We are trying to run TIPC on RHEL 7.2, module compiled using github repo https://github.com/Hugne/tipc-rhel7.git
Our setup involves 10 RHEL 7.2 VMs running on 2 ESXi hosts. The ethtool shows bearer running full duplex ethernet 10000Mb/s. Our application sends TIPC messages in a connection oriented mode with all messages sent using high importance and also subscribe to the topology service to get notified when a process comes up or down. When we run our tests I see a lot of link congestion. I also see dups in the RX and TX states. The immediate question is , is this a known issue and are we missing any upstream patches on RHEL 7 that could attribute to this behavior? It is kind of interesting that our application doesn't seem to be affected by this congestion. I am not sure if TIPC compensates for the link congestion some how or we are not testing correctly. Can someone explain what is the impact of link congestion? Should I be worried about dups in the tipc-config output? thanks Ramesh cat /sys/module/tipc/version 2.0.0 uname -a Linux pl01.localdomain 3.10.0-327.10.1.el7.x86_64 #1 SMP Sat Jan 23 04:54:55 EST 2016 x86_64 x86_64 x86_64 GNU/Linux Link <1.1.1:eth0-1.1.2:eth0> ACTIVE MTU:1500 Priority:10 Tolerance:1500 ms Window:50 packets RX packets:261417807 fragments:0/0 bundles:56023/166938 TX packets:261221765 fragments:0/0 bundles:154215/461415 TX profile sample:427258 packets average:316 octets 0-64:0% -256:0% -1024:100% -4096:0% -16384:0% -32768:0% -66000:0% RX states:1356713 probes:2484 naks:11272 defs:11576 dups:63802 TX states:1079272 probes:2555 naks:15628 acks:1059339 dups:97169 Congestion link:3334 Send queue max:80 avg:2 Link <1.1.1:eth0-1.1.3:eth0> ACTIVE MTU:1500 Priority:10 Tolerance:1500 ms Window:50 packets RX packets:249327535 fragments:0/0 bundles:46132/136797 TX packets:249277387 fragments:0/0 bundles:69422/210478 TX profile sample:410901 packets average:318 octets 0-64:0% -256:0% -1024:100% -4096:0% -16384:0% -32768:0% -66000:0% RX states:1073589 probes:2480 naks:4389 defs:11677 dups:30086 TX states:924735 probes:2515 naks:8025 acks:912458 dups:35038 Congestion link:1215 Send queue max:80 avg:2 Link <1.1.1:eth0-1.1.4:eth0> ACTIVE MTU:1500 Priority:10 Tolerance:1500 ms Window:50 packets RX packets:246675382 fragments:0/0 bundles:63742/193772 TX packets:246036006 fragments:0/0 bundles:384356/1154001 TX profile sample:429353 packets average:319 octets 0-64:0% -256:0% -1024:100% -4096:0% -16384:0% -32768:0% -66000:0% RX states:1743106 probes:2484 naks:16703 defs:9825 dups:60508 TX states:1148228 probes:2514 naks:18055 acks:1125641 dups:123100 Congestion link:9510 Send queue max:80 avg:3 Link <1.1.1:eth0-1.1.5:eth0> ACTIVE MTU:1500 Priority:10 Tolerance:1500 ms Window:50 packets RX packets:225128324 fragments:0/0 bundles:58476/177973 TX packets:224744956 fragments:0/0 bundles:252051/755157 TX profile sample:424563 packets average:318 octets 0-64:0% -256:0% -1024:100% -4096:0% -16384:0% -32768:0% -66000:0% RX states:1874387 probes:2485 naks:11827 defs:9619 dups:100842 TX states:1341783 probes:2518 naks:28955 acks:1308306 dups:87257 Congestion link:5564 Send queue max:80 avg:3 Link <1.1.1:eth0-1.1.6:eth0> ACTIVE MTU:1500 Priority:10 Tolerance:1500 ms Window:50 packets RX packets:221134009 fragments:0/0 bundles:53377/164102 TX packets:220738050 fragments:0/0 bundles:255991/762921 TX profile sample:422139 packets average:319 octets 0-64:0% -256:0% -1024:100% -4096:0% -16384:0% -32768:0% -66000:0% RX states:1826440 probes:2492 naks:11154 defs:8797 dups:101142 TX states:1294699 probes:2523 naks:29845 acks:1260272 dups:81031 Congestion link:5265 Send queue max:80 avg:3 Link <1.1.1:eth0-1.1.7:eth0> ACTIVE MTU:1500 Priority:10 Tolerance:1500 ms Window:50 packets RX packets:303149788 fragments:0/0 bundles:167810/579581 TX packets:299451019 fragments:0/0 bundles:2166164/6276948 TX profile sample:411911 packets average:325 octets 0-64:0% -256:0% -1024:100% -4096:0% -16384:0% -32768:0% -66000:0% RX states:3865116 probes:2497 naks:25977 defs:10005 dups:56112 TX states:3882112 probes:2505 naks:13901 acks:3863833 dups:195330 Congestion link:68834 Send queue max:80 avg:3 ------------------------------------------------------------------------------ Developer Access Program for Intel Xeon Phi Processors Access to Intel Xeon Phi processor-based developer platforms. With one year of Intel Parallel Studio XE. Training and support from Colfax. Order your platform today. http://sdm.link/xeonphi _______________________________________________ tipc-discussion mailing list tipc-discussion@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/tipc-discussion
