BackupPC-users

Re: [BackupPC-users] Performance reference (linux --(rsync)-> linux)

2012-11-06 05:01:36
Subject: Re: [BackupPC-users] Performance reference (linux --(rsync)-> linux)
From: Cassiano Surek <cass AT surek.co DOT uk>
To: "General list for user discussion, questions and support" <backuppc-users AT lists.sourceforge DOT net>
Date: Tue, 6 Nov 2012 09:59:39 +0000
Hi Michael, thanks for answering.

> 
> On a full, it looks like my systems generally get around 6Mb/s, and closer
> to 1Mb/s on an incremental -- comparing the files may not take a lot of
> bandwidth, but it does take resources on both sides, so what you're seeing
> may be normal for an incremental, I don't know.
> 
> My backup server is a Q6600 (4x2.4Ghz) system running Linux kernel 3.5.7,
> and the file system is xfs on RAID6.
> 
> On the client side, I selected a client to look at at random, it happens
> to be running FreeBSD 9.1 and the filesystem is ufs.

Based on the above, I seem to be on the very slow side, incrementals 
considered. 

The main difference I see (apart from the RAM that was pointed out by Jeff), is 
the file system. Whilst I am using ext3, you are on xfs. Some report xfs 
performance increase is noticeable. Is that your experience  and would you 
think that I should move mine to xfs as well?

I have started another backup last night to gather yet another set of numbers 
to compare with the results you've kindly provided.

Many thanks

Cass
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