[Beowulf] Re: typical latencies for gigabit ethernet
gerry.creager at tamu.edu
Tue Jun 30 09:10:59 EDT 2009
Dave Love wrote:
> Gerry Creager <gerry.creager at tamu.edu> writes:
>> I had rather nasty results with tg3 and abandoned it. We're using bnx2
>> now. The latest iteration seems (guardedly) better than the last one.
> I thought that they were for different hardware (NetXtreme I
> c.f. NetXtreme II, according to broadcom.com). Is that not the case?
> If bnx2 behaves the same as tg3 here, set rx-frames to 1 with ethtool.
Anaconda (CentOS2 originally installed a tg3 driver. Performance sucked
(technical term) with that and we went to a bnx2 driver consistent with
our understanding of the hardware. It sucked less. Not until a recent
combined BIOS update on the Dell 1950s and a new bnx2 driver, have I
begun to see decent operation at 9000 byte frames.
Gerry Creager -- gerry.creager at tamu.edu
Texas Mesonet -- AATLT, Texas A&M University
Cell: 979.229.5301 Office: 979.458.4020 FAX: 979.862.3983
Office: 1700 Research Parkway Ste 160, TAMU, College Station, TX 77843
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