RE: [PATCH] - Speed up boot - skip unnecessary clock calibration

From: Luck, Tony <tony.luck_at_intel.com>
Date: 2007-03-28 04:42:52
> Skip clock calibration if cpu being brought online is exactly the same
> speed, stepping, etc., as the previous cpu. This significantly reduces
> the time to boot very large systems. 

Do we scan through the cpus in a way that makes this really useful I.e.
pounding through the cpus on a node - which are likely to be the
same - before going on to the next node?  Just looking at the
previous cpu won't help as much if we scan "breadth-first".

-Tony
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Received on Wed Mar 28 04:43:44 2007

This archive was generated by hypermail 2.1.8 : 2007-03-28 04:44:00 EST