simple v. prepared statement query benchmarks

benchmark/simple-query-bench.js

@@ -0,0 +1,50 @@
+var pg = require(__dirname + '/../lib')
+var bencher = require('bencher');
+var helper = require(__dirname + '/../test/test-helper')
+var conString = helper.connectionString()
+
+var doBenchmark = function() {
+  var bench = bencher({
+    repeat: 3000,
+    actions: [{
+      name: 'simple query',
+      run: function(next) {
+        var query = client.query('SELECT name FROM person WHERE age > 10');
+        query.on('end', function() {
+          next();
+        });
+      }
+    },{
+      name: 'unnamed prepared statement',
+      run: function(next) {
+        var query = client.query('SELECT name FROM person WHERE age > $1', [10]);
+        query.on('end', function() {
+          next();
+        });
+      }
+    },{
+      name: 'named prepared statement',
+      run: function(next) {
+        var config = {
+          name: 'get peeps',
+          text: 'SELECT name FROM person WHERE age > $1',
+          values: [10]
+        }
+        client.query(config).on('end', function() {
+          next();
+        });
+      }
+    }]
+  });
+  bench(function(result) {
+    console.log();
+    result.actions.forEach(function(action) {
+      console.log("%s -> %d", action.name, action.meanTime);
+    })
+    client.end();
+  })
+}
+
+var client = new pg.Client(conString);
+client.connect();
+client.connection.once('readyForQuery', doBenchmark)