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Home -> Community -> Usenet -> c.d.o.server -> Re: interconnect stress test
What do you mean by 'stress out' the
interconnect ? Do you want the RAC
instances to suffer from performance
problems, or do you want the interconnect
to have more traffic than it can handle ?
I managed to cause massive performance problems with RAC using the hp/compaq/whatever high speed interconnect (Memory Channel Architecture ?) with just one session per CPU running a pl/sql loop.
I don't know if the actual interconnect was overloaded - but the sessions were losing time on nothing but global lock management.
-- Regards Jonathan Lewis http://www.jlcomp.demon.co.uk The educated person is not the person who can answer the questions, but the person who can question the answers -- T. Schick Jr One-day tutorials: http://www.jlcomp.demon.co.uk/tutorial.html ____Iceland__November (tbc) ____Belgium__November (EOUG event) ____UK_______December (UKOUG conference) Three-day seminar: see http://www.jlcomp.demon.co.uk/seminar.html ____USA__October ____UK___November The Co-operative Oracle Users' FAQ http://www.jlcomp.demon.co.uk/faq/ind_faq.html "gdb_dsr" <ge_2000_2001_at_yahoo.com> wrote in message news:6299d152.0310171111.e5669de_at_posting.google.com...Received on Fri Oct 17 2003 - 13:53:33 CDT
> Hi,
>
> I need to staturate 2 node RAC-9201/Linux interconnect, obviously it
needs
> lot of load. I used about 10 sessions one user each on each node
with oci
> programs and change 15k rows continuously. I dont see much traffic
> (CPUs (4 xenon), scsi disk io are far below to their capacity).
> I dont see any bottelneck.
> (I tried sql scripts to update and retrive but they are too slow)
> I can go for more sessions but for some of the sessions oracle is
not
> responsive for a while. In other words some times they are fast some
times
> too slow.
>
> Does any one knows any better options or environment setup in the
oracle
> to exploit to saturate interconnect (ethernet) card.
>
> Thank you.