From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Sat, 6 Nov 2004 04:06:24 -0800 From: William Lee Irwin III Subject: Re: removing mm->rss and mm->anon_rss from kernel? Message-ID: <20041106120624.GE2890@holomorphy.com> References: <418AE0F0.5050908@yahoo.com.au> <418AE9BB.1000602@yahoo.com.au> <1099622957.29587.101.camel@gaston> <418C55A7.9030100@yahoo.com.au> <418CA535.1030703@yahoo.com.au> <20041106103103.GC2890@holomorphy.com> <418CAA44.3090007@yahoo.com.au> <20041106105314.GD2890@holomorphy.com> <418CB06F.1080405@yahoo.com.au> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <418CB06F.1080405@yahoo.com.au> Sender: owner-linux-mm@kvack.org Return-Path: To: Nick Piggin Cc: Christoph Lameter , Benjamin Herrenschmidt , Hugh Dickins , linux-mm@kvack.org, linux-ia64@kernel.vger.org List-ID: William Lee Irwin III wrote: >> Per-cpu magazines look okay to me. Failing that, per groups of cpus. >> Failing that, hash. And so on. This is all boilerplate material. Split >> counters are not rocket science. No calc of variations, no time- >> dependent densities or moments of inertia, etc. On Sat, Nov 06, 2004 at 10:07:27PM +1100, Nick Piggin wrote: > The problem being that a page can be allocated on one CPU and freed > on another. > Well that can actually be workable... but its ugly, and rules out a > perfectly scalable, mmap_sem'less page fault (looking far into the > future here :P). There is no conflict. The sums are invariant under overflows. -- wli -- 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