最近主要针对硬盘，Nytro MegaRAID，LSI/Fusion-io PCIe flash卡的io进行测试，以下是测试的环境和结果，供大家参考。
1.环境
环境一：
|
测试机 |
Inspur TS850, 10.1.16.8 |
|
CPU |
Intel(R) Xeon(R) CPU E7-8837 * 8 |
|
内存 |
68G(8G * 8) |
|
RAID卡 |
LSI NytroMegaRAID 50g*2 raid1 |
|
系统 |
Red Hat Enterprise Linux Server release 6.3 (Santiago) |
|
内核 |
2.6.32-279.el6.x86_64 |
|
raid级别 |
RAID 10 |
|
硬盘 |
SAS: 15K RPM,2.5 300G SEAGATE SAS *4 |
环境二：
|
测试机 |
Dell R820, 10.1.16.10 |
|
CPU |
Intel(R) Xeon(R) CPU E5-4600 * 8 |
|
内存 |
24G(8G * 3) |
|
RAID卡 |
|
|
系统 |
Red Hat Enterprise Linux Server release 6.3 (Santiago) |
|
内核 |
2.6.32-279.el6.x86_64 |
|
raid级别 |
RAID 10 |
|
硬盘 |
SAS: 15K RPM,2.5 300G SEAGATE SAS *4 |
#测试一
#!/bin/sh
#hdd_rand_read_8k
/home/oracle/db/product/11.2.3/db_1/bin/orion -run advanced -testname hdd_rand_read_8k -size_small 8 -size_large 8 -type rand -num_disks 6
#hdd_rand_write100_8k
/home/oracle/db/product/11.2.3/db_1/bin/orion -run advanced -testname hdd_rand_write100_8k -size_small 8 -size_large 8 -type rand -write 100 -num_disks 6
sleep 800
#hdd_seq_read_8k
/home/oracle/db/product/11.2.3/db_1/bin/orion -run advanced -testname hdd_seq_read_8k -size_small 8 -size_large 8 -type seq -num_disks 6
sleep 800
#hdd_rand_read_8k_1024
/home/oracle/db/product/11.2.3/db_1/bin/orion -run advanced -testname hdd_rand_read_8k_1024 -size_small 8 -size_large 1024 -type rand -num_disks 6
sleep 800
#hdd_rand_read6_write4_8_1024
/home/oracle/db/product/11.2.3/db_1/bin/orion -run advanced -testname hdd_rand_read6_write4_8_1024 -size_small 8 -size_large 1024 -type rand -write 40 -num_disks 6
sleep 800
# hdd_seq_read6_write4_8_1024
/home/oracle/db/product/11.2.3/db_1/bin/orion -run advanced -testname hdd_seq_read6_write4_8_1024 -size_small 8 -size_large 1024 -type seq -write 40 -num_disks 6
说明：
hdd_300G_6_15k_inspur：Inspur 6块300G 15k rpm
hdd_146_14_10k_dell: Dell 14块146G 10k rpm
lsi_SSS6200_inspur: Inspur LSI PCIe卡 800G
Fusion-io_pcie_dell： Dell R820 FUSION-IO ioScale2
PCIe卡1.6T
LSI_MeGaRaid_inspur：Inspur LSI Nytro MegaRAID卡100G
IOPS:
MBPS:
Latency:
4.结语：
1. PCIe flash 卡IOPS至少比传统硬盘高350倍。
2. PCIe flash卡的延时相比传统硬盘更低，响应时间更快
此测试数据只做为参考，不同环境结果不同。
原文：http://blog.itpub.net/26390465/viewspace-1795455/