Re: faster representation of pow on some áreas of subsurface?

[Tomaz Canabrava]

dunno about the patch, never got into my branch :)



On Sun, Jan 19, 2014 at 6:00 PM, Linus Torvalds <
torvalds at linux-foundation.org> wrote:

> On Sun, Jan 19, 2014 at 11:29 AM, Tomaz Canabrava <tcanabrava at kde.org>
> wrote:
> >
> > I'v replaced the pow() call with the fastPow() that I found on the
> internet
> > and it got *way* snappyer.
>
> Yeah, no, that doesn't work. The error is too big, and it only works
> on little-endian anyway. Ok, so we probably don't care about anything
> else, but it's fragile.
>
> That said, what the heck happened to my patch that caches the value of
> "pow()" in add_segment()? That gets the math right *and* it sped
> things up quite a bit.
>
> I'll search for my patch and re-send.
>
>                  Linus
>
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