From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <410B13E5.9080005@sgi.com> Date: Fri, 30 Jul 2004 22:37:09 -0500 From: Ray Bryant MIME-Version: 1.0 Subject: Re: Scaling problem with shmem_sb_info->stat_lock References: <20040730163443.37f9b309.pj@sgi.com> In-Reply-To: <20040730163443.37f9b309.pj@sgi.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Paul Jackson Cc: Brent Casavant , hugh@veritas.com, wli@holomorphy.com, akpm@osdl.org, linux-mm@kvack.org List-ID: Perhaps, but then you still have one processor doing the zeroing and setup for all of those pages, and that can be a signficiant serial bottleneck. Paul Jackson wrote: > Brent wrote: > >>Having a single CPU fault in all the pages will generally >>cause all pages to reside on a single NUMA node. > > > Couldn't one use Andi Kleen's numa mbind() to layout the > memory across the desired nodes, before faulting it in? > -- Best Regards, Ray ----------------------------------------------- Ray Bryant 512-453-9679 (work) 512-507-7807 (cell) raybry@sgi.com raybry@austin.rr.com The box said: "Requires Windows 98 or better", so I installed Linux. ----------------------------------------------- -- 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/ . Don't email: aart@kvack.org