-! Copyright (c) 2007 Aaron Schaefer.
+! Copyright (c) 2007, 2008 Aaron Schaefer.
! See http://factorcode.org/license.txt for BSD license.
-USING: continuations fry io kernel make math math.functions math.parser
- math.statistics memory tools.time ;
+USING: combinators.smart formatting io kernel math math.functions
+math.statistics memory sequences tools.time ;
IN: project-euler.ave-time
-: collect-benchmarks ( quot n -- seq )
- [
- [ datastack ]
- [ '[ _ gc benchmark , ] tuck '[ _ _ with-datastack drop ] ]
- [ 1- ] tri* swap times call
- ] { } make ; inline
-
-: nth-place ( x n -- y )
- 10 swap ^ [ * round ] keep / ;
+MACRO: collect-benchmarks ( quot n -- seq )
+ swap '[ _ [ [ [ _ nullary ] preserving ] gc benchmark 6 10^ / ] replicate ] ;
: ave-time ( quot n -- )
- [ collect-benchmarks ] keep swap
- [ std 2 nth-place ] [ mean round ] bi [
- # " ms ave run time - " % # " SD (" % # " trials)" %
- ] "" make print flush ; inline
+ [
+ collect-benchmarks
+ [ mean round >integer ]
+ [ std ] bi
+ ] keep
+ "%d ms ave run time - %.2f SD (%d trials)\n" printf flush ; inline