Re: [RFC] Convert pgtable cache to slab

David Mosberger
2004-10-14T11:00:02Z

>>>>> On Thu, 14 Oct 2004 03:27:42 -0700, William Lee Irwin III <wli@holomorphy.com> said:

wli> At some point in the comment, I wrote:
William> Nice! I got reports that it would not be beneficial when I
William> thought about going over this earlier. I suppose it's a
William> small vindication of my methods to see the original
William> objection contradicted here. =)

wli> On Thu, Oct 14, 2004 at 12:44:59AM -0700, David Mosberger
wli> wrote:
>> What was the original comment relative to? 2.4 or 2.6? In 2.6
>> we lost the PTE quick-list, which I think is where the big
>> overhead came from. Right, Martin?

wli> I don't recall much of the original comment, apart from that
wli> someone said it had too much overhead. I may have presumed too
wli> much when I presumed it was 2.6

OK, I don't think it was me, then.

I do suspect the quick-list would be faster than slab but the
difference is most likely in the noise and you can't argue with the
code-size reduction.

--david