Re: Performance with ethernet channel bonding

From: Andi Kleen (ak@suse.de)
Date: Fri Aug 25 2000 - 18:11:23 EST


> - Would the channel bonding code send the packets out of order [to cause
> the problem you describe]?

Yes it does, it is inherent in the algorithm it uses.

If you don't believe me just send a stream of UDP packets with a sequence number
and plot the result.

> - I thought about packet drops as well, perhaps an SMP race condition?
> We've noted that the error counts from ifconfig don't increment until a
> slight increase at the end of the run, so it's not counting the problems if
> they do occur. [had 22 overruns recorded after >1.5M packets transmitted &
> received without any overruns! Overruns on one machine only, not both.]

I doubt it is the problem.

You of course made the TCP window big enough ?

-Andi
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