From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from fmsmsxvs041.fm.intel.com (fmsmsxvs041.fm.intel.com [132.233.42.126]) by mail2.hd.intel.com (8.11.6/8.11.6/d: solo.mc,v 1.43 2002/08/30 20:06:11 dmccart Exp $) with SMTP id g8BHdqI19987 for ; Wed, 11 Sep 2002 17:39:52 GMT Message-ID: <25282B06EFB8D31198BF00508B66D4FA03EA5806@fmsmsx114.fm.intel.com> From: "Seth, Rohit" Subject: RE: [PATCH] Config.help entry for CONFIG_HUGETLB_PAGE Date: Wed, 11 Sep 2002 10:39:47 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linux-mm@kvack.org Return-Path: To: 'Steven Cole' , "Martin J. Bligh" Cc: Andrew Morton , "Seth, Rohit" , linux-mm@kvack.org List-ID: Thanks Steve. Your description in config.help file looks good. > -----Original Message----- > From: Steven Cole [mailto:elenstev@mesatop.com] > Sent: Wednesday, September 11, 2002 8:18 AM > To: Martin J. Bligh > Cc: Andrew Morton; Seth, Rohit; linux-mm@kvack.org > Subject: Re: [PATCH] Config.help entry for CONFIG_HUGETLB_PAGE > > > On Wed, 2002-09-11 at 09:05, Martin J. Bligh wrote: > > > > > +CONFIG_HUGETLB_PAGE > > > + This enables support for huge pages (4MB for x86). User space > > > + applications can make use of this support with the > sys_alloc_hugepages > > > + and sys_free_hugepages system calls. If your applications are > > > + huge page aware and your processor (Pentium or later > for x86) supports > > > + this, then say Y here. > > > + > > > + Otherwise, say N. > > > > They're not always 4Mb on x86 ... they're 2Mb if you have PAE > > turned on ... maybe just leave out the "(4MB for x86)" comment? > > > > M. > > Better? > > --- linux-2.5.34-mm1/arch/i386/Config.help.orig Wed Sep > 11 07:54:49 2002 > +++ linux-2.5.34-mm1/arch/i386/Config.help Wed Sep 11 09:14:52 2002 > @@ -25,6 +25,15 @@ > > If you don't know what to do here, say N. > > +CONFIG_HUGETLB_PAGE > + This enables support for huge pages. User space applications > + can make use of this support with the sys_alloc_hugepages and > + sys_free_hugepages system calls. If your applications are > + huge page aware and your processor (Pentium or later for x86) > + supports this, then say Y here. > + > + Otherwise, say N. > + > CONFIG_PREEMPT > This option reduces the latency of the kernel when reacting to > real-time or interactive events by allowing a low priority > process to > -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/