Alexis S. L. Carvalho <alexis@cecm.usp.br> [Thu, 04 Oct 2007 23:21:37 -0300] rev 5373
convert: pass the order of the revmapfile to the converter_source
The entries in this file are supposed to be topologically sorted and
this may be useful for a converter_source.
Matt Mackall <mpm@selenic.com> [Thu, 04 Oct 2007 19:47:22 -0500] rev 5372
Merge with crew
Matt Mackall <mpm@selenic.com> [Thu, 04 Oct 2007 19:44:37 -0500] rev 5371
merge: add debug diagnostics for findcopies
Matt Mackall <mpm@selenic.com> [Wed, 03 Oct 2007 17:17:28 -0500] rev 5370
changegroup: avoid large copies
- handle chunk headers separately rather than prepending them to
(potentially large) chunks
- break large chunks into 1M pieces for compression
- don't prepend file metadata onto (potentially large) file data
Matt Mackall <mpm@selenic.com> [Wed, 03 Oct 2007 17:17:27 -0500] rev 5369
revlog: generate trivial deltas against null revision
To avoid extra memory usage and performance issues with large files,
generate a trivial delta header for deltas against the null revision
rather than calling the usual delta generator.
We append the delta header to meta rather than prepending it to data
to avoid a large allocate and copy.
Matt Mackall <mpm@selenic.com> [Wed, 03 Oct 2007 16:50:32 -0500] rev 5368
Merge with crew
Matt Mackall <mpm@selenic.com> [Tue, 02 Oct 2007 18:04:18 -0500] rev 5367
Merge with crew
Matt Mackall <mpm@selenic.com> [Thu, 27 Sep 2007 23:59:18 -0500] rev 5366
bdiff: switch to lyhash
lyhash is a very simple and fast hash function that had the fewest
hash collisions on a 3.9M line text corpus and 190k line binary corpus
and should have significantly fewer collisions than the current hash
function.
Matt Mackall <mpm@selenic.com> [Thu, 27 Sep 2007 23:59:02 -0500] rev 5365
bdiff: use INT_MAX to avoid some inner loop comparisons
Christoph Spiel <cspiel@freenet.de> [Thu, 27 Sep 2007 23:58:54 -0500] rev 5364
bdiff: simple splitlines optimization
Christoph Spiel <cspiel@freenet.de> [Thu, 27 Sep 2007 23:57:57 -0500] rev 5363
I have spotted the biggest bottleneck in "bdiff.c". Actually it was
pretty easy to find after I recompiled the python interpreter and
mercurial for profiling.
In "bdiff.c" function "equatelines" allocates the minimum hash table
size, which can lead to tons of collisions. I introduced an
"overcommit" factor of 16, this is, I allocate 16 times more memory
than the minimum value. Overcommiting 128 times does not improve the
performance over the 16-times case.
Patrick Mezard <pmezard@gmail.com> [Thu, 04 Oct 2007 14:26:34 +0200] rev 5362
Merge with crew-stable
Thomas Arendsen Hein <thomas@intevation.de> [Thu, 04 Oct 2007 14:23:28 +0200] rev 5361
test-convert-git: support older git client (1.4.4.4)
Patrick Mezard <pmezard@gmail.com> [Wed, 03 Oct 2007 21:08:37 +0200] rev 5360
Merge with crew-stable
Christian Ebert <blacktrash@gmx.net> [Wed, 03 Oct 2007 21:01:47 +0200] rev 5359
test-convert-cvs: handle older cvs client
Bryan O'Sullivan <bos@serpentine.com> [Tue, 02 Oct 2007 21:01:00 -0700] rev 5358
Merge with crew