view comparison.txt @ 2096:f5ebe964c6be

Ignore EPIPE in pipefilter This hides the following traceback (there's a race condition involved, so you may have to try a few times to hit it): $ hg sign --key key-that-does-not-exist Signing 2062:4bad92f4ea65 gpg: skipped "key-that-does-not-exist": secret key not available gpg: signing failed: secret key not available Exception in thread Thread-1: Traceback (most recent call last): File "threading.py", line 442, in __bootstrap self.run() File "threading.py", line 422, in run self.__target(*self.__args, **self.__kwargs) File "mercurial/util.py", line 24, in writer pin.close() IOError: [Errno 32] Broken pipe abort: Error while signing
author Alexis S. L. Carvalho <alexis@cecm.usp.br>
date Wed, 19 Apr 2006 11:41:25 -0700
parents 2073e5a71008
children
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