From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pieter De Wit Subject: Re: two raid5 performance Date: Mon, 16 Dec 2013 20:52:58 +1300 Message-ID: <52AEB15A.3050301@insync.za.net> References: <386c52f5-dd36-4697-b76a-d24038bbded3@aliyun.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <386c52f5-dd36-4697-b76a-d24038bbded3@aliyun.com> Sender: linux-raid-owner@vger.kernel.org To: lilofile Cc: linux-raid List-Id: linux-raid.ids On 16/12/2013 14:07, lilofile wrote: > when I Create a raid5,dd 1M block size,the performance can reached to 1GB/s > when I create another raid5,dd 1M block size ,the performance can reached to 1GB/s > when I simultaneously dd the two different raid,the total performance only reached to 1.4GB/s,why can not reached to 2GB/s. > > the memory is 32GB,CPU is x5660,the stripe size is 4096 > -- > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html What is the disks involved in the array ? How are they connected ?