From mboxrd@z Thu Jan 1 00:00:00 1970 Received: by nz-out-0506.google.com with SMTP id f1so579838nzc for ; Thu, 03 May 2007 09:15:09 -0700 (PDT) Message-ID: <6bffcb0e0705030915r7c169f1cnd3b21413255a5c1f@mail.gmail.com> Date: Thu, 3 May 2007 18:15:06 +0200 From: "Michal Piotrowski" Subject: Re: swap-prefetch: 2.6.22 -mm merge plans In-Reply-To: <20070503155407.GA7536@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20070430162007.ad46e153.akpm@linux-foundation.org> <20070503155407.GA7536@elte.hu> Sender: owner-linux-mm@kvack.org Return-Path: To: Ingo Molnar Cc: Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Con Kolivas List-ID: Hi, On 03/05/07, Ingo Molnar wrote: > > * Andrew Morton wrote: > > > - If replying, please be sure to cc the appropriate individuals. > > Please also consider rewriting the Subject: to something > > appropriate. > > i'm wondering about swap-prefetch: > > mm-implement-swap-prefetching.patch > swap-prefetch-avoid-repeating-entry.patch > add-__gfp_movable-for-callers-to-flag-allocations-from-high-memory-that-may-be-migrated-swap-prefetch.patch > > The swap-prefetch feature is relatively compact: > > 10 files changed, 745 insertions(+), 1 deletion(-) > > it is contained mostly to itself: > > mm/swap_prefetch.c | 581 ++++++++++++++++++++++++++++++++ > > i've reviewed it once again and in the !CONFIG_SWAP_PREFETCH case it's a > clear NOP, while in the CONFIG_SWAP_PREFETCH=y case all the feedback > i've seen so far was positive. Time to have this upstream and time for a > desktop-oriented distro to pick it up. > > I think this has been held back way too long. It's .config selectable > and it is as ready for integration as it ever is going to be. So it's a > win/win scenario. I'm using SWAP_PREFETCH since 2.6.17-mm1 (I don't have earlier configs) http://www.stardust.webpages.pl/files/tbf/euridica/2.6.17-mm1/mm-config and I don't recall _any_ problems. It's very stable for me. > > Acked-by: Ingo Molnar > > Ingo Regards, Michal -- Michal K. K. Piotrowski Kernel Monkeys (http://kernel.wikidot.com/start) -- 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