[ofa-general] Chelsio T3: Aggregate Throughput
Philip Frey1
PHF at zurich.ibm.com
Fri Feb 6 01:59:27 PST 2009
> Are the RNICs experiencing lots of pause frames during the test?
>
> ethtool -S ethX|grep Pause
(cheiron was the server and the others were RDMA reading from it)
[root at ajax]$ ethtool -S eth2 | grep Pause
TxPauseFrames : 248428611
RxPauseFrames : 0
[root at achilles]$ ethtool -S eth2 | grep Pause
TxPauseFrames : 250937599
RxPauseFrames : 0
[root at bacchus]$ ethtool -S eth2 | grep Pause
TxPauseFrames : 21153321
RxPauseFrames : 70
[root at borus]$ ethtool -S eth2 | grep Pause
TxPauseFrames : 22056840
RxPauseFrames : 70
[root at car]$ ethtool -S eth2 | grep Pause
TxPauseFrames : 23540619
RxPauseFrames : 70
[root at cheiron]$ ethtool -S eth2 | grep Pause
TxPauseFrames : 0
RxPauseFrames : 26569935
> Also, are the iWARP stacks retransmitting a lot during the test?
>
> cat /sys/class/infiniband/cxgb3_0/proto_stats/tcpRetransSegs
[root at ajax]$ cat /sys/class/infiniband/cxgb3_0/proto_stats/tcpRetransSegs
0
[root at achilles]$ cat
/sys/class/infiniband/cxgb3_0/proto_stats/tcpRetransSegs
0
[root at bacchus]$ cat
/sys/class/infiniband/cxgb3_0/proto_stats/tcpRetransSegs
0
[root at borus]$ cat /sys/class/infiniband/cxgb3_0/proto_stats/tcpRetransSegs
0
[root at car]$ cat /sys/class/infiniband/cxgb3_0/proto_stats/tcpRetransSegs
0
[root at cheiron]$ cat
/sys/class/infiniband/cxgb3_0/proto_stats/tcpRetransSegs
0
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