comparison.txt
author Alexis S. L. Carvalho <alexis@cecm.usp.br>
Fri, 07 Jul 2006 14:33:51 -0300
changeset 2582 276de216d2c5
parent 1308 2073e5a71008
permissions -rw-r--r--
Respect "Connection: close" headers sent by HTTP clients. A HTTP client can indicate that it doesn't support (or doesn't want) persistent connections by sending this header. This not only makes the server more compliant with the RFC, but also reduces the run time of test-http-proxy when run with python 2.3 from ~125s to ~5s (it doesn't affect it with python 2.4, which was already ~5s).
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2ab801e0ea9f A quick set of comparisons between hg, git, and bk
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                    Mercurial      git                     BK (*)
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storage             revlog delta   compressed revisions    SCCS weave
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storage naming      by filename    by revision hash        by filename
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merge               file DAGs      changeset DAG           file DAGs?
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consistency         SHA1           SHA1                    CRC
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signable?           yes            yes                     no
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retrieve file tip   O(1)           O(1)                    O(revs)
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add rev             O(1)           O(1)                    O(revs)
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find prev file rev  O(1)           O(changesets)           O(revs)
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annotate file       O(revs)        O(changesets)           O(revs)
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find file changeset O(1)           O(changesets)           ?
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checkout            O(files)       O(files)                O(revs)?
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commit              O(changes)     O(changes)              ?
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                    6 patches/s    6 patches/s             slow
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diff working dir    O(changes)     O(changes)              ?
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                    < 1s           < 1s                    ?
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tree diff revs      O(changes)     O(changes)              ?
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                    < 1s           < 1s                    ?
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hardlink clone      O(files)       O(revisions)            O(files)
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find remote csets   O(log new)     rsync: O(revisions)     ?
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                                   git-http: O(changesets)
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pull remote csets   O(patch)       O(modified files)       O(patch)
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repo growth         O(patch)       O(revisions)            O(patch)
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 kernel history     300M           3.5G?                   250M?
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lines of code       2500           6500 (+ cogito)         ??
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* I've never used BK so this is just guesses