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RE: SVN performance -URGENT

From: Bob Archer <Bob.Archer_at_amsi.com>
Date: Thu, 1 Aug 2013 15:30:35 +0000

> Bandwidth is 35.4 MBytes/sec from my system(London)  to server(New york)
> when i checked with iperf tool.

WOW! That is insanely fast. Are you sure its not 35 Mbps (Mega bits!!)? Google Fiber that everyone covets is 1 Gbps (Giga bit per second) or 1024 Mbps or 128 MBps.

At 35 Mbps it would take a little less than 7 minutes to transfer. That is assuming constant speed. Can you copy the folder from the machine in London to the machine in New York in under 7 minutes?

At 35 MBps it would take under a minute!

> We are using LDAP
>
> AuthzLDAPAuthoritative off
> AuthType Basic
> AuthBasicProvider ldap
> AuthName "Windows Credentials"
>
>
> As per message after checkout in TortoiseSVN GUI = 368 Mbytes transfered.
> Actual folder size = 1.15 GB(1236706079 bytes) Number of files = 201,712
> Folder = 21,707
>
> Guess this inculdes the .svn folder as well.
>
>
> Thanks,
> Anup

I'm not sure why there would be that much overhead with SVN, I guess it does no caching. One the plus side, you only have to check out once. ;)

Have you tried to check out some large public stuff? For example, check out the subversion repository and see how long that takes.

Was the command line checkout time any different?

>
>
>
>
>
> ________________________________________
> From: kmradke_at_rockwellcollins.com [mailto:kmradke_at_rockwellcollins.com]
> Sent: 01 August 2013 15:20
> To: Bob Archer
> Cc: Somashekarappa, Anup (CWM-NR); users_at_subversion.apache.org
> Subject: RE: SVN performance -URGENT
> Bob Archer <Bob.Archer_at_amsi.com> wrote on 08/01/2013 09:02:32 AM:
> > > We are using subversion 1.7 which is hosted in linux and apache
> > > isbeing used along with this.
> > > The linux is very powerful but we are facing a major issue during
> > > the SVN operation from the windows system.
> > > Windows system : Microsoft windows XP
> > > 2.85 GB of Ram
> > > tortoisesvn 1.7
> > > Windows system is based in london and SVN server(linux system) is
> > > located in New york .When i checked the bandwidth using iperf from
> > > the windows system ,it is showing as 35.5MB .
>
> 35.5MB/s or 35.5Mb/s?  The first one would be a 284Mb/s connection between
> London and NY...
>
> What is the latency between the client and server?  Latency can be a big killer
> depending upon the authentication used.
>
> > > So when i do a checkout of repository ,it get message at last saying .
> > > 2200MBytes transfered at  143 mins.Which is very annoying.
> > > According to bandwidth etc etc it should finish the checkout in few mins.
> > > May i know where is the bottleneck?
>
> The total amount of data transferred shown by TortoiseSVN can sometimes be
> quite misleading.  How big is the working copy that is created?
>
> Kevin R.
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Received on 2013-08-01 17:31:09 CEST

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