Bacula-users

Re: [Bacula-users] Should I use data spooling when writing to nfs mounted storage?

2011-03-07 00:08:44
Subject: Re: [Bacula-users] Should I use data spooling when writing to nfs mounted storage?
From: Kjetil Torgrim Homme <kjetilho AT linpro DOT no>
To: bacula-users AT lists.sourceforge DOT net
Date: Mon, 07 Mar 2011 06:04:50 +0100
Sean Clark <smclark AT tamu DOT edu> writes:

> In my experience, slow performance like this (i.e. <5MB/s on at least
> 100Mb ethernet) usually turns out to be the client's fault.
> Compression seems to be a very common culprit.  Try switching
> compression off completely and see how much of a difference that
> makes.  The latency introduced by waiting for compression - even
> pretty fast compression - seems to substantially choke throughput
> down.

the compression in bacula-fd is also running in a single thread, so you
only exploit one cpu core.  if your disks can handle it, consider
splitting up the client job and run the jobs concurrently.  or just turn
off compression -- usually the data is kept in compressed form on the
client anyway.

-- 
Kjetil T. Homme
Redpill Linpro AS - Changing the game


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