Help / Release / J 6.02 / m} and u} Improved
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m}y Improved |
initial writing: 2007-02-04 |
The monads m}y and u}y have been made faster and leaner. The following benchmark demonstrate the improvement:
b=: 1e6 ?@$ 2
i=: 1e6 ?@$ 3
y=: '.' ,~ '_',:~ 1e6$'dazlious '
u=: ' '&=@{.
ts=: 6!:2, 7!:2@] NB. time and space
ts 'Expression'
| Expression | J 6.02 | J 6.01 | Ratio | |||||||||
| b}y | 0.0175358 | 1.04934e6 | 0.0320888 | 9.43795e6 | 1.83 | 8.99 | ||||||
| i}y | 0.0059477 | 1.04934e6 | 0.0278570 | 5.24365e6 | 4.68 | 5.00 | ||||||
| u}y | 0.0163063 | 2.09798e6 | 0.0368750 | 1.04866e7 | 2.26 | 5.00 | ||||||