From mboxrd@z Thu Jan 1 00:00:00 1970 Received: by ug-out-1314.google.com with SMTP id o2so806398uge for ; Wed, 26 Jul 2006 04:00:24 -0700 (PDT) Message-ID: <6e0cfd1d0607260400r731489a1tfd9e6c5a197fb0bd@mail.gmail.com> Date: Wed, 26 Jul 2006 13:00:23 +0200 From: "Martin Schwidefsky" Subject: Re: [PATCH] mm: inactive-clean list In-Reply-To: <44C30E33.2090402@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <1153167857.31891.78.camel@lappy> <44C30E33.2090402@redhat.com> Sender: owner-linux-mm@kvack.org Return-Path: To: Rik van Riel Cc: Peter Zijlstra , linux-mm , Linus Torvalds , Andrew Morton , linux-kernel List-ID: On 7/23/06, Rik van Riel wrote: > Peter Zijlstra wrote: > > This patch implements the inactive_clean list spoken of during the VM summit. > > The LRU tail pages will be unmapped and ready to free, but not freeed. > > This gives reclaim an extra chance. > > This patch makes it possible to implement Martin Schwidefsky's > hypervisor-based fast page reclaiming for architectures without > millicode - ie. Xen, UML and all other non-s390 architectures. Hmm, I wonder how the inactive clean list helps in regard to the fast host reclaim scheme. In particular since the memory pressure that triggers the reclaim is in the host, not in the guest. So all pages might be on the active list but the host still wants to be able to discard pages. -- blue skies, Martin -- 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: email@kvack.org