reed-solomon - npm Package Compare versions

Comparing version 1.1.1 to 1.1.2

benchmark.js

@@ -20,51 +20,66 @@ var ReedSolomon = require('./index.js');
 console.log('\nReedSolomon(' + dataShards + ', ' + parityShards + '):');
-var binding = ReedSolomon.bindingNative ? 'Native' : 'Javascript';
-console.log('Binding: ' + binding);
 console.log('');
 
-var encodingResults = [];
-var decodingResults = [];
+var bindings = [];
+if (ReedSolomon.bindingNative) bindings.push(ReedSolomon.bindingNative);
+bindings.push(ReedSolomon.bindingJS);
 
-// Benchmark several runs of encoding and decoding.
-var times = 5;
-while (times--) {
-  // Encode:
-  var now = Date.now();
-  var reedSolomon = new ReedSolomon(dataShards, parityShards);
-  reedSolomon.encode(shards, 0, shardSize);
-  var elapsed = (Date.now() - now) / 1000;
-  var encoded = dataShards * shardSize / (1024* 1024);
-  var rate = 1 / elapsed * encoded;
-  encodingResults.push('Encode: ' + rate.toFixed(2) + ' MB/s');
-  // Decode:
-  var now = Date.now();
-  var reedSolomon = new ReedSolomon(dataShards, parityShards);
-  var shardsPresent = new Array(totalShards);
-  var length = totalShards;
-  while (length--) shardsPresent[length] = true;
-  shards[0] = new Buffer(shardSize);
-  shardsPresent[0] = false;
-  shards[1] = new Buffer(shardSize);
-  shardsPresent[1] = false;
-  shards[totalShards - 1] = new Buffer(shardSize);
-  shardsPresent[totalShards - 1] = false;
-  reedSolomon.decode(shards, 0, shardSize, shardsPresent);
-  var elapsed = (Date.now() - now) / 1000;
-  var decoded = dataShards * shardSize / (1024* 1024);
-  var rate = 1 / elapsed * decoded;
-  decodingResults.push('Decode: ' + rate.toFixed(2) + ' MB/s');
-}
+bindings.forEach(
+  function(binding) {
+    if (binding === undefined) throw new Error('Binding not defined.');
+    if (binding === ReedSolomon.bindingNative) {
+      var bindingName = 'Native';
+    } else {
+      var bindingName = 'Javascript';
+    }
+    console.log('Binding: ' + bindingName);
+    console.log('');
 
-// Group the encoding and decoding results:
-encodingResults.forEach(
-  function(encodingResult) {
-    console.log(encodingResult);
+    var encodingResults = [];
+    var decodingResults = [];
+
+    // Benchmark several runs of encoding and decoding.
+    var times = 5;
+    while (times--) {
+      // Encode:
+      var now = Date.now();
+      var reedSolomon = new ReedSolomon(dataShards, parityShards, binding);
+      reedSolomon.encode(shards, 0, shardSize);
+      var elapsed = (Date.now() - now) / 1000;
+      var encoded = dataShards * shardSize / (1024* 1024);
+      var rate = 1 / elapsed * encoded;
+      encodingResults.push('Encode: ' + rate.toFixed(2) + ' MB/s');
+      // Decode:
+      var now = Date.now();
+      var reedSolomon = new ReedSolomon(dataShards, parityShards, binding);
+      var shardsPresent = new Array(totalShards);
+      var length = totalShards;
+      while (length--) shardsPresent[length] = true;
+      shards[0] = new Buffer(shardSize);
+      shardsPresent[0] = false;
+      shards[1] = new Buffer(shardSize);
+      shardsPresent[1] = false;
+      shards[totalShards - 1] = new Buffer(shardSize);
+      shardsPresent[totalShards - 1] = false;
+      reedSolomon.decode(shards, 0, shardSize, shardsPresent);
+      var elapsed = (Date.now() - now) / 1000;
+      var decoded = dataShards * shardSize / (1024* 1024);
+      var rate = 1 / elapsed * decoded;
+      decodingResults.push('Decode: ' + rate.toFixed(2) + ' MB/s');
+    }
+
+    // Group the encoding and decoding results:
+    encodingResults.forEach(
+      function(encodingResult) {
+        console.log(encodingResult);
+      }
+    );
+    console.log('');
+    decodingResults.forEach(
+      function(decodingResult) {
+        console.log(decodingResult);
+      }
+    );
+    console.log('');
   }
 );
-console.log('');
-decodingResults.forEach(
-  function(decodingResult) {
-    console.log(decodingResult);
-  }
-);
-console.log('');

package.json

 {
   "name": "reed-solomon",
-  "version": "1.1.1",
+  "version": "1.1.2",
   "description": "Reed-Solomon erasure coding in pure Javascript",
@@ -5,0 +5,0 @@ "main": "index.js",

README.md

@@ -16,8 +16,6 @@ # reed-solomon
 ## Performance
-`reed-solomon` includes a Javascript binding as well as an optional native binding (and simple benchmark):
+`reed-solomon` includes a Javascript binding as well as an optional native binding:
 ```
-ReedSolomon(17, 3)
+ReedSolomon(17, 3) [1,8 GHz Intel Core i5]:
 
-1,8 GHz Intel Core i5
-
 Binding: Native
@@ -34,4 +32,4 @@
 
-## Optional Native Binding
-The native binding will be installed by default when installing `reed-solomon`, and the Javascript binding will be used if the native binding could not be compiled. To compile the native binding manually, install [node-gyp](https://www.npmjs.com/package/node-gyp) globally:
+## Native Binding (Optional)
+The native binding will be installed automatically when installing `reed-solomon`, and the Javascript binding will be used if the native binding could not be compiled. To compile the native binding manually, install [node-gyp](https://www.npmjs.com/package/node-gyp) globally:
 ```
@@ -104,5 +102,12 @@ sudo npm install node-gyp -g
 `reed-solomon` ships with extensive tests, including a long-running fuzz test.
+
+To test the native and Javascript bindings:
 ```
-cd node-modules/reed-solomon
 node test.js
 ```
+
+## Benchmark
+To benchmark the native and Javascript bindings:
+```
+node benchmark.js
+```

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Improved metrics

Total package byte prevSize

58877

increased by1.09%

Lines of code

1431

increased by0.92%

Number of lines in readme file

111

increased by4.72%

No dependency changes