em0 NIC slow on 8.2-p1 amd64?
Michael W. Lucas
mwlucas at blackhelicopters.org
Fri Jul 22 20:26:36 UTC 2011
On Fri, Jul 22, 2011 at 04:15:11PM -0400, Mike Tancsa wrote:
> On 7/22/2011 4:10 PM, Michael W. Lucas wrote:
> >
> >
> > 3.65 419155.4
>
> Thats 400Mb/s no ? Whats the CPU in this thing ? Also your NIC version
> was 7.1.9. RELENG_8 has 7.2.3. Can you try that version if possible ?
<facepalm> I sit corrected, decimal point error. My apologies, long
day here.
For the CPU, 400Mbs isn't bad.
CPU: Intel(R) Celeron(R) CPU 420 @ 1.60GHz (1600.01-MHz K8-class CPU)
Origin = "GenuineIntel" Id = 0x10661 Family = 6 Model = 16 Stepping = 1
Features=0xafebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,TM,PBE>
Features2=0xe31d<SSE3,DTES64,MON,DS_CPL,TM2,SSSE3,CX16,xTPR,PDCM>
AMD Features=0x20100800<SYSCALL,NX,LM>
AMD Features2=0x1<LAHF>
TSC: P-state invariant
My ~30MB/s from applications is roughly 240Mb/s.
Will applications such as NFS cut bandwith usage that much?
I'll try the newer driver.
> > So no, I'm not saturating this network. Not even close. I have a
> > machine with a 100Mbs vr0 that can spit out twice that much.
>
> How could FastE nics do 800Mb/s ?
Same decimal point error. It's clearly time for me go home.
Thanks,
==ml
--
Michael W. Lucas
http://www.MichaelWLucas.com/, http://blather.MichaelWLucas.com/
Latest book: Network Flow Analysis http://www.networkflowanalysis.com/
mwlucas at BlackHelicopters.org, Twitter @mwlauthor
More information about the freebsd-questions
mailing list