Re: State of the Linux PCI and PCI Hotplug Subsystems for2.6.16-rc5

[David S. Miller]

From: Lee Revell <rlrevell@xxxxxxxxxxx>
Date: Thu, 09 Mar 2006 15:52:35 -0500

> Ubuntu doesn't provide a UP 686 kernel?
> 
> Isn't there a performance hit running an SMP kernel on UP?

There is some cost, but it is mitigated by a patch they include
which nops out all the spinlocks when a UP system is detected.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/