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comparison.txt
author mpm@selenic.com
Tue, 31 May 2005 21:33:27 -0800
changeset 203 0b486b5e0796
parent 139 17e66e1a0382
child 1308 2073e5a71008
permissions -rw-r--r--
hg rawcommit command -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 hg rawcommit command From: Christopher Li <hg@chrisli.org> This allows direct access to the commit command, primarily for importing from other SCMs. manifest hash: bea39fa8207582c9fa7ba0904721eb5113c61cf4 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (GNU/Linux) iD8DBQFCnUinywK+sNU5EO8RAhWqAJ9PiafRbfEIA3VsO07BbGZr5adNvgCfT2k7 blYTdkrIiRzzCxn6yPq8Yu4= =o8k0 -----END PGP SIGNATURE-----

                    Mercurial      git                     BK (*)
storage             revlog delta   compressed revisions    SCCS weave
storage naming      by filename    by revision hash        by filename
merge               file DAGs      changeset DAG           file DAGs?
consistency         SHA1           SHA1                    CRC
signable?           yes            yes                     no       

retrieve file tip   O(1)           O(1)                    O(revs)
add rev             O(1)           O(1)                    O(revs)
find prev file rev  O(1)           O(changesets)           O(revs)
annotate file       O(revs)        O(changesets)           O(revs)
find file changeset O(1)           O(changesets)           ?

checkout            O(files)       O(files)                O(revs)?
commit              O(changes)     O(changes)              ?
                    6 patches/s    6 patches/s             slow
diff working dir    O(changes)     O(changes)              ?
                    < 1s           < 1s                    ?
tree diff revs      O(changes)     O(changes)              ?
                    < 1s           < 1s                    ?
hardlink clone      O(files)       O(revisions)            O(files)

find remote csets   O(log new)     rsync: O(revisions)     ?
                                   git-http: O(changesets)
pull remote csets   O(patch)       O(modified files)       O(patch)

repo growth         O(patch)       O(revisions)            O(patch)
 kernel history     300M           3.5G?                   250M?
lines of code       2500           6500 (+ cogito)         ??

* I've never used BK so this is just guesses
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