Re: lmbench lat_mmap slowdown with CONFIG_PARAVIRT

[Ingo Molnar]

* Ingo Molnar <mingo@xxxxxxx> wrote:

> That shows the expected $cache risks here as well: i ran this on an 
> Extreme Edition CPU which has a ton of L2 cache [4MB] which mutes L2 
> $cache misses quite a bit.

[ there's no such thing as "L2 $cache misses" - what i wanted to say is 
  that while the instruction cache size is rather small and static, a
  large L2 cache helps in keeping the costs of instruction-cache misses
  low - hence my measurement skews in favor of paravirt. ]

	Ingo
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