From 27d0379a9710e7f8cc715af3953b4e8c602bcd0b Mon Sep 17 00:00:00 2001
From: Andrew <16061801+brada4@users.noreply.github.com>
Date: Sun, 3 Mar 2019 19:41:44 +0200
Subject: [PATCH] use sleep timed after sched_yield for spinning busy loop

---
 common.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/common.h b/common.h
index 7fcd5e316..94b7cd8b3 100644
--- a/common.h
+++ b/common.h
@@ -366,7 +366,11 @@ typedef int blasint;
 */
 
 #ifndef YIELDING
-#define YIELDING	sched_yield()
+#define YIELDING nanosleep((const struct timespec[]){{0,10000L}},NULL);
+// Line above is equal to following, but compliant with much older POSIX spec
+// #define YIELDING usleep(10);
+// Linux 2.4 might gain from implied scheduler programming instead
+// #define YIELDING	sched_yield()
 #endif
 
 /***