Messages in this thread | | | Subject | sk98lin extremely slow transfer rate ASUS P5P800(2.6.17.7) | From | Sean Bruno <> | Date | Thu, 03 Aug 2006 08:40:01 -0700 |
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I am experiencing a very slow(32Kbytes per second) transfer rate on an ASUS P5P800 mobo. This occurs on a special case where I am sending individual 32Kbyte messages from a second server.
I suspect the hardware, but am not sure how to come up with a 'good' regression test for this issue.
Configurations I have tried:
1. If I swap out the ethernet adapter(tried a intel 10/100 and intel 10/100/1000) the transfer rate jumps up into the MBytes / second.
2. If I do 'other' network activity on the box, like scp'ing' files around, the transfer rate for my 32Kbyte packets goes up into the Mbytes / second. So I am a little baffled with the behavior.
3. If I just 'scp' files around of various sizes the transfer rate goes up into the Mbytes / second.
some of the relevant dmesg information:
eth0: Yukon Gigabit Ethernet 10/100/1000Base-T Adapter PrefPort:A RlmtMode:Check Link State ... eth0: network connection up using port A speed: 1000 autonegotiation: yes duplex mode: full flowctrl: symmetric role: slave irq moderation: disabled scatter-gather: disabled tx-checksum: disabled rx-checksum: disabled
lspci -vvv output for the ethernet adapter: 02:05.0 Ethernet controller: Marvell Technology Group Ltd. 88E8001 Gigabit Ethernet Controller (rev 13) Subsystem: ASUSTeK Computer Inc. Marvell 88E8001 Gigabit Ethernet Controller (Asus) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 64 (5750ns min, 7750ns max), Cache Line Size 04 Interrupt: pin A routed to IRQ 7 Region 0: Memory at fbffc000 (32-bit, non-prefetchable) [size=16K] Region 1: I/O ports at e800 [size=256] Expansion ROM at f0000000 [disabled] [size=128K] Capabilities: [48] Power Management version 2 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1 +,D2+,D3hot+,D3cold+) Status: D0 PME-Enable- DSel=0 DScale=1 PME- Capabilities: [50] Vital Product Data
The Marvel ethernet adapter is connected to a Linksys SD2005 10/100/1000 switch.
Any ideas why it would be doing this or a 'good' test for me to try?
Sean
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