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Re: mod_dav_svn performance

From: Erik Huelsmann <ehuels_at_gmail.com>
Date: Mon, 25 Feb 2008 11:04:14 +0100

On 2/25/08, Chris Rose <chris.rose_at_messagingdirect.com> wrote:
> I suppose this is true, but the wide range of client environments in which
> I've seen this suggests something else. Probably network. And, I assume,
> svn only sends one copy over the wire :)

I'm sorry, but you have 5 people telling you it's *not* the network
and server, it's the working copy. I'm one of the people writing the
working copy code and I'm telling you it's the working copy. Now you
can keep telling us its not true, but as far as I understand *you* are
the new user here.

> It might be a latency issue in the network; we've got a few other issues
> like that. Given the higher count of roundtrips that would make sense.

That would make sense, especially if you use the HTTP protocol with
the Neon library. You could try building the soon-to-be-released
1.5-alpha1 version with Serf library. That could tell you the impact
of the higher number of connections: Serf uses the HTTP/1.1 protocol
with request-pipelining in order to reduce the number of connections
used.

But, even though it will be faster, I expect the factor 2 to stay
roughly the same: the working copy library still has to do twice the
I/O CVS does.

HTH,

Erik.

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Received on 2008-02-25 11:04:47 CET

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