the disks involved in the array is sTEC ssd disk,they are connected by mpt2sas 6Gb/s ------------------------------------------------------------------ 发件人:Pieter De Wit <pieter@xxxxxxxxxxxxx> 发送时间:2013年12月16日(星期一) 15:52 收件人:lilofile <lilofile@xxxxxxxxxx>; unlisted-recipients: <unlisted-recipients:> 抄 送:linux-raid <linux-raid@xxxxxxxxxxxxxxx> 主 题:Re: two raid5 performance 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@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html What is the disks involved in the array ? How are they connected ? -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html