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comparison.txt
author mpm@selenic.com
Wed, 22 Jun 2005 11:21:04 -0800
changeset 431 dfc44f3f587c
parent 139 17e66e1a0382
child 1308 2073e5a71008
permissions -rw-r--r--
convert-repo fixups -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 convert-repo fixups - - deal with octopus merge uniqueify parent list add a series of identical commits with "(octopus merge fixup)" - - add "committer" field from git to the commit message manifest hash: e33d802afe35edecfc5cc9b567def6db2b0cb885 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (GNU/Linux) iD8DBQFCubogywK+sNU5EO8RAkWgAJ9OVHeumKd/nRIfvS/nQ9eSbORqNgCgpBIE Dza0L59OSJHHmm3Dbp7ygds= =OEvJ -----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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