The following has be reported by IBM LTC:  
[perf][netperf] poor throughput of e1000 in RHAS 3.0 B1
Hardware Environment:
(2) x335's (2.0 GHz)
NIC on client cabled directly to like NIC on server
specific NIC defined in results section

Software Environment:
RHAS 3.0 B1
netperf-2.2pl3 TCP_STREAM test
results are averages of 5 60-second runs per send msg size
all standard deviations were acceptable (typically much less than 0.20%)
MTU 1500


Steps to Reproduce:
1. Install RHAS 3.0 B1 on client and server
2. Install netperf-2.2pl3 on client and server
3. Run netserver on server side
4. Run 5 60 second netperf TCP_STREAM tests from the client
5. Average the throughputs of all 5 runs, check for acceptable std dev


Actual Results:
Throughput (Mbits/s) per send message size
         1K      2K      4K      8K      16K     32K     64K
tg3      530.62  684.11  809.83  911.62  938.21  940.49  940.50
e1000    475.92  551.26  556.32  554.73  552.14  547.37  470.44


Expected Results:
The throughput for the e1000 driver included in RHAS 3.0 B1
should more more closely match that of tg3.


Additional Information:Glen / Greg
Talked to Barry, he wants problem reported to RedHat.  Thanks