igb broken? Unexplained weirdness with intel 82576 nics on a
supermicro board.
joe
joe at hostedcontent.com
Sat May 8 09:42:01 UTC 2010
I have 3 boxes, each with two nics. One nic for the private network and
one for the public network.
The private network is all on the same vlan. All 6 nics are on the same
switch. All connections are 1000tx Full Duplex.
I will call the servers Box A, Box B, and Box C.
When i FTP data between Box A & B i get abou 25MB/sec.
When i FTP data from Box C to Box A or B, i get about 20MB/sec.
When i FTP data from Box A to C i get 10MB/sec
When i FTP data from Box B to C i get 200KB/sec...
Can anyone suggest why i might only be getting 200KB when transfering
data from Box B to C but not when transferring data from Box A to C?
I tried installing ubuntu to see if the problem was still there and it
is not. I can FTP data from Box A or B to box C at 10MB/sec, still not
the gigabit speeds i should be seeing but not the 200KB/sec i am
getting with freebsd.
I logged into my switch and it reports that the ports are 1000tx full
duplex, the same as what freebsd is reporting. The switch & freebsd also
report no errors.
I really dont know what to do. Nothing anywhere reports showing a
problem but obviously there is a problem somewhere. I've tried drivers
1.9.5, 1.8.4, and 1.7.3. If i use 1.8.4 or 1.7.3 i get 50KB/sec
transferring data from box B whereas if i use 1.9.5 i get 200-300KB sec.
I should be getting like 50MB/sec ;(
Any help would be grateful. Or, maybe someone could put me in touch with
the person responsible for the intel nic drivers and i can work with
them on resolving this issue?
Thanks in advance.
Name Mtu Network Address Ipkts Ierrs Idrop
Opkts Oerrs Coll
igb0 1500 <Link#1> 00:30:48:9f:11:04 25853 0 0
18340 0 0
igb0 1500 216.105.91.14 216.105.91.145 19040 - -
18343 - -
igb1* 1500 <Link#2> 00:30:48:9f:11:05 0 0 0
0 0 0
lo0 16384 <Link#3> 72 0 0
72 0 0
lo0 16384 127.0.0.0/8 127.0.0.1 72 - -
72 - -
Sysctl info for igb0/1
dev.igb.0.%desc: Intel(R) PRO/1000 Network Connection version - 1.8.4
dev.igb.0.%driver: igb
dev.igb.0.%location: slot=0 function=0
dev.igb.0.%pnpinfo: vendor=0x8086 device=0x10c9 subvendor=0x15d9
subdevice=0x0100 class=0x020000
dev.igb.0.%parent: pci1
dev.igb.0.debug: -1
dev.igb.0.stats: -1
dev.igb.0.flow_control: 3
dev.igb.0.enable_aim: 1
dev.igb.0.low_latency: 128
dev.igb.0.ave_latency: 450
dev.igb.0.bulk_latency: 1200
dev.igb.0.rx_processing_limit: 100
Debug info for igb0
May 8 09:17:57 debbie kernel: igb0: TX(1) Packets sent = 1295
May 8 09:17:57 debbie kernel: igb0: Queue(2) tdh = 106, tdt = 106
May 8 09:17:57 debbie kernel: igb0: TX(2) no descriptors avail event = 0
May 8 09:17:57 debbie kernel: igb0: TX(2) MSIX IRQ Handled = 5353
May 8 09:17:57 debbie kernel: igb0: TX(2) Packets sent = 5450
May 8 09:17:57 debbie kernel: igb0: Queue(3) tdh = 1687, tdt = 1687
May 8 09:17:57 debbie kernel: igb0: TX(3) no descriptors avail event = 0
May 8 09:17:57 debbie kernel: igb0: TX(3) MSIX IRQ Handled = 1335
May 8 09:17:57 debbie kernel: igb0: TX(3) Packets sent = 1354
May 8 09:17:57 debbie kernel: igb0: Queue(0) rdh = 425, rdt = 424
May 8 09:17:57 debbie kernel: igb0: RX(0) Packets received = 16809
May 8 09:17:57 debbie kernel: igb0: RX(0) Split Packets = 12262
May 8 09:17:57 debbie kernel: igb0: RX(0) Byte count = 25894129
May 8 09:17:57 debbie kernel: igb0: RX(0) MSIX IRQ Handled = 43428
May 8 09:17:57 debbie kernel: igb0: RX(0) LRO Queued= 13601
May 8 09:17:57 debbie kernel: igb0: RX(0) LRO Flushed= 9966
May 8 09:17:57 debbie kernel: igb0: Queue(1) rdh = 1700, rdt = 1699
May 8 09:17:57 debbie kernel: igb0: RX(1) Packets received = 1700
May 8 09:17:57 debbie kernel: igb0: RX(1) Split Packets = 937
May 8 09:17:57 debbie kernel: igb0: RX(1) Byte count = 1392691
May 8 09:17:57 debbie kernel: igb0: RX(1) MSIX IRQ Handled = 31888
May 8 09:17:57 debbie kernel: igb0: RX(1) LRO Queued= 1362
May 8 09:17:57 debbie kernel: igb0: RX(1) LRO Flushed= 1351
May 8 09:17:57 debbie kernel: igb0: Queue(2) rdh = 33, rdt = 32
May 8 09:17:57 debbie kernel: igb0: RX(2) Packets received = 6177
May 8 09:17:57 debbie kernel: igb0: RX(2) Split Packets = 1442
May 8 09:17:57 debbie kernel: igb0: RX(2) Byte count = 2518498
May 8 09:17:57 debbie kernel: igb0: RX(2) MSIX IRQ Handled = 36258
May 8 09:17:57 debbie kernel: igb0: RX(2) LRO Queued= 5794
May 8 09:17:57 debbie kernel: igb0: RX(2) LRO Flushed= 5673
May 8 09:17:57 debbie kernel: igb0: Queue(3) rdh = 1418, rdt = 1417
May 8 09:17:57 debbie kernel: igb0: RX(3) Packets received = 1418
May 8 09:17:57 debbie kernel: igb0: RX(3) Split Packets = 939
May 8 09:17:57 debbie kernel: igb0: RX(3) Byte count = 1700710
May 8 09:17:57 debbie kernel: igb0: RX(3) MSIX IRQ Handled = 31399
May 8 09:17:57 debbie kernel: igb0: RX(3) LRO Queued= 1102
May 8 09:17:57 debbie kernel: igb0: RX(3) LRO Flushed= 882
May 8 09:17:57 debbie kernel: igb0: LINK MSIX IRQ Handled = 2
May 8 09:17:57 debbie kernel: igb0: Mbuf defrag failed = 0
May 8 09:17:57 debbie kernel: igb0: Std mbuf header failed = 0
May 8 09:17:57 debbie kernel: igb0: Std mbuf packet failed = 0
May 8 09:17:57 debbie kernel: igb0: Driver dropped packets = 0
May 8 09:17:57 debbie kernel: igb0: Driver tx dma failure in xmit = 0
sysctl status info:
May 8 09:19:08 debbie kernel: igb0: Excessive collisions = 0
May 8 09:19:08 debbie kernel: igb0: Sequence errors = 0
May 8 09:19:08 debbie kernel: igb0: Defer count = 0
May 8 09:19:08 debbie kernel: igb0: Missed Packets = 0
May 8 09:19:08 debbie kernel: igb0: Receive No Buffers = 0
May 8 09:19:08 debbie kernel: igb0: Receive Length Errors = 0
May 8 09:19:08 debbie kernel: igb0: Receive errors = 0
May 8 09:19:08 debbie kernel: igb0: Crc errors = 0
May 8 09:19:08 debbie kernel: igb0: Alignment errors = 0
May 8 09:19:08 debbie kernel: igb0: Collision/Carrier extension errors = 0
May 8 09:19:08 debbie kernel: igb0: RX overruns = 0
May 8 09:19:08 debbie kernel: igb0: watchdog timeouts = 0
May 8 09:19:08 debbie kernel: igb0: XON Rcvd = 17
May 8 09:19:08 debbie kernel: igb0: XON Xmtd = 0
May 8 09:19:08 debbie kernel: igb0: XOFF Rcvd = 17
May 8 09:19:08 debbie kernel: igb0: XOFF Xmtd = 0
May 8 09:19:08 debbie kernel: igb0: Good Packets Rcvd = 26159
May 8 09:19:08 debbie kernel: igb0: Good Packets Xmtd = 21564
May 8 09:19:08 debbie kernel: igb0: TSO Contexts Xmtd = 1687
May 8 09:19:08 debbie kernel: igb0: TSO Contexts Failed = 0
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