From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.org/gmane.linux.lib.musl.general/8397 Path: news.gmane.org!not-for-mail From: Jens Gustedt Newsgroups: gmane.linux.lib.musl.general Subject: [PATCH 2/2] make the number of spins tuneable Date: Sat, 29 Aug 2015 10:51:15 +0200 Message-ID: <1440838216.693.5.camel@dysnomia.u-strasbg.fr> Reply-To: musl@lists.openwall.com NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1440838299 19398 80.91.229.3 (29 Aug 2015 08:51:39 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 29 Aug 2015 08:51:39 +0000 (UTC) To: musl@lists.openwall.com Original-X-From: musl-return-8409-gllmg-musl=m.gmane.org@lists.openwall.com Sat Aug 29 10:51:34 2015 Return-path: Envelope-to: gllmg-musl@m.gmane.org Original-Received: from mother.openwall.net ([195.42.179.200]) by plane.gmane.org with smtp (Exim 4.69) (envelope-from ) id 1ZVbrK-00069e-5N for gllmg-musl@m.gmane.org; Sat, 29 Aug 2015 10:51:34 +0200 Original-Received: (qmail 7521 invoked by uid 550); 29 Aug 2015 08:51:32 -0000 Mailing-List: contact musl-help@lists.openwall.com; run by ezmlm Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: Original-Received: (qmail 7471 invoked from network); 29 Aug 2015 08:51:28 -0000 X-IronPort-AV: E=Sophos;i="5.17,429,1437429600"; d="scan'208";a="175269697" Resent-From: Jens Gustedt Resent-To: musl@lists.openwall.com X-Mailer: Evolution 3.12.9-1+b1 Xref: news.gmane.org gmane.linux.lib.musl.general:8397 Archived-At: --- 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