From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Morton Subject: Re: [patch 00/10] mm: thrash detection-based file cache sizing v9 Date: Tue, 4 Feb 2014 15:14:24 -0800 Message-ID: <20140204151424.d08301233c1f1801f43498b1@linux-foundation.org> References: <1391475222-1169-1-git-send-email-hannes@cmpxchg.org> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: Andi Kleen , Andrea Arcangeli , Bob Liu , Christoph Hellwig , Dave Chinner , Greg Thelen , Hugh Dickins , Jan Kara , KOSAKI Motohiro , Luigi Semenzato , Mel Gorman , Metin Doslu , Michel Lespinasse , Minchan Kim , Ozgun Erdogan , Peter Zijlstra , Rik van Riel , Roman Gushchin , Ryan Mallon , Tejun Heo , Vlastimil Babka , linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org To: Johannes Weiner Return-path: In-Reply-To: <1391475222-1169-1-git-send-email-hannes@cmpxchg.org> Sender: owner-linux-mm@kvack.org List-Id: linux-fsdevel.vger.kernel.org On Mon, 3 Feb 2014 19:53:32 -0500 Johannes Weiner wrote: > o Fix vmstat build problems on UP (Fengguang Wu's build bot) > > o Clarify why optimistic radix_tree_node->private_list link checking > is safe without holding the list_lru lock (Dave Chinner) > > o Assert locking balance when the list_lru isolator says it dropped > the list lock (Dave Chinner) > > o Remove remnant of a manual reclaim counter in the shadow isolator, > the list_lru-provided accounting is accurate now that we added > LRU_REMOVED_RETRY (Dave Chinner) > > o Set an object limit for the shadow shrinker instead of messing with > its seeks setting. The configured seeks define how pressure applied > to pages translates to pressure on the object pool, in itself it is > not enough to replace proper object valuation to classify expired > and in-use objects. Shadow nodes contain up to 64 shadow entries > from different/alternating zones that have their own atomic age > counter, so determining if a node is overall expired is crazy > expensive. Instead, use an object limit above which nodes are very > likely to be expired. > > o __pagevec_lookup and __find_get_pages kerneldoc fixes (Minchan Kim) > > o radix_tree_node->count accessors for pages and shadows (Minchan Kim) > > o Rebase to v3.14-rc1 and add review tags An earlier version caused a 24-byte inode bloatage. That appears to have been reduced to 8 bytes, yes? What was done there? > 69 files changed, 1438 insertions(+), 462 deletions(-) omigod -- 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