benchmark.struct-arrays: new benchmark to measure performance of struct-arrays, struct classes, and floating point math

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Slava Pestov 2009-08-28 05:21:54 -05:00
parent d957ae4e44
commit 624f636533
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! Copyright (C) 2009 Slava Pestov.
! See http://factorcode.org/license.txt for BSD license.
USING: accessors classes.struct combinators.smart fry kernel
math math.functions math.order math.parser sequences
struct-arrays hints io ;
IN: benchmark.struct-arrays
STRUCT: point { x float } { y float } { z float } ;
: xyz ( point -- x y z )
[ x>> ] [ y>> ] [ z>> ] tri ; inline
: change-xyz ( point obj x: ( x obj -- x' ) y: ( y obj -- y' ) z: ( z obj -- z' ) -- point )
tri-curry [ change-x ] [ change-y ] [ change-z ] tri* ; inline
: init-point ( n point -- n )
over >fixnum >float
[ sin >>x ] [ cos 3 * >>y ] [ sin sq 2 / >>z ] tri drop
1 + ; inline
: make-points ( len -- points )
point <struct-array> dup 0 [ init-point ] reduce drop ; inline
: point-norm ( point -- norm )
[ xyz [ absq ] tri@ ] sum-outputs sqrt ; inline
: normalize-point ( point -- )
dup point-norm [ / ] [ / ] [ / ] change-xyz drop ; inline
: normalize-points ( points -- )
[ normalize-point ] each ; inline
: max-point ( point1 point2 -- point1 )
[ x>> max ] [ y>> max ] [ z>> max ] change-xyz ; inline
: <zero-point> ( -- point )
0 0 0 point <struct-boa> ; inline
: max-points ( points -- point )
<zero-point> [ max-point ] reduce ; inline
: print-point ( point -- )
[ xyz [ number>string ] tri@ ] output>array ", " join print ; inline
: struct-array-benchmark ( len -- )
make-points [ normalize-points ] [ max-points ] bi print-point ;
HINTS: struct-array-benchmark fixnum ;
: main ( -- ) 5000000 struct-array-benchmark ;
MAIN: main