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Re: on svnserve (was Re: pitiful dav performance)

From: <seanc_at_dimensionalrift.com>
Date: 2003-02-26 11:26:32 CET

> On Tue, 2003-02-25 at 22:24, seanc@dimensionalrift.com wrote:
>> localhost tunnel svnserve with ssh (ssh2 protocol) : 13s
>> remote tunneled svnserve with plink (ssh2 protocol) : 1m 48s
>
> Can you measure the latency of your ssh link?

Any suggestions on how to do this? Right now my plan is to just throwing
as many ssh clients as I can find at it and compare. I just completed
openssh and it checks out the code in 63s, which is nearly twice as fast
as plink, but still 5 times slower than the svnserve daemon. I have some
obscure/old ssh clients I want to try but, need pass a few of them custom
arguments since they don't read config files like openssh or plink can.

>
> The operation you describe (checkout of 326 files totalling 2MB) doesn't
> seem like it should involve a huge number of round trips, even though
> ra_svn isn't very pipelined. But if your latency is very high, it could
> be an issue.

As for my network connection, its a 100 megabit link going through a
10/100 switch. Your basic home LAN with only 2 computers on it. The
switch does have a 10 megabit uplink to a DSL connection, but I've ruled
it out by unplugging it for a variety of tests. Ping times between the
machines are < 1ms.

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Received on Wed Feb 26 11:27:16 2003

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