RE: Extended RAC - latency on real systems

You'd be better off asking a question like this on the NANOG mailing list:

http://www.nanog.org/

There's nothing specific about RAC versus any other traffic-based latencies for various packet sizes. One thing to keep in mind for your research, though, is that most extended-distance WAN links have smaller MTUs, and hence jumbo frames are not an option.

Thanks,
Matt

--

Matthew Zito
Chief Scientist
GridApp Systems
P: 646-452-4090
mzito_at_gridapp.com
http://www.gridapp.com

-----Original Message-----

From: oracle-l-bounce_at_freelists.org on behalf of Jakub Wartak Sent: Wed 4/2/2008 8:40 PM
To: oracle-l_at_freelists.org
Subject: Extended RAC - latency on real systems  

Hello experts,

I'm doing small academic research about Extended RAC and latencies, could anybody send me round-trip-tipe average latencies (with distances and interface types) observed between distributed nodes? Preferably measured using ICMP ping with standard packet sizes and bigger ones (up to MTU, e.g. ~9000 for Jumbo Frames, on Linux it's the "-s <size>" argument). Last two lines of /bin/ping would be pretty enough...

Thanks.

--

Jakub Wartak
http://vnull.pcnet.com.pl
--

http://www.freelists.org/webpage/oracle-l

--

http://www.freelists.org/webpage/oracle-l Received on Wed Apr 02 2008 - 23:50:13 CDT