bench: use banded matrix

---
type: pre_commit_static_analysis_report
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---

Author: Shabareesh Shetty

lib/node_modules/@stdlib/blas/base/dgbmv/benchmark/benchmark.js

@@ -21,6 +21,8 @@
 // MODULES //
 
 var bench = require( '@stdlib/bench' );
+var filled2dBy = require( '@stdlib/array/base/banded/filled2d-by' );
+var discreteUniform = require( '@stdlib/random/base/discrete-uniform' );
 var uniform = require( '@stdlib/random/array/uniform' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var pow = require( '@stdlib/math/base/special/pow' );
@@ -48,7 +50,7 @@ var options = {
 function createBenchmark( N ) {
 	var x = uniform( N, -10.0, 10.0, options );
 	var y = uniform( N, -10.0, 10.0, options );
-	var A = uniform( N*N, -10.0, 10.0, options );
+	var A = filled2dBy( [ 10, 10 ], 2, 2, NaN, discreteUniform.factory( -10, 10 ) );
 	return benchmark;
 
 	/**

lib/node_modules/@stdlib/blas/base/dgbmv/benchmark/benchmark.ndarray.js

@@ -21,6 +21,8 @@
 // MODULES //
 
 var bench = require( '@stdlib/bench' );
+var filled2dBy = require( '@stdlib/array/base/banded/filled2d-by' );
+var discreteUniform = require( '@stdlib/random/base/discrete-uniform' );
 var uniform = require( '@stdlib/random/array/uniform' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var pow = require( '@stdlib/math/base/special/pow' );
@@ -48,7 +50,7 @@ var options = {
 function createBenchmark( N ) {
 	var x = uniform( N, -10.0, 10.0, options );
 	var y = uniform( N, -10.0, 10.0, options );
-	var A = uniform( N*N, -10.0, 10.0, options );
+	var A = filled2dBy( [ 10, 10 ], 2, 2, NaN, discreteUniform.factory( -10, 10 ) );
 	return benchmark;
 
 	/**