Re: [PATCH] Change 'Deltifying objects' to 'Delta compressing objects'
- From
Sam Vilain <sam@vilain.net>
- Date
- Oct 19, 2007, 02:55 UTC
- Message-ID
- <47181CA2.5010605@vilain.net>
- In-Reply-To
- <20071019023645.GC8298@coredump.intra.peff.net>
Jeff King wrote:
Show 10 quoted lines
> On Fri, Oct 19, 2007 at 12:24:44PM +1000, David Symonds wrote: > >> Forward thinking, that's probably most sensible, since git 4.7 might >> not use delta compression, but maybe wavelet compression, or other >> scheme entirely. Using deltas is an implementation detail, after all. > > Git already uses two types of compression (zlib on all objects, deltas > between objects in packfiles). So just saying "compressing" is actually > a bit ambiguous, and I think noting that what we are _actually_ doing > right now is delta compression is worthwhile.
True. But then, zlib compression is also delta compressing and huffman coding. Git's delta compression is quite similar; it just uses a larger window than the sliding 64k gzip one.
Sam.`