linux-kernel - Re: [RFC] IO scheduler based IO controller V6

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Message-ID: <4A6D0C9A.3080600@cn.fujitsu.com>
Date:	Mon, 27 Jul 2009 10:10:34 +0800
From:	Gui Jianfeng <guijianfeng@...fujitsu.com>
To:	Vivek Goyal <vgoyal@...hat.com>
CC:	linux-kernel@...r.kernel.org,
	containers@...ts.linux-foundation.org, dm-devel@...hat.com,
	jens.axboe@...cle.com, nauman@...gle.com, dpshah@...gle.com,
	lizf@...fujitsu.com, mikew@...gle.com, fchecconi@...il.com,
	paolo.valente@...more.it, ryov@...inux.co.jp,
	fernando@....ntt.co.jp, s-uchida@...jp.nec.com, taka@...inux.co.jp,
	jmoyer@...hat.com, dhaval@...ux.vnet.ibm.com,
	balbir@...ux.vnet.ibm.com, righi.andrea@...il.com,
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	snitzer@...hat.com, akpm@...ux-foundation.org, peterz@...radead.org
Subject: Re: [RFC] IO scheduler based IO controller V6

Hi，

Here are some fio test results for IO Controller V6 built and not built.
Iozone test results are also attached.

Arch: X86
Mem:  1G
Disk: 320G
IO Scheduler: CFQ

============
By normal read and write syscall.

Block Size:32K
File Size: 1G * 10

Mode                    Normal read   |   Random read   |   Normal write   |   Random write | Direct read | Direct write

2.6.31-rc1              47,932KiB/s       3,566KiB/s        45,693KiB/s        8,501KiB/s     50,088KiB/s   43,473KiB/s

2.6.31-rc1-Vivek-V6     47,231KiB/s       3,411KiB/s        42,451KiB/s        8,714KiB/s     51,284KiB/s   42,341KiB/s

Performance             -1.5%             -4.4%             -7.0%              +2.5%          +2.4%         -2.6%

============

By mmap.

Block Size:32K
File Size: 500M

Mode                    Normal read   |   Random read   |   Normal write   |   Random write

2.6.31-rc1              49,951KiB/s       3,245KiB/s        21,950KiB/s        2,771KiB/s

2.6.31-rc1-Vivek-V6     49,951KiB/s       3,154KiB/s        22,593KiB/s        2,648KiB/s

Performance             0%                -2.8%             +2.9%              -4.4%

============
 
By libaio calls

Block Size:32K
File Size: 500M

Mode                    Normal read   |  Random read   |   Normal write   |   Random write

2.6.31-rc1              49,447KiB/s       3,296KiB/s        57,519KiB/s        21,093KiB/s

2.6.31-rc1-Vivek-V6     50,142KiB/s       3,238KiB/s        57,791KiB/s        21,283KiB/s

Performance             +1.4%             -1.8%             0%                 +0.1%

============












Download attachment "fio-test.tgz" of type "application/x-compressed" (4964 bytes)

Download attachment "iozone_log.tgz" of type "application/x-compressed" (142924 bytes)