add benchmark for SafeEncoder

src/test/java/redis/clients/jedis/tests/benchmark/SafeEncoderBenchmark.java

@@ -0,0 +1,38 @@
+package redis.clients.jedis.tests.benchmark;
+
+import java.io.IOException;
+import java.net.UnknownHostException;
+import java.util.Calendar;
+
+import redis.clients.util.SafeEncoder;
+
+public class SafeEncoderBenchmark {
+    private static final int TOTAL_OPERATIONS = 10000000;
+
+    public static void main(String[] args) throws UnknownHostException,
+            IOException {
+        long begin = Calendar.getInstance().getTimeInMillis();
+
+        for (int n = 0; n <= TOTAL_OPERATIONS; n++) {
+            SafeEncoder.encode("foo bar!");
+        }
+
+        long elapsed = Calendar.getInstance().getTimeInMillis() - begin;
+
+        System.out.println(((1000 * TOTAL_OPERATIONS) / elapsed)
+                + " ops to build byte[]");
+
+        begin = Calendar.getInstance().getTimeInMillis();
+
+        byte[] bytes = "foo bar!".getBytes();
+        for (int n = 0; n <= TOTAL_OPERATIONS; n++) {
+            SafeEncoder.encode(bytes);
+        }
+
+        elapsed = Calendar.getInstance().getTimeInMillis() - begin;
+
+        System.out.println(((1000 * TOTAL_OPERATIONS) / elapsed)
+                + " ops to build Strings");
+
+    }
+}