[Cialug] OT: Gigabit speeds (was Gigabit NICs)

[Nathan C. Smith]

Thanks.  And thank goodness!

-Nate

> -----Original Message-----
> From: Aaron Porter [mailto:atporter at gmail.com] 
> Sent: Tuesday, November 14, 2006 1:29 PM
> To: Central Iowa Linux Users Group
> Subject: Re: [Cialug] OT: Gigabit speeds (was Gigabit NICs)
> 
> 
> On 11/14/06, Nathan C. Smith <smith at ipmvs.com> wrote:
> > I wonder if you could ever really approach a gigabit from 
> any machine. 
> > Anybody have any concrete data?
> 
> I snagged a few hosts from the queue, but couldn't shutdown 
> the cluster run, so these numbers are from a live network. I 
> used the netpipe-tcp package from Debian Etch with default options.
> 
> Intel(R) XEON(TM) CPU 2.20GHz <-> Intel(R) XEON(TM) CPU 2.20GHz
> 123: 8388611 bytes      3 times -->    894.15 Mbps in   71576.48 usec
> 
> lspci -v:
> 0000:03:07.1 Ethernet controller: Intel Corporation 82546EB 
> Gigabit Ethernet Controller (Copper) (rev 01)
>         Subsystem: Intel Corporation: Unknown device 3416
>         Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 193
>         Memory at feae0000 (64-bit, non-prefetchable) [size=128K]
>         I/O ports at 2000 [size=64]
>         Capabilities: [dc] Power Management version 2
>         Capabilities: [e4]      Capabilities: [f0] Message Signalled
> Interrupts: 64bit+ Queue=0/0 Enable-
> 
> AMD Opteron(tm) Processor 246 <-> AMD Opteron(tm) Processor 246
> 123: 8388611 bytes      3 times -->    896.79 Mbps in   71365.99 usec
> 
> lspci -v:
> 0000:01:02.1 Ethernet controller: Broadcom Corporation 
> NetXtreme BCM5704 Gigabit Ethernet (rev 03)
>         Subsystem: Broadcom Corporation NetXtreme BCM5704 
> Gigabit Ethernet
>         Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 185
>         Memory at fc8f0000 (64-bit, non-prefetchable) [size=64K]
>         Memory at fc8e0000 (64-bit, non-prefetchable) [size=64K]
>         Capabilities: [40]      Capabilities: [48] Power 
> Management version 2
>         Capabilities: [50] Vital Product Data
>         Capabilities: [58] Message Signalled Interrupts: 
> 64bit+ Queue=0/3 Enable- 
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