From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ric Wheeler Subject: [LSF/MM TOPIC] update on discard support & testing with vendors Date: Mon, 17 Jan 2011 09:46:15 -0500 Message-ID: <4D345637.6000207@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit To: lsf-pc@lists.linuxfoundation.org, linux-fsdevel@vger.kernel.org, "linux-scsi@vger.kernel.org" Return-path: Received: from mx1.redhat.com ([209.132.183.28]:9427 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752572Ab1AQOqq (ORCPT ); Mon, 17 Jan 2011 09:46:46 -0500 Sender: linux-fsdevel-owner@vger.kernel.org List-ID: I would like to spend some time reviewing where we stand with the discard support - specifically review where we do in the stack (creation time, fine-grained during deletions, other bulk times), how the options perform and any performance results we have with various classes of devices (SCSI and SSD). Similar interest in how the topology/alignment support has worked out. Both topics took a lot of effort on our part and I expect that we are just now going to be hitting the point where hardware vendors take us seriously enough & are starting to test.... Ric