[PATCH] update irq affinity mask when migrating irqs
olof at austin.ibm.com
Wed Mar 9 10:43:54 EST 2005
On Tue, Mar 08, 2005 at 11:20:33AM -0600, Joel Schopp wrote:
> The downside of calling this is it increases the path length and causes
> ibm_get_xive to be called again. Usually slightly slower is a fine
> tradeoff for more readable code, but in this case I would have left it
> how it was. With all the cpus stopped it is best to be as fast as
Is CPU removal really that performance critical a path? How long does
a ibm_get_xive call take?
> possible. Maybe this is still fast enough, but you'd have to test under
> heavy load on a variety of systems to be sure.
Please define "fast enough".
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