[Linux-PowerEdge] 10GbE for PE2900?

Linda A. Walsh dell at tlinx.org
Mon Sep 30 11:50:31 CDT 2013



On 9/30/2013 5:12 AM, Sabuj Pattanayek wrote:
> I'm only getting ~340MB/s reads and ~500MB/s writes through my samba
>
>     server with a dual card (and those are maximums for large transfers in
>     memory)
>
>
> I'd check your network, cables, sysctl.conf, test with iperf/netperf 
> if possible.
>>
>     Thinking about it .. a dual 1Gb card maxes out an 8-bit pci-e
>     slot, so I
>     don't
>
>
> You mean an x8 pci-e slot? A dual 1gbps card does not max that out :
>
> http://en.wikipedia.org/wiki/List_of_device_bit_rates#Computer_buses
>
> pci-e 1.0 x8 = 2GB/s
> 2.0 x8 = 4GB/s
> 3.0 x8 = 7.88GB/s
Yeah, that's why I followed up with advice to look it up.. think it was 
the x4 that ws
maxed out.. dual 1Gb x full duplex = 4Gb...

Thanks for looking it up and clarifying...




More information about the Linux-PowerEdge mailing list