[Click] e1000 82541GI performance issue
can can
leo_de_rosa at hotmail.com
Thu Dec 15 14:45:33 EST 2005
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
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