 | test_fsmonitor_suite |
89afd5f5 | 219 | |
14527b30 BP |
220 | if test_have_prereq WATCHMAN |
221 | then | |
222 | watchman watch-del "$GIT_WORK_TREE" >/dev/null 2>&1 && | |
223 | ||
224 | # Work around Watchman bug on Windows where it holds on to handles | |
225 | # preventing the removal of the trash directory | |
226 | watchman shutdown-server >/dev/null 2>&1 | |
227 | fi | |
228 | ||
229 | test_done |