From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-f182.google.com ([209.85.192.182]:36643 "EHLO mail-pf0-f182.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751143AbdCRBEz (ORCPT ); Fri, 17 Mar 2017 21:04:55 -0400 Received: by mail-pf0-f182.google.com with SMTP id o126so44152020pfb.3 for ; Fri, 17 Mar 2017 18:03:15 -0700 (PDT) Date: Fri, 17 Mar 2017 17:55:45 -0700 From: Omar Sandoval To: linux-block@vger.kernel.org Cc: kernel-team@fb.com Subject: Re: [RFC PATCH 0/4] blk-mq: multiqueue I/O scheduler Message-ID: <20170318005545.GA16466@mew> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: Sender: linux-block-owner@vger.kernel.org List-Id: linux-block@vger.kernel.org On Fri, Mar 17, 2017 at 03:03:29PM -0700, Omar Sandoval wrote: > From: Omar Sandoval > With Kyber set to a target latency of 1 ms, the reader sees latencies of 8 ms > on average. Kyber brings this down to just over 1 ms. Of course, this is supposed to say, without Kyber, the reader sees latencies of 8 ms. With Kyber set to a target latency of 1 ms, the actual average latency is just over 1 ms.