From af3c944563b8651c14b2b9087ea76f7eeacfc065 Mon Sep 17 00:00:00 2001
From: Rainer Gerhards <rgerhards@adiscon.com>
Date: Thu, 9 Oct 2008 11:21:24 +0200
Subject: added experimental pthread_yield()

which so far seems to increase performance. There is also
reason for it to do so, see http://kb.monitorware.com/post14216.html#p14216
---
 runtime/queue.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/runtime/queue.c b/runtime/queue.c
index 25c0bd5f..3ef6d5a0 100644
--- a/runtime/queue.c
+++ b/runtime/queue.c
@@ -2185,6 +2185,11 @@ finalize_it:
 		/* and release the mutex */
 		d_pthread_mutex_unlock(pThis->mut);
 		pthread_setcancelstate(iCancelStateSave, NULL);
+		/* the following pthread_yield is experimental, but brought us performance
+		 * benefit. For details, please see http://kb.monitorware.com/post14216.html#p14216
+		 * rgerhards, 2008-10-09
+		 */
+		pthread_yield();
 	}
 
 	RETiRet;
-- 
cgit