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Re: Why is subversion so slow?

From: John Goerzen <jgoerzen_at_complete.org>
Date: 2003-05-01 04:08:12 CEST

seanc@dimensionalrift.com writes:

> Its still my experience (with 0.20.1) that a checkout with ra_svn over
> ssh2 is about 8x faster on my linux client than with a windows one. In
> fact, the linux client performs almost as fast as local access. This
> wouldn't bother me if it weren't that almost all the clients would be
> windows machines, if (when? :) I get Subversion rolled out at work.

I've had different experiences. I just saw it take Subversion almost
3 hours to check out a Linux kernel 2.5 tree over a compressed ssh
tunnel with svnserve. Now it's possible that there was some other
issue here, but downloading the same thing as a tarball and unpacking
it takes less than a minute. From my completely unscientific
observation, it appeared characteristic of a system with lots of
back-and-forth that is thus susceptible to latency problems.

I postulated that disabling compression might actually help things,
since the compression hinders latency-sensitive applications. But I
have not yet tested that hypothesis.

-- John

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Received on Thu May 1 04:09:35 2003

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