Re: [uml-user] UML tuntap throughput problem

2005-01-31 Thread Jason Clark
Look for the libpcap ringbuffer patch if you are having too many dropped packets. generic libpcap starts dropping packets at about 50mb per second, with the ringbuffer patch (should be able to find it on google) it scales much higher. Jason The place where you made your stand never matt

Re: [uml-user] UML tuntap throughput problem

2005-01-31 Thread Nuutti Kotivuori
Jeff Dike wrote: > [EMAIL PROTECTED] said: >> Something somewhere is buffering a few packets, and dropping the >> rest. When the transfer rate goes high enough and there's no >> physical interface to create delay, the buffer gets full and the >> majority of packets are discarded. However, no dropp

Re: [uml-user] UML tuntap throughput problem

2005-01-31 Thread Jeff Dike
[EMAIL PROTECTED] said: > Something somewhere is buffering a few packets, and dropping the rest. > When the transfer rate goes high enough and there's no physical > interface to create delay, the buffer gets full and the majority of > packets are discarded. However, no dropped counters rise on any

[uml-user] UML tuntap throughput problem

2005-01-31 Thread Nuutti Kotivuori
We have a throughput problem with two UML instances on the same machine, both using preconfigured tuntap devices. The problem appears both with a bridged setup and a routed setup. Our setup is very simple - two virtual machines on the same host, both have a preconfigured tap device, one virtual ma