2009-09-27 16:11:21 -04:00
										 
									 
								 
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								USING: alien.c-types sequences kernel math specialized-arrays
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								fry ;
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											2009-09-09 23:33:34 -04:00
										 
									 
								 
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								SPECIALIZED-ARRAY: int
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											2008-09-03 08:25:34 -04:00
										 
									 
								 
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								IN: benchmark.dawes
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								! Phil Dawes's performance problem
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											2008-12-03 07:21:02 -05:00
										 
									 
								 
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								: count-ones ( int-array -- n ) [ 1 = ] count ; inline
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											2008-09-03 08:25:34 -04:00
										 
									 
								 
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											2008-12-03 07:21:02 -05:00
										 
									 
								 
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								: make-int-array ( -- int-array )
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											2010-01-14 13:08:22 -05:00
										 
									 
								 
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								    120000 iota [ 255 bitand ] int-array{ } map-as ; inline
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											2008-09-03 08:25:34 -04:00
										 
									 
								 
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								: dawes-benchmark ( -- )
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											2009-09-09 23:33:34 -04:00
										 
									 
								 
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								    200 make-int-array '[ _ count-ones ] replicate drop ;
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											2008-09-03 08:25:34 -04:00
										 
									 
								 
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								MAIN: dawes-benchmark
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