[SGVLUG] Samba performance issue

[Matt Campbell]

Oh Yuck!

I formatted the arrays ext3, it looks like it's really slow compared to
ext2.  Is that generally correct?  Is journaling the main difference between
versions 2 and 3?

I installed and ran iozone.  Neat program, but it will take a bit to get my
head around which things are interesting to test for.  Attached please find
an XML spreadsheet of the first data run I did.

There is something going on, while I am streaming data from the sever the
network usage looks like a sine wave....

Matt

> -----Original Message-----
> From: sgvlug-bounces at sgvlug.net [mailto:sgvlug-bounces at sgvlug.net] On
> Behalf Of Dan Kegel
> Sent: Wednesday, May 21, 2008 9:26 PM
> To: SGVLUG Discussion List.
> Subject: Re: [SGVLUG] Samba performance issue
> 
> On Wed, May 21, 2008 at 8:16 PM, Matt Campbell <dvdmatt at gmail.com>
> wrote:
> > I can write a simple program on a Linux or Windows client machine to
> make
> > simple random file requests and time the responses, but would this
> really be
> > indicative of streaming performance?  I could open a large media file
> > (larger than RAM on server and client combined) and request block
> after
> > block and graph response times and dropped blocks.
> >
> > What type of testing do you think should be done to deliver a useful
> > benchmark?
> 
> http://iozone.org/ has a read latency measurement, maybe that's a
> start?
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