Convert to parentdelta

[Matt Mackall]

On Sun, 2010-08-22 at 18:45 +0200, Dan Villiom Podlaski Christiansen
wrote:
> On 22 Aug 2010, at 16:39, Matt Mackall wrote:
> 
> > On Sun, 2010-08-22 at 13:41 +0200, Dan Villiom Podlaski Christiansen
> > wrote:
> >> The resulting 00manifest.d sizes:
> >>
> >> normal:     1342MB
> >> parentdelta: 161MB
> >> compressed:  161MB
> >> shrunk:       31MB
> >> compressed8:  19MB
> >
> > compressed+shrunk might be interesting too.
> 
> > Can you send us results for manifest compression between 2x and 8x?
> 
> Sure, here's an updated listing:
> 
> normal:            1342MB
> parentdelta:        161MB
> compressed2:        161MB
> compressed3:         49MB
> compressed4:         32MB
> shrunk:              31MB
> compressed2-shrunk:  31MB
> compressed4-shrunk:  29MB
> compressed6:         24MB
> shrunk-compressed2:  22MB
> compressed8:         19MB

Thanks. Remembered this morning that there's a piece of parentdelta
missing still that would probably be helpful here: choosing the best
delta between p1 and p2. That should make the 2x parentdelta numbers
more comparable to (and hopefully better than) shrunk.

-- 
Mathematics is the supreme nostalgia of our time.