* buffer overruns
@ 2004-04-24 5:30 Ramesh Chaurasiya
2004-04-24 7:55 ` Ben Greear
0 siblings, 1 reply; 2+ messages in thread
From: Ramesh Chaurasiya @ 2004-04-24 5:30 UTC (permalink / raw)
To: netdev
Hi,
Whenever I try to receive traffic at more than 500 Mbps, many packets
are being dropped as shown in ifconfig. There are many overruns and errors
in Rx packets details of ifconfig. I am using Intel PRO 1000 Gigabit NIC,
linux 2.4.20-8smp and dual processsor Xeon Machine with a 32bit/33 MHz PCI
bus. What does this error means. Am I dropping packets at
NIC/driver/kernel buffers/application socket? What new hardware should I
use to overcome this. I am using latest e1000 drivers compiled with NAPI
support. Please help me out.
Thanks,
Ramesh.
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: buffer overruns
2004-04-24 5:30 buffer overruns Ramesh Chaurasiya
@ 2004-04-24 7:55 ` Ben Greear
0 siblings, 0 replies; 2+ messages in thread
From: Ben Greear @ 2004-04-24 7:55 UTC (permalink / raw)
To: Ramesh Chaurasiya; +Cc: netdev
Ramesh Chaurasiya wrote:
> Hi,
> Whenever I try to receive traffic at more than 500 Mbps, many packets
> are being dropped as shown in ifconfig. There are many overruns and errors
> in Rx packets details of ifconfig. I am using Intel PRO 1000 Gigabit NIC,
> linux 2.4.20-8smp and dual processsor Xeon Machine with a 32bit/33 MHz PCI
> bus. What does this error means. Am I dropping packets at
> NIC/driver/kernel buffers/application socket? What new hardware should I
> use to overcome this. I am using latest e1000 drivers compiled with NAPI
> support. Please help me out.
> Thanks,
> Ramesh.
Get a 64-bit PCI-X bus, and set the RxDescriptors and TxDescriptors
in the e1000 driver to 4096.
With that, I can get about 999Mbps rx + tx on two ports.
Ben
--
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc http://www.candelatech.com
^ permalink raw reply [flat|nested] 2+ messages in thread
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