[E1000-devel] Slower performance on E5 than i7?

[Ben G. <gr...@ca...>]

We have been seeing across-the-board network performance issues
with the E5 2643 v/s an I7-980.
We've been trying ixgbe, igb, and 'veth' virtual devices.

Driven by user space or pktgen, the E5 is usually slower by
a noticeable bit.  We did disable the VTD BIOS thing that really
kills performance, but perhaps there are other BIOS things we
should tune in the E5 system?

We tried various kernels back to about 3.0 and the general
slowness remains.

Has anyone done similar comparisons and seen issues?

Thanks,
Ben


-- 
Ben Greear <gr...@ca...>
Candela Technologies Inc  http://www.candelatech.com