Benchmark on inserts is pretty good as expected

benchmarks/inserts.js

@@ -0,0 +1,52 @@
+var Datastore = require('../lib/datastore')
+  , benchDb = 'workspace/insert.bench.db'
+  , fs = require('fs')
+  , path = require('path')
+  , async = require('async')
+  , customUtils = require('../lib/customUtils')
+  , d
+  ;
+
+console.log("Benchmarking inserts");
+
+async.waterfall([
+  function (cb) {
+    console.log("Preparing database");
+
+    customUtils.ensureDirectoryExists(path.dirname(benchDb), function () {
+      fs.exists(benchDb, function (exists) {
+        if (exists) {
+          fs.unlink(benchDb, cb);
+        } else { return cb(); }
+      });
+    });
+  }
+, function (cb) {
+    d = new Datastore(benchDb);
+    d.loadDatabase(cb);
+  }
+, function (cb) {
+    var beg = new Date()
+      , i = 0;
+
+    console.log("Inserting 10,000 documents");
+
+    async.whilst( function () { return i < 10000; }
+    , function (_cb) {
+      i += 1;
+      d.insert({ docNumber: i }, function (err) {
+        return _cb(err);
+      });
+    }, function (err) {
+      var timeTaken = (new Date()).getTime() - beg.getTime();   // In ms
+
+      if (err) { return cb(err); }
+
+      console.log("Time taken: " + (timeTaken / 1000) + "s");
+    });
+  }
+], function (err) {
+  console.log("Benchmark finished");
+
+  if (err) { return console.log("An error was encountered: ", err); }
+});