Re: [Xen-devel] Re: Serious performance issues

["B.G. Bruce" <bgb@xxxxxxxxx>]

Can you do a "lspci -v" as root and see if there is any correlation
between your network adapters and your usb devices?  (same interrupt) or
something.

Thanks,
B.



On Mon, 2005-03-07 at 15:19, Nuutti Kotivuori wrote:
> Tommi Virtanen wrote:
> > Problem #2: bridge setfd/sethello 0 causes timer interrupt storm,
> > but does not degrade performance significantly. Workaround is to not
> > set such low numbers. Will talk to brctl/bridging maintainers to
> > make it more foolproof.
> 
> This is really odd. We run a lot of bridges with such settings. Or, to
> be specific, for us, 'setfd' is always 0, 'setageing' is either 0 or
> 300, depending if we want the bridge to act as a 'hub' or not. STP is
> always off.
> 
> Under these circumstances, we have never seen a timer interrupt
> storm. But perhaps it is particular to having STP on.
> 
> -- Naked
> 
> 
> 
> 
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