Hi, Scott,
I have been running SDP tests across two woodcrest nodes with 4x DDR
cards using OFED-1.2.5.4. The card/firmware info is below.
CA 'mthca0'
CA type: MT25208
Number of ports: 2
Firmware version: 5.1.400
Hardware version: a0
Node GUID: 0x0002c90200228e0c
System image GUID: 0x0002c90200228e0f
I could not get a bandwidth more than 5Gbps like you have shown here.
Wonder if I need to upgrade to the latest software or firmware? Any
suggestions?
Thanks,
--Weikuan
TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 192.168.225.77
(192.168
.225.77) port 0 AF_INET
Recv Send Send Utilization Service
Demand
Socket Socket Message Elapsed Send Recv Send Recv
Size Size Size Time Throughput local remote local
remote
bytes bytes bytes secs. 10^6bits/s % S % S us/KB us/KB
131072 131072 131072 10.00 4918.95 21.29 24.99 1.418
1.665
Scott Weitzenkamp (sweitzen) wrote:
Jim,
I am trying OFED-1.3-20071231-0600 and RHEL4 x86_64 on a dual CPU
(single core each CPU) Xeon system. I do not see any performance
improvement (either throughput or CPU utilization) using netperf when I
set /sys/module/ib_sdp/sdp_zcopy_thresh to 16384. Can you elaborate on
your HCA type, and performance improvement you see?
Here's an example netperf command line when using a Cheetah DDR HCA and
1.2.917 firmware (I have also tried ConnectX and 2.3.000 firmware too):
[EMAIL PROTECTED] ~]$ LD_PRELOAD=libsdp.so netperf241 -v2 -4 -H
192.168.1.201 -l 30 -t TCP_STREAM -c -C -- -m 65536
TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 192.168.1.201
(192.168.1.201) port 0 AF_INET : histogram : demo
Recv Send Send Utilization Service
Demand
Socket Socket Message Elapsed Send Recv Send
Recv
Size Size Size Time Throughput local remote local
remote
bytes bytes bytes secs. 10^6bits/s % S % S us/KB
us/KB
87380 16384 65536 30.01 7267.70 55.06 61.27 1.241
1.381
Alignment Offset Bytes Bytes Sends Bytes
Recvs
Local Remote Local Remote Xfered Per Per
Send Recv Send Recv Send (avg) Recv (avg)
8 8 0 0 2.726e+10 65536.00 415942 48106.01
566648
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