linux-kernel - Re: Improve hackbench

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Date:	Mon, 07 Jan 2008 09:27:39 +0800
From:	"Zhang, Yanmin" <yanmin_zhang@...ux.intel.com>
To:	Lee Revell <rlrevell@...-job.com>
Cc:	Ingo Molnar <mingo@...e.hu>, LKML <linux-kernel@...r.kernel.org>,
	Arjan van de Ven <arjan@...radead.org>
Subject: Re: Improve hackbench

On Fri, 2008-01-04 at 07:44 -0500, Lee Revell wrote:
> On Jan 4, 2008 3:10 AM, Ingo Molnar <mingo@...e.hu> wrote:
> >   http://redhat.com/~mingo/cfs-scheduler/tools/hackbench.c
> >
> 
> Why not lose the #ifdef and just use PTHREAD_STACK_MIN?
That's a good idea.

Thanks,
-yanmin

---

--- hackbench.c.orig	2008-01-10 08:24:36.000000000 +0800
+++ hackbench.c	2008-01-10 08:25:12.000000000 +0800
@@ -151,10 +151,8 @@ pthread_t create_worker(void *ctx, void 
 	if (pthread_attr_init(&attr) != 0)
 		barf("pthread_attr_init:");
 
-#ifndef __ia64__
-	if (pthread_attr_setstacksize(&attr, (size_t)(16*1024)) != 0)
+	if (pthread_attr_setstacksize(&attr, PTHREAD_STACK_MIN) != 0)
 		barf("pthread_attr_setstacksize");
-#endif
 
 	if ((err=pthread_create(&childid, &attr, func, ctx)) != 0) {
 		fprintf(stderr, "pthread_create failed: %s (%d)\n", strerror(err), err);


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