Re: agg profiling

by Petr Kobalíček :: Rate this Message:

Hi Christof,

intepolation is good idea, but do you think that this will be faster
and more accurate than the SSE2 source code I posted the link to? They
say that that function can calculate sincos() in ~20 cycles (4 in
parallel). I think that 20 cycles is very good, because normally this
takes up to ~150 to ~300 cycles on today CPUs. I need time to
experiment with this, currently I have deadline with my thesis, so not
too much time:)

2009/5/16 Christof Schardt <csnews@...>:

>>> What about a lookup table for stuff like that? Somewhere I've heard of
>>> people doing that, though I don't recall exactly how they set it up.
>
>>I don't like lookup tables :-)) Problem with lookup tables here is
>>that how big it must be to give good results?
>
> And what's about lookup and interpolation?
>
> Christof
>
>
>
>
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