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From Jacek Materna <ja...@assembla.com>
Subject Re: Expected speed of commit over HTTP?
Date Thu, 06 Jul 2017 12:07:26 GMT
We've say 2-3x speed decrease using HTTP vs SSH in our cloud. With SSH and
some tuning we are getting close to the IO rate on the end server of any
size. HTTP/mod_dav and RTT is usually the culprit in our cases, on a LAN
that issues collapses. Likely server side processing of the delta's?

-jacek

On Thu, Jul 6, 2017 at 1:54 PM, Paul Hammant <paul@hammant.org> wrote:

> For something that's 500MB in size (random binary data) I'm experiencing
> commits taking
> 10x longer than a straight copy to the drive the Svn repo is on.
>
> Both timings are on the same Ubuntu 17.04 machine, with the boot drive
> being the starting position of the 512MB file and a USB3 mounted 4TB
> seagate hard drive being the destination.
>
> My goal is to fill the 4TB drive with commits for the simple experience of
> that.
>
> How many places in the Apache2 --> mod_dav --> mod_dav_svn handoff does
> the 512MB temporarily manifest itself in a file system on the way to its
> ultimate destination?  Is 1/10th speed the expectation?  Sure, I get that
> 7bit/8bit shenanigans are a factor, but not that much right?
>
> - Paul
>
>


-- 

Jacek Materna
CTO

Assembla
+1 210 410 7661
+48 578 296 708

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