Comment 10 for bug 343218

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John A Meinel (jameinel) wrote : Re: [Bug 343218] Re: Export with lightweight checkouts takes a lot of time

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pva wrote:
> Heh, this issue again is discussed in gentoo-dev:
> http://archives.gentoo.org/gentoo-dev/msg_69e16fcf1b760849695165de80e22b1d.xml
>
> Site:
> "In my test (GNU Emacs BZR repo, 2 Mbit/s connection) bzr export took 54 minutes, whereas the initial checkout took only 11 minutes."
>
> This is really weird.
>

It isn't that weird. We focused on checkout performance because it is
something we do all the time. We haven't tried to optimize export
performance, because it is not nearly as frequent.

If you are adding to this exporting over a network connection, I'm
pretty sure the big factor is that we are requesting file contents
one-at-a-time rather than all-at-once. I don't think it would be hard to
address for someone who cared.

John
=:->

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