DELL R420 & MD3220 IO性能測試報告

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<b>MD3220 四部曲：</b>

<b>1</b><b>、測試環境</b>

<b>作業系統版本</b>

CentOS release 6.3 (Final) x86_64

<b>核心版本</b>

2.6.32-279.el6.x86_64 #1 SMP

<b>檔案系統</b>

ext4

<b>IO</b><b>調</b>

cfq

<b>測試機</b>

DELL PE R420(詳見<b>R420</b><b>硬體配置資訊</b>)

<b>2</b><b>、DAS IO測試工具Iometer</b>

<b>Iometer</b><b>版本</b>

1.1.0-rc1

<b>Iometer</b><b>設定參數</b>

<b>Maximum Disk Sizes</b> 

20000000Sectors（81GB）

<b>of Outstanding I/Os</b>

1/8/32

<b>Run Time</b>

2h

<b>3</b><b>、R420硬體配置資訊</b>

Summary:        Dell R420, 1 x Xeon E5-2420 0 1.90GHz, 15.5GB / 16GB 1333MHz DDR3

System:         Dell PowerEdge R420 (Dell 01PP0V)

Processors:     1 (of 2) x Xeon E5-2420 0 1.90GHz 6400MHz FSB (HT enabled, 6 cores, 12 threads)

Memory:         15.5GB / 16GB 1333MHz DDR3 == 2 x 8GB, 10 x empty

Disk:           sda (scsi0): 1.2TB (7%) JBOD == 1 x DELL-PERC-H710P

Disk:           sdb (scsi1): 2.4TB JBOD == 1 x DELL-MD32xx

Disk:           sdc (scsi1): JBOD == 1 x DELL-Universal-Xport

Disk-Control:   ahci0: Intel C600/X79 series chipset 6-Port SATA AHCI Controller

Disk-Control:   megaraid_sas0: LSI Logic / Symbios Logic MegaRAID SAS 2208 [Thunderbolt]

Disk-Control:   mpt2sas0: LSI Logic / Symbios Logic SAS2008 PCI-Express Fusion-MPT SAS-2 [Falcon]

Network:        em1 (tg3): Broadcom NetXtreme BCM5720 Gigabit PCIe, 90:b1:1c:30:4d:3a, 100Mb/s &lt;full-duplex&gt;

Network:        em2 (tg3): Broadcom NetXtreme BCM5720 Gigabit PCIe, 90:b1:1c:30:4d:3b, no carrier

OS:             CentOS 6.3 (Final), Linux 2.6.32-279.el6.x86_64 x86_64, 64-bit

BIOS:           Dell 1.4.6 10/26/2012

R420 硬碟及RAID配置：RAID5 600G/2.5"/10k/sas*3+1塊hotspare/RAID卡1GB緩存

<b>4</b><b>、R420 IO性能測試</b>

<b>兩個裝置硬體配置方面及RAID配置都一樣：RAID卡1GB緩存、硬碟SAS/10k/2.5寸</b>

<b>Access Specification Name</b>

<b> of Outstanding I/Os</b>

<b>IOps</b>

<b>Read IOps</b>

<b>Write IOps</b>

<b>MBps (Decimal)</b>

<b>Read MBps (Decimal)</b>

<b>Write MBps (Decimal)</b>

<b>Transactions per Second</b>

<b>Average Response Time(ms)</b>

4K; 100% Read; 0% random

8

78995.73001

323.56651

0.101051

4K; 100% Write; 0% random

79386.4845

325.16704

0.100447

4K; 100% Read; 100% random

235.249117

0.96358

34.005524

4K; 100% Write; 100% random

1672.556382

6.850791

4.782309

16

78929.86665

323.296734

323.29673

0.202484

79388.71514

325.176177

0.201219

254.362938

1.041871

62.901264

1685.435247

6.903543

9.492133

32

78989.47286

323.540881

323.54088

0.404873

79375.04768

325.120195

0.402844

258.860832

1.060294

123.618606

1686.722898

6.908817

18.968491

5、MD3220 IO性能測試

<b>6、測試結論</b>

<b>IO</b><b>測試結論：</b>

主要測試4k資料順序、随機讀寫IO性能

R420随機讀寫性能較差，特别是随機讀性能，相對MD3220随機讀較好

MD3220 随機讀寫性能較差。除随機讀性能外，其他方面比R420性能較好

本文轉自pandazhai 51CTO部落格，原文連結:http://blog.51cto.com/dreamway/1134064