On Fri, 2002-04-12 at 01:47, Martin Pool wrote:
> On 11 Apr 2002, Robert Tiberius Johnson <[EMAIL PROTECTED]> wrote:
> > Also, in section 3.15, you say, "Fetching a series of deltas which
> > update the same area is less efficient than calculating the deltas
> > dir
On Fri, 2002-04-12 at 00:14, Anthony Towns wrote:
> No, I'm not. I'm saying that "the amount of time spent waiting for
> apt-get update" needs to count every apt-get update you run, not just
> the first. So, if over a period of a week, I run it seven times, and you
> run it once, I wait seven times
On Thu, 2002-04-11 at 01:15, Martin Pool wrote:
> There seems to be a thread about rsync and Debian packages every
> couple of months. I've written up a document which tries to cover all
> of the questions and debates. It's pretty informal, but hopefully
> will be useful.
>
> http://rsync.samb
On Wed, 2002-04-10 at 09:46, Erich Schubert wrote:
> What diff options do you use?
> As the diffs are expected to be applied to the correct version, they
> probably shouldn't contain the old data, but the new data only.
Good point. I used diff -ed, so I think this is not including
unnecessary con
On Wed, 2002-04-10 at 04:35, Michael Bramer wrote:
> > Scheme Disk space Bandwidth
> > ---
> > Checksums (bwidth optimal)26K 81K
> > diffs (4 days)32K
On Wed, 2002-04-10 at 02:28, Anthony Towns wrote:
> I think you'll find you're also unfairly weighting this against people
> who do daily updates. If you do an update once a month, it's not as much
> of a bother waiting a while to download the Packages files -- you're
> going to have to wait _much
On Tue, 2002-04-09 at 17:25, Martijn van Oosterhout wrote:
> What you are suggesting is that the server store checksums for precalculated
> blocks on the server. This would be 4 bytes per 1k in the original file or
> so. The transaction proceeds as follows:
>
> 1. Client asks for checksum list off
On Sun, 2002-04-07 at 19:36, Adam Heath wrote:
> 54 days with of Packages(sid/main/i386) gives 900k of xdeltas.
Thanks for the info. I think that keeping 54 days of diffs (or xdeltas)
is unnecessary -- most of the benefit is accrued by keeping only 20 days
or so. But I need real stats on frequen
On Sun, 2002-04-07 at 11:16, Otto Wyss wrote:
> What amazes me is that nobody is able or willing to provide any figures.
> So I guess no provider of an rsync server is interested in this subject
> and therefore it can't be a big problem.
Here are some experiments, and a mathematical analysis of d
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