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Re: [Gnu-arch-users] Re: a brief note on "delta compression"

From: Aaron Bentley
Subject: Re: [Gnu-arch-users] Re: a brief note on "delta compression"
Date: Tue, 04 May 2004 01:25:30 -0400
User-agent: Mozilla Thunderbird 0.5 (X11/20040306)

Tom Lord wrote:
    > From: Miles Bader <address@hidden>

    > On Mon, May 03, 2004 at 06:15:36PM -0400, Stefan Monnier wrote:
    > > Indeed, the problems seems to be the time it takes to apply each 
    > > There is no doubt in my mind that this can be sped up by an order of
    > > magnitude.  IIUC it is currently slow because it does a full inventory 
    > > each and every changeset

    > Actually from my point of view, the big slowdown is that it (apparently)
    > doesn't do any sort of pipelining, so fetching a bunch of changesets (plus
    > various signing-checking stuff) gets absolutely murdered by latency.

    > Oh, BTW, I'm not using a local mirror.

Yeah, it's that last bit that's killing you.

Also, are you using greedy libraries? The library-add code favours patches over cacherevs, while the standard build_revision uses cacherevs whenever it encounters them.


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