From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Fri, 27 Dec 2002 14:45:53 -0600 From: Dave McCracken Subject: Re: shared pagetable benchmarking Message-ID: <58520000.1041021953@[10.1.1.5]> In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-linux-mm@kvack.org Return-Path: To: Linus Torvalds Cc: Daniel Phillips , Andrew Morton , linux-mm@kvack.org List-ID: --On Friday, December 27, 2002 12:18:23 -0800 Linus Torvalds wrote: > That's clearly not 2.6.x material. But at this point I doubt that shared > page tables are either, unless they fix something more important than > fork() speed for processes that are larger than 16MB. The other thing it does is eliminate the duplicate pte pages for shared regions everywhere they span a complete pte page. While hugetlb can also do this for some specialized applications, shared page tables will do it for every shared region that's large enough. I dunno whether you consider that important enough to qualify, but I figured I should point it out. Dave McCracken -- 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/