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| author | Shuqi Liang <cheskaqiqi@gmail.com> | 2023-04-04 03:35:39 +0300 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2023-04-04 22:50:54 +0300 |
| commit | 1a65b41b38a669f3d6e54edec38e6b8506ef6ee1 (patch) | |
| tree | db74d6f1021741ac4a2aab09f567843ec83c6a84 /t/perf | |
| parent | 768bb238c4843bf52847773a621de4dffa6b9ab5 (diff) | |
write-tree: integrate with sparse index
Update 'git write-tree' to allow using the sparse-index in memory
without expanding to a full one.
The recursive algorithm for update_one() was already updated in 2de37c5
(cache-tree: integrate with sparse directory entries, 2021-03-03) to
handle sparse directory entries in the index. Hence we can just set the
requires-full-index to false for "write-tree".
The `p2000` tests demonstrate a ~96% execution time reduction for 'git
write-tree' using a sparse index:
Test before after
-----------------------------------------------------------------
2000.78: git write-tree (full-v3) 0.34 0.33 -2.9%
2000.79: git write-tree (full-v4) 0.32 0.30 -6.3%
2000.80: git write-tree (sparse-v3) 0.47 0.02 -95.8%
2000.81: git write-tree (sparse-v4) 0.45 0.02 -95.6%
Signed-off-by: Shuqi Liang <cheskaqiqi@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 't/perf')
| -rwxr-xr-x | t/perf/p2000-sparse-operations.sh | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/t/perf/p2000-sparse-operations.sh b/t/perf/p2000-sparse-operations.sh index 3242cfe91a..5fe6bf3ddd 100755 --- a/t/perf/p2000-sparse-operations.sh +++ b/t/perf/p2000-sparse-operations.sh @@ -125,5 +125,6 @@ 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 --sparse bogus -- "f2/f1/f1/*" +test_perf_on_all git write-tree test_done |