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Date: Sat, 29 Aug 2015 10:51:15 +0200
From: Jens Gustedt <Jens.Gustedt@...ia.fr>
To: musl@...ts.openwall.com
Subject: [PATCH 2/2] make the number of spins tuneable
---
src/thread/__wait.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/src/thread/__wait.c b/src/thread/__wait.c
index a93d41d..46501cb 100644
--- a/src/thread/__wait.c
+++ b/src/thread/__wait.c
@@ -1,8 +1,14 @@
#include "pthread_impl.h"
+#ifndef __WAIT_SPINS
+# define __WAIT_SPINS 100
+#endif
+
+int __wait_spins = __WAIT_SPINS;
+
void __wait(volatile int *addr, volatile int *waiters, int val, int priv)
{
- int spins=100;
+ int spins=__wait_spins;
if (priv) priv = FUTEX_PRIVATE;
while (spins--) {
if (*addr==val) a_spin();
--
2.1.4
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