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<DIV><SPAN class=110264122-22052008><FONT face=Arial color=#0000ff size=2>never
mind. my use of perfquery to reset counters was not correct.
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<FONT face=Tahoma size=2><B>From:</B> general-bounces@lists.openfabrics.org
[mailto:general-bounces@lists.openfabrics.org] <B>On Behalf Of </B>Davis,
Arlin R<BR><B>Sent:</B> Thursday, May 22, 2008 2:55 PM<BR><B>To:</B>
[ofa_general]<BR><B>Subject:</B> [ofa-general] Multi-port testing with
ibv_rdma_bw shows strangeresults<BR></FONT><BR></DIV>
<DIV></DIV><!-- Converted from text/rtf format --><BR>
<P><FONT face=Arial size=2>I have 2 servers (cst-53, cst-54) connected via one
switch using a mlx4 dual port adapter. I did a quick test, using ibv_rdma_bw,
across port 1 and then port 2. When running across port 1 the data seems to be
split across port 1 and port 2, across port 2 the traffic is all on port 2 as
expected. Any ideas? Can I trust perfquery results?</FONT></P>
<P><FONT face=Arial size=2>Thanks,</FONT> </P>
<P><FONT face=Arial size=2>-arlin</FONT> </P>
<P><B><FONT face=Arial color=#0000ff size=2>my configuration (OFED 1.3,
RHEL5.1)</FONT></B><FONT face=Arial color=#0000ff size=2>:</FONT><FONT
face="Times New Roman"> </FONT><BR><B><FONT face=Arial color=#0000ff
size=2>cst-53:</FONT></B><FONT face="Times New Roman"> </FONT><BR><FONT
face=Arial color=#0000ff size=2>[root@cst-54 sbin]# ibstat<BR>CA
'mlx4_0'<BR>CA type: MT26418<BR>Number of ports: 2<BR>Firmware version:
2.4.938<BR>Hardware version: a0<BR>Node GUID: 0x0002c9030000a5b4<BR>System
image GUID: 0x0002c9030000a5b7<BR>Port 1:<BR>State: Active<BR>Physical state:
LinkUp<BR>Rate: 10<BR>Base lid: 24<BR>LMC: 0<BR>SM lid: 3<BR>Capability mask:
0x02510868<BR>Port GUID: 0x0002c9030000a5b5<BR>Port 2:<BR>State:
Active<BR>Physical state: LinkUp<BR>Rate: 10<BR>Base lid: 25<BR>LMC: 0<BR>SM
lid: 3<BR>Capability mask: 0x02510868<BR>Port GUID: 0x0002c9030000a5b6</FONT>
<BR><B><FONT face=Arial color=#0000ff size=2>cst-54:</FONT></B><FONT
face=Arial color=#0000ff size=2> </FONT><BR><FONT face=Arial color=#0000ff
size=2>[root@cst-53 fw-25408-rel-2_4_938]# ibstat<BR>CA 'mlx4_0'<BR>CA type:
MT26418<BR>Number of ports: 2<BR>Firmware version: 2.4.938<BR>Hardware
version: a0<BR>Node GUID: 0x0002c9030000a620<BR>System image GUID:
0x0002c9030000a623<BR>Port 1:<BR>State: Active<BR>Physical state:
LinkUp<BR>Rate: 2<BR>Base lid: 22<BR>LMC: 0<BR>SM lid: 3<BR>Capability mask:
0x02510868<BR>Port GUID: 0x0002c9030000a621<BR>Port 2:<BR>State:
Active<BR>Physical state: LinkUp<BR>Rate: 10<BR>Base lid: 23<BR>LMC: 0<BR>SM
lid: 3<BR>Capability mask: 0x02510868<BR>Port GUID: 0x0002c9030000a622</FONT>
<BR><B><FONT face=Arial color=#0000ff size=2>TEST results:</FONT></B><FONT
face="Times New Roman"> </FONT><BR><B><FONT face=Arial color=#0000ff
size=2>ibv_rdma_bw on port 2 is working fine, all traffic on port
2:</FONT></B><FONT face=Arial color=#0000ff size=2>:</FONT><FONT
face="Times New Roman"> </FONT><BR><B><FONT face=Arial color=#0000ff
size=2>server:</FONT></B><FONT face="Times New Roman"> </FONT><BR><FONT
face=Arial color=#0000ff size=2>perfquery -R;/usr/bin/ib_rdma_bw -i
2;perfquery 24 1;perfquery 25 2</FONT><FONT face="Times New Roman">
</FONT><BR><FONT face=Arial color=#0000ff size=2>11621: | port=18515
|</FONT><B> <FONT face=Arial color=#0000ff size=2>ib_port=2</FONT></B><FONT
face=Arial color=#0000ff size=2> | size=65536 | tx_depth=100 | iters=1000 |
duplex=0 | cma=0 |<BR>11621: Local address: LID 0x19, QPN 0x16004a, PSN
0x42d3c6 RKey 0xc8002401 VAddr 0x002aaaaaf03000<BR>11621: Remote address: LID
0x17, QPN 0x16004a, PSN 0x65136b, RKey 0x82002401 VAddr
0x002aaaab313000</FONT><FONT face="Times New Roman"> </FONT><BR><FONT
face=Arial color=#0000ff size=2># Port counters: Lid 24 port
1<BR>PortSelect:......................1<BR>XmtData:.........................0<BR>RcvData:.........................0<BR>XmtPkts:.........................0<BR>RcvPkts:.........................0<BR>#
Port counters: Lid 25 port
2<BR>PortSelect:......................2<BR>XmtData:.........................62946<BR>RcvData:.........................116072668<BR>XmtPkts:.........................7279<BR>RcvPkts:.........................224274</FONT>
<BR><B><FONT face=Arial color=#0000ff size=2>client:</FONT></B><FONT
face="Times New Roman"> </FONT><BR><FONT face=Arial color=#0000ff
size=2>perfquery -R;/usr/bin/ib_rdma_bw -i 2 cst-54;perfquery 22 1;perfquery
23 2</FONT> <BR><FONT face=Arial color=#0000ff size=2>9190: | port=18515
|</FONT><B> <FONT face=Arial color=#0000ff size=2>ib_port=2</FONT></B><FONT
face=Arial color=#0000ff size=2> | size=65536 | tx_depth=100 | iters=1000 |
duplex=0 | cma=0 |<BR>9190: Local address: LID 0x17, QPN 0x16004a, PSN
0x65136b RKey 0x82002401 VAddr 0x002aaaab313000<BR>9190: Remote address: LID
0x19, QPN 0x16004a, PSN 0x42d3c6, RKey 0xc8002401 VAddr
0x002aaaaaf03000</FONT><FONT face="Times New Roman"> </FONT><BR><FONT
face=Arial color=#0000ff size=2>9190: Bandwidth peak (#0 to #983): 937.621
MB/sec<BR>9190: Bandwidth average: 937.614 MB/sec<BR>9190: Service Demand peak
(#0 to #983): 2077 cycles/KB<BR>9190: Service Demand Avg : 2077 cycles/KB<BR>#
Port counters: Lid 22 port
1<BR>XmtData:.........................0<BR>RcvData:.........................0<BR>XmtPkts:.........................0<BR>RcvPkts:.........................0<BR>#
Port counters: Lid 23 port
2<BR>XmtData:.........................116075478<BR>RcvData:.........................66442<BR>XmtPkts:.........................224298<BR>RcvPkts:.........................7318</FONT>
<BR><B><FONT face=Arial color=#0000ff size=2>port 1 with strange results -
traffic split between port 1 and 2</FONT></B><FONT face=Arial color=#0000ff
size=2>: </FONT><BR><B><FONT face=Arial color=#0000ff
size=2>client:</FONT></B><FONT face=Arial color=#0000ff size=2>
</FONT><BR><FONT face=Arial color=#0000ff size=2>[root@cst-53
fw-25408-rel-2_4_938]# perfquery -R;/usr/bin/ib_rdma_bw -i 1 cst-54;perfquery
22 1;perfquery 23 2 </FONT><BR><FONT face=Arial color=#0000ff size=2>9144: |
port=18515 |</FONT><B> <FONT face=Arial color=#0000ff
size=2>ib_port=1</FONT></B><FONT face=Arial color=#0000ff size=2> | size=65536
| tx_depth=100 | iters=1000 | duplex=0 | cma=0 |<BR>9144: Local address: LID
0x16, QPN 0x10004a, PSN 0xd125be RKey 0x34002401 VAddr
0x002aaaab313000<BR>9144: Remote address: LID 0x18, QPN 0x10004a, PSN
0x5cb52c, RKey 0x7a002401 VAddr 0x002aaaaaf03000 </FONT><BR><BR><FONT
face=Arial color=#0000ff size=2>9144: Bandwidth peak (#0 to #978): 234.634
MB/sec<BR>9144: Bandwidth average: 234.634 MB/sec<BR>9144: Service Demand peak
(#0 to #978): 8303 cycles/KB<BR>9144: Service Demand Avg : 8303
cycles/KB</FONT> <BR><FONT face=Arial color=#0000ff size=2># Port counters:
Lid 22 port
1<BR>XmtData:.........................16580072<BR>RcvData:.........................7072<BR>XmtPkts:.........................32001<BR>RcvPkts:.........................1001<BR>#
Port counters: Lid 23 port
2<BR>XmtData:.........................82915046<BR>RcvData:.........................51692<BR>XmtPkts:.........................160292<BR>RcvPkts:.........................5308</FONT>
<BR><B><FONT face=Arial color=#0000ff size=2>server:</FONT></B><FONT
face=Arial color=#0000ff size=2> </FONT><BR><FONT face=Arial color=#0000ff
size=2>[root@cst-54 sbin]# perfquery -R;/usr/bin/ib_rdma_bw -i 1 ;perfquery 24
1;perfquery 25 2<BR>11586: | port=18515 |</FONT><B> <FONT face=Arial
color=#0000ff size=2>ib_port=1</FONT></B><FONT face=Arial color=#0000ff
size=2> | size=65536 | tx_depth=100 | iters=1000 | duplex=0 | cma=0
|<BR>11586: Local address: LID 0x18, QPN 0x14004a, PSN 0x5e8160 RKey
0xae002401 VAddr 0x002aaaaaf03000<BR>11586: Remote address: LID 0x16, QPN
0x14004a, PSN 0xf0dd70, RKey 0x68002401 VAddr 0x002aaaab313000
</FONT><BR><FONT face=Arial color=#0000ff size=2># Port counters: Lid 24 port
1<BR>XmtData:.........................7000<BR>RcvData:.........................16580000<BR>XmtPkts:.........................1000<BR>RcvPkts:.........................32000<BR>#
Port counters: Lid 25 port
2<BR>XmtData:.........................55802<BR>RcvData:.........................99492206<BR>XmtPkts:.........................6277<BR>RcvPkts:.........................192268</FONT>
<BR><B><FONT face=Arial color=#0000ff size=2>ibtracert:</FONT></B><FONT
face=Arial color=#0000ff size=2> </FONT><BR><B><FONT face=Arial color=#0000ff
size=2>cst-53 port 1 to cst-54 port 1</FONT></B><FONT face=Arial color=#0000ff
size=2> </FONT><BR><FONT face=Arial color=#0000ff size=2>[root@cst-54 sbin]#
ibtracert 22 24<BR>>From ca {0x0002c9030000a620} portnum 1 lid 22-22
"cst-53 HCA-1"<BR>[1] -> switch port {0x000b8cffff004046}[2] lid 2-2
"MT47396 Infiniscale-III Mellanox Technologies"<BR>[4] -> ca port
{0x0002c9030000a5b5}[1] lid 24-24 "cst-54 HCA-1"<BR>To ca {0x0002c9030000a5b4}
portnum 1 lid 24-24 "cst-54 HCA-1"</FONT> <BR><B><FONT face=Arial
color=#0000ff size=2>cst-53 port 2 to cst-54 port 2</FONT></B><FONT face=Arial
color=#0000ff size=2> </FONT><BR><FONT face=Arial color=#0000ff
size=2>[root@cst-54 sbin]# ibtracert 23 25<BR>>From ca {0x0002c9030000a620}
portnum 2 lid 23-23 "cst-53 HCA-1"<BR>[2] -> switch port
{0x000b8cffff004046}[3] lid 2-2 "MT47396 Infiniscale-III Mellanox
Technologies"<BR>[1] -> ca port {0x0002c9030000a5b6}[2] lid 25-25 "cst-54
HCA-1"<BR>To ca {0x0002c9030000a5b4} portnum 2 lid 25-25 "cst-54
HCA-1"<BR></FONT><BR><FONT face=Arial size=2> </FONT>
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