ML370 G4 with poor Network Performance and high CPU Load

rene at reckschwardt.de rene at reckschwardt.de
Thu Nov 11 22:44:36 UTC 2010


  Hello YongHyeon,

yes, booth Test-Servers are in idle State, no Disk activity and no 
important Networktraffic.

the pciconf -lcbv for the Nics:

em0 at pci0:7:1:0: class=0x020000 card=0x00db0e11 chip=0x10108086 rev=0x01 
hdr=0x00
     vendor     = 'Intel Corporation'
     device     = 'Dual Port Gigabit Ethernet Controller (Copper) 
(82546EB)'
     class      = network
     subclass   = ethernet
     bar   [10] = type Memory, range 64, base 0xfdfe0000, size 131072, 
enabled
     bar   [18] = type Memory, range 64, base 0xfdf80000, size 262144, 
enabled
     bar   [20] = type I/O Port, range 32, base 0x6000, size 64, enabled
     cap 01[dc] = powerspec 2  supports D0 D3  current D0
     cap 07[e4] = PCI-X 64-bit supports 133MHz, 2048 burst read, 1 split 
transaction
     cap 05[f0] = MSI supports 1 message, 64 bit
em1 at pci0:7:1:1: class=0x020000 card=0x00db0e11 chip=0x10108086 rev=0x01 
hdr=0x00
     vendor     = 'Intel Corporation'
     device     = 'Dual Port Gigabit Ethernet Controller (Copper) 
(82546EB)'
     class      = network
     subclass   = ethernet
     bar   [10] = type Memory, range 64, base 0xfdf60000, size 131072, 
enabled
     bar   [20] = type I/O Port, range 32, base 0x6040, size 64, enabled
     cap 01[dc] = powerspec 2  supports D0 D3  current D0
     cap 07[e4] = PCI-X 64-bit supports 133MHz, 2048 burst read, 1 split 
transaction
     cap 05[f0] = MSI supports 1 message, 64 bit

if you need more Info please ask me ;-)

thanks for your responce ré

> On Thu, Nov 11, 2010 at 07:35:32PM +0000, rene at reckschwardt.de wrote:
>>   Hello,
>>
>> i am new in this Maillist and i use an ML370G4 with FreeBSD 8.1 AMD64. I
>> try with netio and TCP. The used Nics are onboard Broadcom
>> (PCI-X133Mhz), an Broadcom PCI-X Nic and an intel PCI-X Nic. The CPU
>> load is around 35% and the performance like this:
>>
>> Packet size  1k bytes:  99303 KByte/s Tx,  44576 KByte/s Rx.
>> Packet size  2k bytes:  72043 KByte/s Tx,  75200 KByte/s Rx.
>> Packet size  4k bytes:  23280 KByte/s Tx,  66072 KByte/s Rx.
>> Packet size  8k bytes:  55234 KByte/s Tx,  64470 KByte/s Rx.
>> Packet size 16k bytes:  82485 KByte/s Tx,  74099 KByte/s Rx.
>> Packet size 32k bytes:  93133 KByte/s Tx,  74992 KByte/s Rx.
>>
> And you did perform the test on idle system?(No disk activity, no
> other network IOs etc).
>
> Show me the dmesg output of verbose boot and output of "pciconf
> -lcbv".
>
>> I try the following tuning:
>>
>> kern.ipc.maxsockbuf=16777216
>> net.inet.tcp.sendbuf_max=16777216
>> net.inet.tcp.recvbuf_max=16777216
>> net.inet.tcp.sendbuf_inc=16384
>> net.inet.tcp.recvbuf_inc=524288
>> net.inet.tcp.inflight.enable=0
>> net.inet.tcp.hostcache.expire=1
>>
>> but this is not helpfull, the Load goes to 60% and the Performance is
>> also poor. How can i prevent this Problem?
>>
>> thanks for response r?
>>
>>
>> P.S. the same Computer with Linux runs perfect with Performance and 1-2%
>> Load,
>>
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