systems without pread?
jpeach at sgi.com
Thu Dec 18 22:40:59 GMT 2003
On Tue, 16 Dec 2003 15:12:21 -0800
Jeremy Allison <jra at samba.org> wrote:
> On Wed, Dec 17, 2003 at 09:30:22AM +1100, James Peach wrote:
> > >
> > > Hmmmm. How have you tested this performance win ?
> > I have a smallish test setup using an Origin 3k server and 4 Origin 300
> > clients. I'm connecting each client to the server through a different
> > gig-e NIC and running multiple load generators on each client. I'm
> > gathering performance numbers using Performance Co-Pilot - these include
> > NIC throughput, CPU time, samba IOPs per second, and a bunch more stuff.
> What does the performance change look like on Linux ? Have you been
> able to do tests there yet ?
A preliminary experiment on write throughput (single client) running on
Linux 2.4.21 on IA64:
Workload: Streaming Write (pwrite)
16384 12 82.45 (in) 1.58 (out) (with pread)
16384 12 75.99 (in) 1.41 (out) (without pread)
James Peach | jpeach at sgi.com | SGI Australian Software Group
I don't speak for SGI.
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