> >Now to the next question. Why does the network I/O create such a high CPU
> >utilization? Is it because the ce adapters lack hardware acceleration
> >features, or is it because the Solaris 9 IP-stack isn't very fast?
> >
> >
> >
>
> You have mentioned you run Sun Trunking. IIRC that software can only run
> on old Sun GEM gigabit cards (driver ge).

More recent versions of SunTrunking have supported ce devices for some
time now.

> Those cards produce a lot of interrupts so they are not very efficient
> in terms of CPU consumption.
> You'd better of with newer chipsets, but not sure if Sun Trunking now
> supports them.
> In any case I know there are other 3d party alternatives to Sun Trunking
> that work with many (if not all) NICs.

Do you have any examples?  I'd love to know about them.

IPMP can do some of what SunTrunking does, but not all of it.  It's
especially poor for a backup server which would like to aggregate lots
of incoming traffic from a small number of clients.

--
Darren Dunham                                           ddunham AT taos DOT com
Senior Technical Consultant         TAOS            http://www.taos.com/
Got some Dr Pepper?                           San Francisco, CA bay area
         < This line left intentionally blank to confuse you. >

--
Note: To sign off this list, send a "signoff networker" command via email
to listserv AT listmail.temple DOT edu or visit the list's Web site at
http://listmail.temple.edu/archives/networker.html where you can
also view and post messages to the list. Questions regarding this list
should be sent to stan AT temple DOT edu
=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=