bench: move random number generation outside the benchmarking loops

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Author: anandkaranubc

lib/node_modules/@stdlib/stats/base/dists/degenerate/mgf/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 mgf = require( './../lib' );
 // MAIN //
 
 bench( pkg, function benchmark( b ) {
+	var len;
 	var mu;
 	var t;
 	var y;
 	var i;
 
+	len = 100;
+	t = new Float64Array( len );
+	mu = new Float64Array( len );
+	for ( i = 0; i < len; i++ ) {
+		t[ i ] = uniform( -100.0, 0.0 );
+		mu[ i ] = uniform( -50.0, 50.0 );
+	}
+
 	b.tic();
 	for ( i = 0; i < b.iterations; i++ ) {
-		t = uniform( -100.0, 0.0 );
-		mu = uniform( -50.0, 50.0 );
-		y = mgf( t, mu );
+		y = mgf( t[ i % len ], mu[ i % len ] );
 		if ( isnan( y ) ) {
 			b.fail( 'should not return NaN' );
 		}
@@ -55,18 +62,23 @@ bench( pkg, function benchmark( b ) {
 
 bench( pkg+':factory', function benchmark( b ) {
 	var mymgf;
+	var len;
 	var mu;
 	var t;
 	var y;
 	var i;
 
 	mu = 40.0;
 	mymgf = mgf.factory( mu );
+	len = 100;
+	t = new Float64Array( len );
+	for ( i = 0; i < len; i++ ) {
+		t[ i ] = uniform( 0.0, 100.0 );
+	}
 
 	b.tic();
 	for ( i = 0; i < b.iterations; i++ ) {
-		t = randu() * 100.0;
-		y = mymgf( t );
+		y = mymgf( t[ i % len ] );
 		if ( isnan( y ) ) {
 			b.fail( 'should not return NaN' );
 		}