[haiku-development] Re: Q: Modifying InstallSourceArchive behavior

  • From: "Axel Dörfler" <axeld@xxxxxxxxxxxxxxxx>
  • To: haiku-development@xxxxxxxxxxxxx
  • Date: Tue, 27 Apr 2010 16:52:03 +0200

Ingo Weinhold <ingo_weinhold@xxxxxx> wrote:
> On 2010-04-27 at 12:34:54 [+0200], Axel Dörfler <axeld@xxxxxxxxxxxxxxxx>
> > wrote:
> > Ingo Weinhold <ingo_weinhold@xxxxxx> wrote:
> > > Do we already have estimates what the sources will weigh
> > > altogether?
> > > If it
> > > isn't way beyond the 700 MB mark, we could get away with kicking
> > > some
> > > stuff
> > > off the image. Also, switching to 1 KB BFS block size could save
> > > some
> > > MB.
> > But this would hurt performance even more for a CD without the
> > IOCache.
> Even then, if my assumption is correct that for most files all
> attributes
> would fit even in the small data section of 1 KB blocks, there'll be
> no
> performance difference in those cases. Due to the greater data density
> we
> might even reduce seeking overhead.

Not sure if I understand you. The problem is that CDs actually have a
2048 byte block size natively, so unless you cache things, you cause
more seeks with a 1K block size.

Bye,
   Axel.


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