Re: KVM, virtualized interface, dropped packets.

[Van <van-1@xxxxxxxxx>]

This massage can appear if you try to apply command to bridge for example. maybe you should apply comman on one of real iface or sysctl

http://www.cyberciti.biz/faq/linux-tcp-tuning/

 

18.07.2013, 12:49, "Rafał Radecki" <radecki.rafal@xxxxxxxxx>:

Hi All.

 

I have currently a small problem to solve. I have a kvm virtual machine which in output of

ifconfig eth0 | egrep 'RX packets|TX packets'

          RX packets:792681304 errors:0 dropped:560728 overruns:0 frame:0

          TX packets:716661674 errors:0 dropped:0 overruns:0 carrier:0

show dropped packets. I think that rx buffer is to small (no strange messagess in dmesg) and would like to make it larger. But when I try a solution from 

http://www.scottalanmiller.com/linux/2011/06/20/working-with-nic-ring-buffers/

I get:

ethtool -g eth0 

Ring parameters for eth0:

Cannot get device ring settings: Operation not supported

 

So what is the proper way to make rx buffers larger in this situation?

 

Best regards,

Rafal Radecki.

,

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