From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bart Van Assche Subject: Re: SCSI core patches for kernel 3.12 Date: Tue, 20 Aug 2013 18:15:04 +0200 Message-ID: <52139608.5040608@acm.org> References: <52135B99.2000102@acm.org> <1377015091.5302.47.camel@haakon3.risingtidesystems.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from gerard.telenet-ops.be ([195.130.132.48]:54871 "EHLO gerard.telenet-ops.be" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751171Ab3HTQPH (ORCPT ); Tue, 20 Aug 2013 12:15:07 -0400 In-Reply-To: <1377015091.5302.47.camel@haakon3.risingtidesystems.com> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: "Nicholas A. Bellinger" Cc: James Bottomley , Mike Christie , Hannes Reinecke , David Milburn , linux-scsi On 08/20/13 18:11, Nicholas A. Bellinger wrote: > On Tue, 2013-08-20 at 14:05 +0200, Bart Van Assche wrote: >> This patch series consists of four patches that address device removal >> issues and three patches that improve performance of the SCSI mid-layer. > > Perhaps it would be useful to know what the performance improvement > actually is..? Eg: fio numbers before and after. The optimizations in this patch series are micro-optimizations. Their performance impact is small but measurable. Peak IOPS results are improved by about 1% by each of these performance improvements for a low-latency transport. Bart.