Re: 2.4.23aa2 (bugfixes and important VM improvements for the highend)

[Andi Kleen]

Ingo Molnar <mingo@xxxxxxx> writes:

> but i'm quite strongly convinced that 'getting rid' of the 'pte chain
> overhead' in favor of questionable lowmem space gains for a dying
> (high-end server) platform is very shortsighted. [getting rid of them
> for purposes of the 64-bit platforms could be OK, but the argumentation
> isnt that strong there i think.]

pte chain locking seems to be still quite far up in profile logs of
2.6 on x86-64 for common workloads. It's nonexistent in mainline
2.4. I would consider this a strong reason to do something about that.

-Andi

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