gistfile1

diff --git a/src/node.js b/src/node.js
index 9fc68e4..58ab066 100644
--- a/src/node.js
+++ b/src/node.js
@@ -454,10 +454,10 @@
 
       var tock = { callback: callback };
       if (process.domain) tock.domain = process.domain;
-      nextTickQueue.push(tock);
-      if (nextTickQueue.length) {
+      if (nextTickQueue.length === 0) {
         process._needTickCallback();
       }
+      nextTickQueue.push(tock);
     };
   };
 

if I remember correctly, it's lest costly for v8 to do:

var tock = {
  callback: callback,
  domain: process.domain || false
};

Morphing an object after it's created should be avoided when possible.