mirror of
https://github.com/facebook/sapling.git
synced 2024-10-07 23:38:50 +03:00
667d10975b
Revlog can now be configured to store full snapshot only. This is used on the changelog. However, the changegroup packing was still recomputing deltas to be sent over the wire. We now just reuse the full snapshot directly in this case, skipping delta computation. This provides use with a large speed up(-30%): # perfchangegroupchangelog on mercurial ! wall 2.010326 comb 2.020000 user 2.000000 sys 0.020000 (best of 5) ! wall 1.382039 comb 1.380000 user 1.370000 sys 0.010000 (best of 8) # perfchangegroupchangelog on pypy ! wall 5.792589 comb 5.780000 user 5.780000 sys 0.000000 (best of 3) ! wall 3.911158 comb 3.920000 user 3.900000 sys 0.020000 (best of 3) # perfchangegroupchangelog on mozilla central ! wall 20.683727 comb 20.680000 user 20.630000 sys 0.050000 (best of 3) ! wall 14.190204 comb 14.190000 user 14.150000 sys 0.040000 (best of 3) Many tests have to be updated because of the change in bundle content. All theses update have been verified. Because diffing changelog was not very valuable, the resulting bundle have similar size (often a bit smaller): # full bundle of mozilla central with delta: 1142740533B without delta: 1142173300B So this is a win all over the board.
77 lines
3.8 KiB
Perl
77 lines
3.8 KiB
Perl
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Create a test repository:
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$ hg init repo
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$ cd repo
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$ touch a ; hg add a ; hg ci -ma
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$ touch b ; hg add b ; hg ci -mb
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$ touch c ; hg add c ; hg ci -mc
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$ hg bundle --base 0 --rev tip bundle.hg -v --type v1
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2 changesets found
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uncompressed size of bundle content:
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332 (changelog)
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282 (manifests)
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93 b
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93 c
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$ hg bundle --base 0 --rev tip bundle2.hg -v --type none-v2
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2 changesets found
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uncompressed size of bundle content:
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344 (changelog)
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322 (manifests)
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113 b
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113 c
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Terse output:
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$ hg debugbundle bundle.hg
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0e067c57feba1a5694ca4844f05588bb1bf82342
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991a3460af53952d10ec8a295d3d2cc2e5fa9690
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Terse output:
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$ hg debugbundle bundle2.hg
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Stream params: {}
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changegroup -- "sortdict([('version', '02'), ('nbchanges', '2')])"
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0e067c57feba1a5694ca4844f05588bb1bf82342
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991a3460af53952d10ec8a295d3d2cc2e5fa9690
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Verbose output:
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$ hg debugbundle --all bundle.hg
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format: id, p1, p2, cset, delta base, len(delta)
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changelog
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0e067c57feba1a5694ca4844f05588bb1bf82342 3903775176ed42b1458a6281db4a0ccf4d9f287a 0000000000000000000000000000000000000000 0e067c57feba1a5694ca4844f05588bb1bf82342 3903775176ed42b1458a6281db4a0ccf4d9f287a 80
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991a3460af53952d10ec8a295d3d2cc2e5fa9690 0e067c57feba1a5694ca4844f05588bb1bf82342 0000000000000000000000000000000000000000 991a3460af53952d10ec8a295d3d2cc2e5fa9690 0e067c57feba1a5694ca4844f05588bb1bf82342 80
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manifest
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686dbf0aeca417636fa26a9121c681eabbb15a20 8515d4bfda768e04af4c13a69a72e28c7effbea7 0000000000000000000000000000000000000000 0e067c57feba1a5694ca4844f05588bb1bf82342 8515d4bfda768e04af4c13a69a72e28c7effbea7 55
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ae25a31b30b3490a981e7b96a3238cc69583fda1 686dbf0aeca417636fa26a9121c681eabbb15a20 0000000000000000000000000000000000000000 991a3460af53952d10ec8a295d3d2cc2e5fa9690 686dbf0aeca417636fa26a9121c681eabbb15a20 55
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b
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b80de5d138758541c5f05265ad144ab9fa86d1db 0000000000000000000000000000000000000000 0000000000000000000000000000000000000000 0e067c57feba1a5694ca4844f05588bb1bf82342 0000000000000000000000000000000000000000 0
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c
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b80de5d138758541c5f05265ad144ab9fa86d1db 0000000000000000000000000000000000000000 0000000000000000000000000000000000000000 991a3460af53952d10ec8a295d3d2cc2e5fa9690 0000000000000000000000000000000000000000 0
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$ hg debugbundle --all bundle2.hg
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Stream params: {}
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changegroup -- "sortdict([('version', '02'), ('nbchanges', '2')])"
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format: id, p1, p2, cset, delta base, len(delta)
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changelog
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0e067c57feba1a5694ca4844f05588bb1bf82342 3903775176ed42b1458a6281db4a0ccf4d9f287a 0000000000000000000000000000000000000000 0e067c57feba1a5694ca4844f05588bb1bf82342 0000000000000000000000000000000000000000 66
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991a3460af53952d10ec8a295d3d2cc2e5fa9690 0e067c57feba1a5694ca4844f05588bb1bf82342 0000000000000000000000000000000000000000 991a3460af53952d10ec8a295d3d2cc2e5fa9690 0000000000000000000000000000000000000000 66
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manifest
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686dbf0aeca417636fa26a9121c681eabbb15a20 8515d4bfda768e04af4c13a69a72e28c7effbea7 0000000000000000000000000000000000000000 0e067c57feba1a5694ca4844f05588bb1bf82342 8515d4bfda768e04af4c13a69a72e28c7effbea7 55
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ae25a31b30b3490a981e7b96a3238cc69583fda1 686dbf0aeca417636fa26a9121c681eabbb15a20 0000000000000000000000000000000000000000 991a3460af53952d10ec8a295d3d2cc2e5fa9690 686dbf0aeca417636fa26a9121c681eabbb15a20 55
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b
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b80de5d138758541c5f05265ad144ab9fa86d1db 0000000000000000000000000000000000000000 0000000000000000000000000000000000000000 0e067c57feba1a5694ca4844f05588bb1bf82342 0000000000000000000000000000000000000000 0
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c
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b80de5d138758541c5f05265ad144ab9fa86d1db 0000000000000000000000000000000000000000 0000000000000000000000000000000000000000 991a3460af53952d10ec8a295d3d2cc2e5fa9690 0000000000000000000000000000000000000000 0
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$ cd ..
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