Mercurial > hg > mercurial-crew-with-dirclash
annotate comparison.txt @ 1803:06e7447c7302
speed up hg log --patch
Changing dodiff to read the manifest/changelog for node1 before calling
repo.update allows us to take advantage of the revlog revision cache.
Before this patch and my previous "speed up hg log --debug" patch, when
using hg log -p to display three revisions (A, B and C), dodiff and
repo.changes would end up reading the manifests in this order:
B A B A C B C B
With both patches, this order becomes:
A A B B B B C C
(This considers only dodiff and repo.changes. I'm not sure how other
parts of hg log enter the picture.)
The speed up will depend on the revisions being displayed. (All
"before" times already have my previous "speed up hg log --debug" patch
applied.)
hg repo (tip = 414e81ae971f). hg log -p
before after
real 0m50.981s 0m45.279s
user 0m47.930s 0m42.560s
sys 0m2.526s 0m2.523s
output size: 6917897 bytes
kernel repo (tip = 9d4e135960ed). hg log -p -l64
before after
real 2m14.995s 1m45.025s
user 2m9.509s 1m33.900s
sys 0m3.663s 0m2.942s
output size: 31497621 bytes
same kernel repo. hg log -p -l64 -r c84c2069592f:0
before after
real 1m48.045s 1m0.076s
user 1m44.094s 0m58.492s
sys 0m2.603s 0m1.103s
output size: 197983 bytes
c84c2069592f was the tip of a 10 day old kernel repo that I had lying
around and was where I first tested this patch. For some weird
coincidence it's also a place where the patch makes a huge difference.
author | Alexis S. L. Carvalho <alexis@cecm.usp.br> |
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date | Sun, 26 Feb 2006 02:26:17 +0100 |
parents | 2073e5a71008 |
children |
rev | line source |
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58
2ab801e0ea9f
A quick set of comparisons between hg, git, and bk
mpm@selenic.com
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diff
changeset
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1 Mercurial git BK (*) |
2ab801e0ea9f
A quick set of comparisons between hg, git, and bk
mpm@selenic.com
parents:
diff
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2 storage revlog delta compressed revisions SCCS weave |
139 | 3 storage naming by filename by revision hash by filename |
58
2ab801e0ea9f
A quick set of comparisons between hg, git, and bk
mpm@selenic.com
parents:
diff
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4 merge file DAGs changeset DAG file DAGs? |
2ab801e0ea9f
A quick set of comparisons between hg, git, and bk
mpm@selenic.com
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5 consistency SHA1 SHA1 CRC |
1308
2073e5a71008
Cleanup of tabs and trailing spaces.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
139
diff
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6 signable? yes yes no |
58
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A quick set of comparisons between hg, git, and bk
mpm@selenic.com
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diff
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7 |
2ab801e0ea9f
A quick set of comparisons between hg, git, and bk
mpm@selenic.com
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diff
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8 retrieve file tip O(1) O(1) O(revs) |
2ab801e0ea9f
A quick set of comparisons between hg, git, and bk
mpm@selenic.com
parents:
diff
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9 add rev O(1) O(1) O(revs) |
2ab801e0ea9f
A quick set of comparisons between hg, git, and bk
mpm@selenic.com
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10 find prev file rev O(1) O(changesets) O(revs) |
139 | 11 annotate file O(revs) O(changesets) O(revs) |
58
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A quick set of comparisons between hg, git, and bk
mpm@selenic.com
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diff
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12 find file changeset O(1) O(changesets) ? |
2ab801e0ea9f
A quick set of comparisons between hg, git, and bk
mpm@selenic.com
parents:
diff
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13 |
2ab801e0ea9f
A quick set of comparisons between hg, git, and bk
mpm@selenic.com
parents:
diff
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14 checkout O(files) O(files) O(revs)? |
2ab801e0ea9f
A quick set of comparisons between hg, git, and bk
mpm@selenic.com
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diff
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15 commit O(changes) O(changes) ? |
2ab801e0ea9f
A quick set of comparisons between hg, git, and bk
mpm@selenic.com
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16 6 patches/s 6 patches/s slow |
2ab801e0ea9f
A quick set of comparisons between hg, git, and bk
mpm@selenic.com
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17 diff working dir O(changes) O(changes) ? |
2ab801e0ea9f
A quick set of comparisons between hg, git, and bk
mpm@selenic.com
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diff
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18 < 1s < 1s ? |
2ab801e0ea9f
A quick set of comparisons between hg, git, and bk
mpm@selenic.com
parents:
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19 tree diff revs O(changes) O(changes) ? |
2ab801e0ea9f
A quick set of comparisons between hg, git, and bk
mpm@selenic.com
parents:
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20 < 1s < 1s ? |
139 | 21 hardlink clone O(files) O(revisions) O(files) |
22 | |
23 find remote csets O(log new) rsync: O(revisions) ? | |
24 git-http: O(changesets) | |
58
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A quick set of comparisons between hg, git, and bk
mpm@selenic.com
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25 pull remote csets O(patch) O(modified files) O(patch) |
139 | 26 |
58
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A quick set of comparisons between hg, git, and bk
mpm@selenic.com
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27 repo growth O(patch) O(revisions) O(patch) |
139 | 28 kernel history 300M 3.5G? 250M? |
58
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A quick set of comparisons between hg, git, and bk
mpm@selenic.com
parents:
diff
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29 lines of code 2500 6500 (+ cogito) ?? |
2ab801e0ea9f
A quick set of comparisons between hg, git, and bk
mpm@selenic.com
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30 |
2ab801e0ea9f
A quick set of comparisons between hg, git, and bk
mpm@selenic.com
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31 * I've never used BK so this is just guesses |