FastE NIC Recommendation

Trent Piepho xyzzy at
Mon Nov 18 01:51:56 PST 2002

On Mon, 18 Nov 2002, Steffen Persvold wrote:
> The Intel e1000 (which is in the Linux kernel tree btw.) has a ping-pong/2 
> latency of about 25us on a decent Platform (Xeon, E7500 chipset). The 
> Broadcom 5700 series (with the tg3 driver) has approx. 30us ping-pong/2 
> latency on a ServerWorks GC-LE chipset (also Xeon processors). _But_ if 
> you try e1000 on a AMD 760 MPX chipset for instance, the latency increases 
> to 65 us ping-pong/2. YMMV.

Is that an interaction between the 760MPX and the e1000, or typical for the
760MPX?  ie. does the broadcom 5700 also have high latency with AMD chipsets?

More information about the Beowulf mailing list