Measuring performance of different implementations in an xUnit-style way.
use util\profiling\{Measure, Measurable};
class Iteration extends Measurable {
#[Measure]
public function strpos() {
return false === ($p= strpos('abc.', '.')) ? -1 : $p;
}
#[Measure]
public function strcspn() {
return 4 === ($p= strcspn('abc.', '.')) ? -1 : $p;
}
}Running:
$ xp measure -1000000 Demo
strpos: 1000000 iteration(s), 0.308 seconds, result= 3
strcspn: 1000000 iteration(s), 0.350 seconds, result= 3use util\profiling\{Measure, Measurable, Values};
class Demo extends Measurable {
#[Measure, Values(['', '.', '.a', 'a.', 'a.b'])]
public function strpos($fixture) {
return false === ($p= strpos($fixture, '.')) ? -1 : $p;
}
#[Measure, Values(['', '.', '.a', 'a.', 'a.b'])]
public function strcspn($fixture) {
return strlen($fixture) === ($p= strcspn($fixture, '.')) ? -1 : $p;
}
}Running:
$ xp measure -1000000 Demo
strpos(""): 1000000 iteration(s), 0.534 seconds, result= -1
strpos("."): 1000000 iteration(s), 0.527 seconds, result= 0
strpos(".a"): 1000000 iteration(s), 0.523 seconds, result= 0
strpos("a."): 1000000 iteration(s), 0.531 seconds, result= 1
strpos("a.b"): 1000000 iteration(s), 0.541 seconds, result= 1
strcspn(""): 1000000 iteration(s), 0.633 seconds, result= -1
strcspn("."): 1000000 iteration(s), 0.617 seconds, result= 0
strcspn(".a"): 1000000 iteration(s), 0.622 seconds, result= 0
strcspn("a."): 1000000 iteration(s), 0.605 seconds, result= 1
strcspn("a.b"): 1000000 iteration(s), 0.613 seconds, result= 1