Traffic between 2 interfaces

[maverick_slo]

WOW :)

[maverick_slo]

Even better (just tiiiny bit) when I enabled device polling :)

[stephenw10]

Wow better than expected or wow there still a big difference in send vs receive speed?  :P
What did you do to achieve that?

General advice is not to enable device polling unless you have a very good reason to do it. It will eat all your spare cpu cycles, sometime it slows the gui to a crawl.
640Mbps from an Atom is good though.  :)

Steve

[maverick_slo]

I`ve swapped em0 and em2.
em0 and em1 are onboard and em2 is on PCI slot.

Now em0 = WAN and em1=LAN and em2=LAN2

So traffic is "spread" across NICs on different BUSes :)

I think that did the trick.

Why in one direction is slower I dont know and I really dont know how to approch it :P

[stephenw10]

em1 is PCIe and em2 is PCI?

Anyway looks like problem solved.  :)

Steve

[maverick_slo]

em0 and em1 are onboard NICs and on PCIe BUS.
em2 is good old PCI :)

I still have a bunch of errors (missed packets) but speeds are good, somewhere or somewhat is lacking resources, but hey, I have 112 MByte/s transfer speed on same LAN and 50 Mbyte/s between LANs so I think is good :)

[maverick_slo]

Ta ta da ta taaaaaa :)

Figured it out :)

This mobo has something called: PCIe ASPM (http://en.wikipedia.org/wiki/Active_State_Power_Management)
Disabled it, set PowerD to hiadaptive (not sure if influences on NIC) and results are below.

Now DL/UL are virtually the same as far as Windows file copy is concerned :)

[stephenw10]

Ah, nice! Good find and good to know for future problems. I bet there's loads of people suffering from that.  :)

Steve

[maverick_slo]

I will change back LAN and LAN2 to em0 and em1 (because of better NIC quality) and leave WAN to em2 again :)
Will see what will happen :)

[maverick_slo]

Errors are gone now, transfer speeds up to: 70 Mbytes/s.

PCIe ASPM was to blame, hope it helps some one :)

Thanks stephenw10, I really appreciate it!