bench: move random number generation outside the benchmarking loops

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Author: anandkaranubc

lib/node_modules/@stdlib/stats/base/dists/arcsine/mean/benchmark/benchmark.js

@@ -21,7 +21,7 @@
 // MODULES //
 
 var bench = require( '@stdlib/bench' );
-var randu = require( '@stdlib/random/base/randu' );
+var Float64Array = require( '@stdlib/array/float64' );
 var uniform = require( '@stdlib/random/base/uniform' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var pkg = require( './../package.json' ).name;
@@ -31,16 +31,23 @@ var mean = require( './../lib' );
 // MAIN //
 
 bench( pkg, function benchmark( b ) {
+	var len;
 	var min;
 	var max;
 	var y;
 	var i;
 
+	len = 100;
+	min = new Float64Array( len );
+	max = new Float64Array( len );
+	for ( i = 0; i < len; i++ ) {
+		min[ i ] = uniform( 0.0, 10.0 );
+		max[ i ] = uniform( min[ i ], min[ i ] + 10.0 );
+	}
+
 	b.tic();
 	for ( i = 0; i < b.iterations; i++ ) {
-		min = ( randu()*10.0 );
-		max = uniform( min, min + 10.0 );
-		y = mean( min, max );
+		y = mean( min[ i % len ], max[ i % len ] );
 		if ( isnan( y ) ) {
 			b.fail( 'should not return NaN' );
 		}

lib/node_modules/@stdlib/stats/base/dists/arcsine/mean/benchmark/benchmark.native.js

@@ -23,7 +23,6 @@
 var resolve = require( 'path' ).resolve;
 var bench = require( '@stdlib/bench' );
 var Float64Array = require( '@stdlib/array/float64' );
-var randu = require( '@stdlib/random/base/randu' );
 var uniform = require( '@stdlib/random/base/uniform' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var tryRequire = require( '@stdlib/utils/try-require' );
@@ -51,7 +50,7 @@ bench( pkg+'::native', opts, function benchmark( b ) {
 	min = new Float64Array( len );
 	max = new Float64Array( len );
 	for ( i = 0; i < len; i++ ) {
-		min[ i ] = ( randu()*10.0 );
+		min[ i ] = uniform( 0.0, 10.0 );
 		max[ i ] = uniform( min[ i ], min[ i ] + 10.0 );
 	}