Performance Issues on 6.3
dak.col at gmail.com
Sat Mar 1 18:03:51 UTC 2008
On Wed, Feb 27, 2008 at 1:16 PM, Mel
<fbsd.questions at rachie.is-a-geek.net> wrote:
> On Wednesday 27 February 2008 18:56:15 Natham wrote:
> > On Wed, Feb 27, 2008 at 12:26 PM, Lyle Miller <lm101ml at bellsouth.net> wrote:
> > > Natham wrote:
> > > > Hi i have a server with four disk atached, 2 raid 0 and 2 raid 1. Im
> > > > getting a low performance on file trasfers over network to windows
> > > > clients i get only about 30MB/s. Looking at gstat i got both disk are
> > > > trasfering 15000kBps each over a gigabit connection(client and
> > > > server). How can improve performance for my data server?
> > >
> > > i dont know if this will eventually help in your case .....
> > >
> > > ... but ....
> > >
> > > i noticed a link on www.freebsd.org under 'in the media'
> > >
> > > look for 'squeeze your gigabit nic for top performance' dated 2007-10.
> > >
> > > gl
> > Yes, i did everything it recomends. Tahnk you
> How to rule out the raid:
> 1) create a memory disk, in your case I'd go with 256MB if you can spare the
> 2) Put a file on it, size ~210MB (7 * 30MB/s, should give ample time to let
> the transferrate go up)
> 3) share it via samba
> 4) Download it through one of the clients
> If the transfer rate is still low, it's not the raid. Install a bandwidth
> monitor then (net/bmon for example) and see if the traffic is actually higher
> then the 30MB/s, eating the rest of your bandwidth, investigate samba issues,
> switches, clients (are they really configured Gbit?).
> If the transfer rate is much higher, you're pretty safe to assume it's a disk
> Manpage to read:
> mdconfig(8) - choose swap backed btw.
> Problem with today's modular software: they start with the modules
> and never get to the software part.
I made the test today and i got awesome results. One of my harddrives
(RAID 1 ) goes offline. I made the test with only 1 disk trasfering a
1.7GB file trought FTP and samba. Samba got about 24mb/s and ftp got
about 45mb/s from the single disk both. Samba takes the twice the time
than ftp, it is my bottleneck anyone has any patch/suggestion to improve
the samba performance on freebsd?
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