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| author | Taylor Blau <me@ttaylorr.com> | 2020-05-05 02:12:35 +0300 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2020-05-05 07:57:58 +0300 |
| commit | b0a8d4820baa9966511ea9bd8c8b09dab087475f (patch) | |
| tree | 33983aff8435137b78930fccf5a546fd6a6da097 /t/t6113-rev-list-bitmap-filters.sh | |
| parent | 856e12c18a4616bbfbdfd1777577c1182b148519 (diff) | |
pack-bitmap.c: support 'tree:0' filtering
In the previous patch, we made it easy to define other filters that
exclude all objects of a certain type. Use that in order to implement
bitmap-level filtering for the '--filter=tree:<n>' filter when 'n' is
equal to 0.
The general case is not helped by bitmaps, since for values of 'n > 0',
the object filtering machinery requires a full-blown tree traversal in
order to determine the depth of a given tree. Caching this is
non-obvious, too, since the same tree object can have a different depth
depending on the context (e.g., a tree was moved up in the directory
hierarchy between two commits).
But, the 'n = 0' case can be helped, and this patch does so. Running
p5310.11 in this tree and on master with the kernel, we can see that
this case is helped substantially:
Test master this tree
--------------------------------------------------------------------------------
5310.11: rev-list count with tree:0 10.68(10.39+0.27) 0.06(0.04+0.01) -99.4%
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 't/t6113-rev-list-bitmap-filters.sh')
| -rwxr-xr-x | t/t6113-rev-list-bitmap-filters.sh | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/t/t6113-rev-list-bitmap-filters.sh b/t/t6113-rev-list-bitmap-filters.sh index 145603f124..2b551e6fd0 100755 --- a/t/t6113-rev-list-bitmap-filters.sh +++ b/t/t6113-rev-list-bitmap-filters.sh @@ -53,4 +53,25 @@ test_expect_success 'blob:limit filter with specified blob' ' test_bitmap_traversal expect actual ' +test_expect_success 'tree:0 filter' ' + git rev-list --objects --filter=tree:0 HEAD >expect && + git rev-list --use-bitmap-index \ + --objects --filter=tree:0 HEAD >actual && + test_bitmap_traversal expect actual +' + +test_expect_success 'tree:0 filter with specified blob, tree' ' + git rev-list --objects --filter=tree:0 HEAD HEAD:two.t >expect && + git rev-list --use-bitmap-index \ + --objects --filter=tree:0 HEAD HEAD:two.t >actual && + test_bitmap_traversal expect actual +' + +test_expect_success 'tree:1 filter' ' + git rev-list --objects --filter=tree:1 HEAD >expect && + git rev-list --use-bitmap-index \ + --objects --filter=tree:1 HEAD >actual && + test_cmp expect actual +' + test_done |