From owner-freebsd-performance@freebsd.org Tue Jun 21 16:36:43 2016 Return-Path: Delivered-To: freebsd-performance@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id A1EF1AC5FE2; Tue, 21 Jun 2016 16:36:43 +0000 (UTC) (envelope-from feld@FreeBSD.org) Received: from out3-smtp.messagingengine.com (out3-smtp.messagingengine.com [66.111.4.27]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 7CA582AC8; Tue, 21 Jun 2016 16:36:43 +0000 (UTC) (envelope-from feld@FreeBSD.org) Received: from compute1.internal (compute1.nyi.internal [10.202.2.41]) by mailout.nyi.internal (Postfix) with ESMTP id 22E4B2092B; Tue, 21 Jun 2016 12:36:42 -0400 (EDT) Received: from web4 ([10.202.2.214]) by compute1.internal (MEProxy); Tue, 21 Jun 2016 12:36:42 -0400 DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d= messagingengine.com; h=content-transfer-encoding:content-type :date:from:in-reply-to:message-id:mime-version:references :subject:to:x-sasl-enc:x-sasl-enc; s=smtpout; bh=QYn+6/JOvuakMzb KpvdFmEmnZuE=; b=p50kHpsAPgbhZ615Yfu56Y9RdrQQrzPOEdD+RnkCa/Ob1eM MhnWtyYJIaie7+J/+0u43NaISSP4Os/l6cn0uHw9fuvV490A7h0pQxC3DAJfrahA 8FUrnTc3Pqz6qxtIqLEWLFo4nGizeUcpUXDZISF33mqZjjttSn4uqltb5Sp0= Received: by mailuser.nyi.internal (Postfix, from userid 99) id F1955CC672; Tue, 21 Jun 2016 12:36:41 -0400 (EDT) Message-Id: <1466527001.2694442.644278905.18E236CD@webmail.messagingengine.com> X-Sasl-Enc: k4/kYWm4awCS1xnjnT4ajGNVz/VSF8t/f/bie76/NtQk 1466527001 From: Mark Felder To: Jason Zhang , freebsd-stable@freebsd.org, freebsd-performance@freebsd.org, freebsd-hardware@freebsd.org MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain X-Mailer: MessagingEngine.com Webmail Interface - ajax-eb8588c4 Subject: Re: mfi driver performance too bad on LSI MegaRAID SAS 9260-8i Date: Tue, 21 Jun 2016 11:36:41 -0500 In-Reply-To: <16CD100A-3BD0-47BA-A91E-F445E5DF6DBC@cyphytech.com> References: <16CD100A-3BD0-47BA-A91E-F445E5DF6DBC@cyphytech.com> X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 21 Jun 2016 16:36:43 -0000 On Fri, Jun 17, 2016, at 02:17, Jason Zhang wrote: > Hi, > > I am working on storage service based on FreeBSD. I look forward to a > good result because many professional storage company use FreeBSD as its > OS. But I am disappointed with the Bad performance. I tested the the > performance of LSI MegaRAID 9260-8i and had the following bad result: > > 1. Test environment: > (1) OS: FreeBSD 10.0 release 10.0-RELEASE is no longer supported. Can you test this on 10.3-RELEASE? Have you confirmed that both servers are using identical RAID controller settings? It's possible the CentOS install has enabled write caching but it's disabled on your FreeBSD server. Are you using UFS or ZFS on FreeBSD? Do you have atime enabled? I believe CentOS is going to have "relatime" or "nodiratime" by default to mitigate the write penalty on each read access. We need more data :-) -- Mark Felder ports-secteam member feld@FreeBSD.org