From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joe Thornber Subject: Re: [for-3.19 PATCH v2 01/17] dm bufio: switch from a huge hash table to an rbtree Date: Wed, 22 Oct 2014 10:41:09 +0100 Message-ID: <20141022094109.GA26664@debian> References: <20141017183119.GA31854@redhat.com> <1413571039-31986-1-git-send-email-snitzer@redhat.com> Reply-To: device-mapper development Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com To: Mikulas Patocka Cc: dm-devel@redhat.com, ejt@redhat.com, Mike Snitzer List-Id: dm-devel.ids On Tue, Oct 21, 2014 at 06:48:00PM -0400, Mikulas Patocka wrote: > I wonder if we need this patch if it doesn't really help performance. I wasn't concerned with performance. I just thought it absurd that bufio was evicting all my metadata yet using 8m per client for a hash table. - Joe