benchmark: fix configuation parameters

The benchmark runner spawns new processes for each configuration. The
specific configuration is transfered by process.argv. This means that
the values have to be parsed. As of right now only numbers and strings
are parsed correctly. However other values such as objects where used.

This fixes the benchmarks that used non-string/number values and
prevents future issues by asserting the type.

PR-URL: https://github.com/nodejs/node/pull/5177
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Rod Vagg <rod@vagg.org>

benchmark/assert/deepequal-prims-and-objs-big-array.js

@@ -1,22 +1,25 @@
 'use strict';
 var common = require('../common.js');
 var assert = require('assert');
+
+const primValues = {
+  'null': null,
+  'undefined': undefined,
+  'string': 'a',
+  'number': 1,
+  'boolean': true,
+  'object': { 0: 'a' },
+  'array': [1, 2, 3],
+  'new-array': new Array([1, 2, 3])
+};
+
 var bench = common.createBenchmark(main, {
-  prim: [
-    null,
-    undefined,
-    'a',
-    1,
-    true,
-    {0: 'a'},
-    [1, 2, 3],
-    new Array([1, 2, 3])
-  ],
+  prim: Object.keys(primValues),
   n: [25]
 });
 
 function main(conf) {
-  var prim = conf.prim;
+  var prim = primValues[conf.prim];
   var n = +conf.n;
   var primArray;
   var primArrayCompare;

benchmark/assert/deepequal-prims-and-objs-big-loop.js

@@ -1,22 +1,25 @@
 'use strict';
 var common = require('../common.js');
 var assert = require('assert');
+
+const primValues = {
+  'null': null,
+  'undefined': undefined,
+  'string': 'a',
+  'number': 1,
+  'boolean': true,
+  'object': { 0: 'a' },
+  'array': [1, 2, 3],
+  'new-array': new Array([1, 2, 3])
+};
+
 var bench = common.createBenchmark(main, {
-  prim: [
-    null,
-    undefined,
-    'a',
-    1,
-    true,
-    {0: 'a'},
-    [1, 2, 3],
-    new Array([1, 2, 3])
-  ],
+  prim: Object.keys(primValues),
   n: [1e5]
 });
 
 function main(conf) {
-  var prim = conf.prim;
+  var prim = primValues[conf.prim];
   var n = +conf.n;
   var x;
 

benchmark/buffers/buffer-read.js

@@ -2,7 +2,7 @@
 var common = require('../common.js');
 
 var bench = common.createBenchmark(main, {
-  noAssert: [false, true],
+  noAssert: ['false', 'true'],
   buffer: ['fast', 'slow'],
   type: ['UInt8', 'UInt16LE', 'UInt16BE',
          'UInt32LE', 'UInt32BE',

benchmark/buffers/buffer-tostring.js

@@ -3,13 +3,13 @@
 const common = require('../common.js');
 
 const bench = common.createBenchmark(main, {
-  arg: [true, false],
+  arg: ['true', 'false'],
   len: [0, 1, 64, 1024],
   n: [1e7]
 });
 
 function main(conf) {
-  const arg = conf.arg;
+  const arg = conf.arg === 'true';
   const len = conf.len | 0;
   const n = conf.n | 0;
   const buf = Buffer(len).fill(42);

benchmark/buffers/buffer-write.js

@@ -1,7 +1,7 @@
 'use strict';
 var common = require('../common.js');
 var bench = common.createBenchmark(main, {
-  noAssert: [false, true],
+  noAssert: ['false', 'true'],
   buffer: ['fast', 'slow'],
   type: ['UInt8', 'UInt16LE', 'UInt16BE',
          'UInt32LE', 'UInt32BE',

benchmark/common.js

@@ -152,6 +152,10 @@ Benchmark.prototype._run = function() {
     var j = 0;
     set.forEach(function(s) {
       vals.forEach(function(val) {
+        if (typeof val !== 'number' && typeof val !== 'string') {
+          throw new TypeError(`configuration "${key}" had type ${typeof val}`);
+        }
+
         newSet[j++] = s.concat(key + '=' + val);
       });
     });