Re: Default cache_hot_time value back to 10ms

[Nick Piggin]

Andrew Morton wrote:
> "Chen, Kenneth W" <kenneth.w.chen@xxxxxxxxx> wrote:
>
> > This value was default to 10ms before domain scheduler, why does domain
> > scheduler need to change it to 2.5ms? And on what bases does that decision
> > take place?  We are proposing change that number back to 10ms.
>
>
> It sounds like this needs to be runtime tunable?

I'd say it is probably too low level to be a useful tunable (although
for testing I guess so... but then you could have *lots* of parameters
tunable).

I don't think there was a really good reason why this value is 2.5ms.
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