[Click] e1000 82541GI performance issue

[Adam Greenhalgh]

http://www.mail-archive.com/netdev@vger.kernel.org/thrd3.html#03951

This thread on the driver may be of help.

On 12/15/05, can can <leo_de_rosa at hotmail.com> wrote:
> Hi,
>
> I've tested click performance on intel xeon 3.0GHz processor and intel e1000
> 82541GI
>
> ethernet controller. Click version 4.3.15 does not support my 82541GI
> controller.
>
> There's a  E1000 5.7.6 driver in cvs  so i've tested it with currently
> driver in
>
> cvs. My linux kernel version is 2.4.26  and current  driver in cvs, when i
> try to
>
> install ethernet driver with insmod,  gives unresolved symbol error for
>
> "local_save_flags" and i tried Alessio'S solution ( @
>
> "https://amsterdam.lcs.mit.edu/pipermail/click/2005-November/004410.html" )
> it seems
>
> it works.
>
>
> I've used these two simple configurations
>
> FromDevice(eth0)->SimpleQueue(10000)->ToDevice(eth1)
> and
> pollDevice(eth0)->SimpleQueue(10000)->ToDevice(eth1)
>
>
> with FromDevice it gives 300.000pps at max, and with PollDevice it gives
> 375.000
>
> with packet loss. Actually packet loss appears even at small packet rate
> about
>
> 100.000pps with polldevice, and  interface statistics shows that  many
> overruns occures with polling.
>
> on a similar platform , it is said that "click has achieved loss-free
> throughput of
>
> 737 Kpackets/sec running uniprocessor- dual Intel Xeon 2.80 GHz (with
> HyperThreading
> disabled)- Intel E7501 chipset motherboard with a 533 MHz FSB and four PCI-X
> slots,-
>
> four Intel 88544EI Gigabit ethernet cards, two of them plugged in "
> (https://amsterdam.lcs.mit.edu/pipermail/click/2005-February/003594.html)
>
> Do you have any idea about that? I think there is something wrong with
> ethernet polling driver.
> and one more question  can click handle up to 435,000 pps   without loss  or
> with loss?
>
> Best Regards...
> Leonardo
>
> _________________________________________________________________
> Hem e-postalarinizi, hem de Bilgisayarinizi MSN Güvenlik ile koruma altina
> alin! http://www.msn.com.tr/security/
>
> _______________________________________________
> click mailing list
> click at amsterdam.lcs.mit.edu
> https://amsterdam.lcs.mit.edu/mailman/listinfo/click
>