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SubjectRe: [PATCH 1/3] sysfs directory scaling: rbtree for dirent name lookups
On Tue, Nov 03, 2009 at 11:45:50AM -0500, Benjamin LaHaise wrote:
> On Tue, Nov 03, 2009 at 08:07:15AM -0800, Greg KH wrote:
> > But registering 20000 devices is a far different problem from using
> > those 20000 devices :)
>
> Registering 20,000 devices *is* a real world problem (I'm actually aiming
> for 100,000, as that's what roughly fits in a single 10Gbps link -- something
> that a mid range system can now route). When an edge router comes up from
> reboot, or after a link has been down, the rate at which customers connect
> is important -- too slow, and you get a pile of support calls from customers
> complaining that their connection is down. Because of the data structures
> used, there isn't even any improvement from an SMP system, so this needs
> to be addressed directly.

Ok, how long are we talking about here?

thanks,

greg k-h


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