view comparison.txt @ 275:61d45b0ba8fb

various merge improvements -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 various merge improvements add -C flag: force update and overwrite local changes add -m flag: allow merges with conflicts we no longer do merge by default and we print a warning message when the merge fails fix bug in printing merge failure message fix bug diffing files in 'm' state manifest hash: 75545a6db45d1e371082343d01c9f177df0f9db3 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (GNU/Linux) iD8DBQFCpm6tywK+sNU5EO8RAvb+AJ0euC3YkUYA944hds3ooPxbw6NpVwCfc1dj TiNsPIds560S5jgw44eWNto= =GPXN -----END PGP SIGNATURE-----
author mpm@selenic.com
date Tue, 07 Jun 2005 20:06:05 -0800
parents 17e66e1a0382
children 2073e5a71008
line wrap: on
line source

                    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