Re: calibrate_migration_costs takes ages on s390

[David S. Miller]

From: Ingo Molnar <mingo@xxxxxxx>
Date: Mon, 13 Feb 2006 11:54:21 +0100

> Do things get better if you fill out include/asm-sparc64/system.h's 
> sched_cacheflush() function, to flush the L2 cache? That should at least 
> make the cache state more or less reproducable across runs.

Yes, I tried to implement that, and it makes the migration cost
calculation take 4 to 5 times longer, so I'm leaving it unimplemented.
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