From 75dd924f3aa42eac7eb1a397854c5475f4c24df3 Mon Sep 17 00:00:00 2001
From: JoelKatz <DavidJoelSchwartz@GMail.com>
Date: Fri, 29 Mar 2013 17:07:42 -0700
Subject: [PATCH] Don't spin when an IO+ thread returns to the job queue.

---
 src/cpp/ripple/JobQueue.cpp | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/cpp/ripple/JobQueue.cpp b/src/cpp/ripple/JobQueue.cpp
index d169a9dda..ccd992da2 100644
--- a/src/cpp/ripple/JobQueue.cpp
+++ b/src/cpp/ripple/JobQueue.cpp
@@ -291,12 +291,19 @@ void JobQueue::threadEntry()
 	while (1)
 	{
 		NameThread("waiting");
+		bool didIO = false;
 		while (mJobSet.empty() && !mShuttingDown)
 		{
-			if ((mIOThreadCount < mMaxIOThreadCount) && !theApp->isShutdown())
+			if ((mIOThreadCount < mMaxIOThreadCount) && !didIO && !theApp->isShutdown())
+			{
 				IOThread(sl);
+				didIO = true;
+			}
 			else
+			{
 				mJobCond.wait(sl);
+				didIO = false;
+			}
 		}
 
 		if (mShuttingDown)