Minor performance optimization for "untyped deserializer" (esp. small lists, maps); smile parser

diff --git a/src/perf/TestJsonPerf.java b/src/perf/TestJsonPerf.java
index 1bee97b..dfe49ee 100644
--- a/src/perf/TestJsonPerf.java
+++ b/src/perf/TestJsonPerf.java
@@ -59,7 +59,7 @@
         while (true) {
             try {  Thread.sleep(100L); } catch (InterruptedException ie) { }
             // Use 9 to test all...
-            int round = (i++ % 1);
+            int round = (i++ % 2);
 
             long curr = System.currentTimeMillis();
             String msg;