Oracle压力测试工具ORION
ORION (Oracle I/O Calibration Tool) 是校准用于 Oracle 数据库的存储系统 I/O 性能的独立工具。校准结果对于了解存储系统的性能
1，功能简介
ORION (Oracle I/O Calibration Tool) 是校准用于 Oracle 数据库的存储系统 I/O 性能的独立工具。校准结果对于了解存储系统的性能有很大帮助，不仅可以找出影响 Oracle 数据库性能的问题，还能测量新数据库安装的大小。由于 ORION 是一个独立工具，用户不需要创建和运行 Oracle 数据库。
为了尽可能地模拟 Oracle 数据库，ORION 使用和 Oracle 相同的 I/O 软件集生成一个合成的 I/O 负载。可以将 ORION 配置为生成很多 I/O 负载，包括一个模拟 OLTP 和数据仓库负载的 I/O 负载。
ORION 支持多种平台。将来还会增加对更多平台的支持。用户指南提供详细的使用文档，包括“入门”部分和疑难解答提示。在 ORION 中调用“-help”选项可以直接获取关于如何使用 ORION 的摘要。
2，简单使用过程
下载地址
运行安装
gunzip orion_linux_x86-64
运行测试
生成mytest.lun文件
/dev/mapper/mpath7p1
/dev/mapper/mpath8p1
运行命令
./orion_linux_x86-64 -run simple -testname mytest -num_disks 2
其它方式的命令可以寻求帮助
./orion_linux_x86-64 -help
3，，测试结果
[root@ tmp]# cat mytest_20120629_1519_summary.txt
ORION VERSION 11.1.0.7.0
Commandline:
-run simple -testname mytest -num_disks 2
This maps to this test:
Test: mytest
Small IO size: 8 KB
Large IO size: 1024 KB
IO Types: Small Random IOs, Large Random IOs
Simulated Array Type: CONCAT
Write: 0%
Cache Size: Not Entered
Duration for each Data Point: 60 seconds
Small Columns:, 0
Large Columns:, 0, 1, 2, 3, 4
Total Data Points: 15
Name: /dev/mapper/mpath7p1 Size: 536869863424
Name: /dev/mapper/mpath8p1 Size: 536869863424
2 FILEs found.
Maximum Large MBPS=183.53 @ Small=0 and Large=4
Maximum Small IOPS=851 @ Small=10 and Large=0
Minimum Small Latency=11.38 @ Small=3 and Large=0
4，结果比较分析
在压力测试的同时，通过IOSTAT命令也可以简单计算数值，由于采样原因，最大值稍有不同。
IOPS = [dm-13]r/s + [dm-14]r/s + [dm-13]w/s + [dm-14]w/s IOSTAT最大422+424=846
MBPS = ([dm-13]rsec/s + [dm-14]rsec/s)/2/1024 = rMB/s + wMB/s IOSTAT最大94+92=186MBPS
Latency = await 基本11秒左右
[root@ mapper]# iostat -d -x 1 30|grep dm-1[3,4]
Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s avgrq-sz avgqu-sz await svctm %util
dm-13 0.00 0.00 25.50 0.00 3386.05 0.00 132.77 0.32 12.57 4.45 11.35
dm-14 0.00 0.00 25.56 0.00 3426.57 0.00 134.04 0.32 12.60 4.44 11.36
dm-13 0.00 0.00 339.00 0.00 5424.00 0.00 16.00 4.01 11.86 2.95 100.10
dm-14 0.00 0.00 328.00 0.00 5248.00 0.00 16.00 3.97 12.00 3.02 99.20
dm-13 0.00 0.00 364.00 0.00 5824.00 0.00 16.00 4.20 11.43 2.74 99.70
dm-14 0.00 0.00 325.00 0.00 5200.00 0.00 16.00 3.78 11.72 3.05 99.10
dm-13 0.00 0.00 340.00 0.00 5440.00 0.00 16.00 3.94 11.64 2.94 99.80
dm-14 0.00 0.00 355.00 0.00 5680.00 0.00 16.00 4.02 11.36 2.82 100.20
[root@ host8]# iostat -d -xm 1 30|grep dm-1[3,4]
Device: rrqm/s wrqm/s r/s w/s rMB/s wMB/s avgrq-sz avgqu-sz await svctm %util
dm-13 0.00 0.00 341.00 0.00 2.66 0.00 16.00 4.07 11.90 2.93 99.80
dm-14 0.00 0.00 343.00 0.00 2.68 0.00 16.00 3.90 11.35 2.92 100.10
dm-13 0.00 0.00 330.00 0.00 2.58 0.00 16.00 3.92 11.89 3.01 99.40
dm-14 0.00 0.00 360.00 0.00 2.81 0.00 16.00 4.04 11.29 2.73 98.40
dm-13 0.00 0.00 342.00 0.00 2.67 0.00 16.00 4.09 12.08 2.90 99.30
dm-14 0.00 0.00 352.00 0.00 2.75 0.00 16.00 3.87 10.89 2.82 99.40
dm-13 0.00 0.00 345.54 0.00 2.70 0.00 16.00 3.98 11.48 2.87 99.21
dm-14 0.00 0.00 336.63 0.00 2.63 0.00 16.00 3.92 11.61 2.92 98.42
dm-13 0.00 0.00 352.00 0.00 2.75 0.00 16.00 3.96 11.23 2.83 99.50
dm-14 0.00 0.00 344.00 0.00 2.69 0.00 16.00 3.98 11.62 2.89 99.30
dm-13 0.00 0.00 179.00 0.00 89.50 0.00 1024.00 3.74 20.88 5.20 93.13
dm-14 0.00 0.00 189.60 0.00 94.80 0.00 1024.00 3.84 20.27 4.96 94.07
dm-13 0.00 0.00 188.20 0.00 94.10 0.00 1024.00 3.84 20.42 4.98 93.68
dm-14 0.00 0.00 185.20 0.00 92.60 0.00 1024.00 3.75 20.27 5.01 92.79
dm-13 0.00 0.00 180.00 0.00 90.00 0.00 1024.00 3.70 20.55 5.07 91.17
dm-13 0.00 0.00 441.40 0.00 3.45 0.00 16.00 5.13 11.62 2.26 99.91
dm-14 0.00 0.00 415.20 0.00 3.24 0.00 16.00 4.82 11.60 2.41 99.92
dm-13 0.00 0.00 422.70 0.00 3.30 0.00 16.00 4.93 11.66 2.36 99.89
dm-14 0.00 0.00 424.80 0.00 3.32 0.00 16.00 5.02 11.81 2.35 99.83
dm-13 0.00 0.00 426.80 0.00 3.33 0.00 16.00 4.99 11.69 2.34 99.92
dm-14 0.00 0.00 419.90 0.00 3.28 0.00 16.00 4.96 11.80 2.38 100.00
rrqm/s: 每秒进行 merge 的读操作数目。即 delta(rmerge)/s
wrqm/s: 每秒进行 merge 的写操作数目。即 delta(wmerge)/s
r/s: 每秒完成的读 I/O 设备次数。即 delta(rio)/s
w/s: 每秒完成的写 I/O 设备次数。即 delta(wio)/s
rsec/s: 每秒读扇区数。即 delta(rsect)/s
wsec/s: 每秒写扇区数。即 delta(wsect)/s
rkB/s: 每秒读K字节数。是 rsect/s 的一半，因为每扇区大小为512字节。
wkB/s: 每秒写K字节数。是 wsect/s 的一半。
avgrq-sz: 平均每次设备I/O操作的数据大小 (扇区)。即 delta(rsect+wsect)/delta(rio+wio)
avgqu-sz: 平均I/O队列长度。即 delta(aveq)/s/1000 (因为aveq的单位为毫秒)。
await: 平均每次设备I/O操作的等待时间 (毫秒)。即 delta(ruse+wuse)/delta(rio+wio)
svctm: 平均每次设备I/O操作的服务时间 (毫秒)。即 delta(use)/delta(rio+wio)
％util: 一秒中有百分之多少的时间用于 I/O 操作，或者说一秒中有多少时间 I/O 队列是非空的。
即 delta(use)/s/1000 (因为use的单位为毫秒
备注：
IO的映射可以通过如下命令获得。mpath8即为dm-14
multipath -ll
mpath8 (360050768018086462800000000000055) dm-14 IBM,2145
[size=500G][features=1 queue_if_no_path][hwhandler=0][rw]
\_ round-robin 0 [prio=100][active]
\_ 9:0:0:9 sdak 66:64 [active][ready]
\_ 8:0:0:9 sdk 8:160 [active][ready]
\_ round-robin 0 [prio=20][enabled]
\_ 9:0:1:9 sdax 67:16 [active][ready]
\_ 8:0:1:9 sdx 65:112 [active][ready]
mpath7 (360050768018086462800000000000054) dm-13 IBM,2145
[size=500G][features=1 queue_if_no_path][hwhandler=0][rw]
\_ round-robin 0 [prio=100][active]
\_ 9:0:1:8 sdaw 67:0 [active][ready]
\_ 8:0:1:8 sdw 65:96 [active][ready]
\_ round-robin 0 [prio=20][enabled]
\_ 9:0:0:8 sdaj 66:48 [active][ready]
\_ 8:0:0:8 sdj 8:144 [active][ready]
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
How does Go language implement the addition, deletion, modification and query operations of the database?
Mar 27, 2024 pm 09:39 PM
Go language is an efficient, concise and easy-to-learn programming language. It is favored by developers because of its advantages in concurrent programming and network programming. In actual development, database operations are an indispensable part. This article will introduce how to use Go language to implement database addition, deletion, modification and query operations. In Go language, we usually use third-party libraries to operate databases, such as commonly used sql packages, gorm, etc. Here we take the sql package as an example to introduce how to implement the addition, deletion, modification and query operations of the database. Assume we are using a MySQL database.
How does Hibernate implement polymorphic mapping?
Apr 17, 2024 pm 12:09 PM
Hibernate polymorphic mapping can map inherited classes to the database and provides the following mapping types: joined-subclass: Create a separate table for the subclass, including all columns of the parent class. table-per-class: Create a separate table for subclasses, containing only subclass-specific columns. union-subclass: similar to joined-subclass, but the parent class table unions all subclass columns.
Detailed tutorial on establishing a database connection using MySQLi in PHP
Jun 04, 2024 pm 01:42 PM
How to use MySQLi to establish a database connection in PHP: Include MySQLi extension (require_once) Create connection function (functionconnect_to_db) Call connection function ($conn=connect_to_db()) Execute query ($result=$conn->query()) Close connection ( $conn->close())
iOS 18 adds a new 'Recovered' album function to retrieve lost or damaged photos
Jul 18, 2024 am 05:48 AM
Apple's latest releases of iOS18, iPadOS18 and macOS Sequoia systems have added an important feature to the Photos application, designed to help users easily recover photos and videos lost or damaged due to various reasons. The new feature introduces an album called "Recovered" in the Tools section of the Photos app that will automatically appear when a user has pictures or videos on their device that are not part of their photo library. The emergence of the "Recovered" album provides a solution for photos and videos lost due to database corruption, the camera application not saving to the photo library correctly, or a third-party application managing the photo library. Users only need a few simple steps
An in-depth analysis of how HTML reads the database
Apr 09, 2024 pm 12:36 PM
HTML cannot read the database directly, but it can be achieved through JavaScript and AJAX. The steps include establishing a database connection, sending a query, processing the response, and updating the page. This article provides a practical example of using JavaScript, AJAX and PHP to read data from a MySQL database, showing how to dynamically display query results in an HTML page. This example uses XMLHttpRequest to establish a database connection, send a query and process the response, thereby filling data into page elements and realizing the function of HTML reading the database.
Analysis of the basic principles of MySQL database management system
Mar 25, 2024 pm 12:42 PM
Analysis of the basic principles of the MySQL database management system MySQL is a commonly used relational database management system that uses structured query language (SQL) for data storage and management. This article will introduce the basic principles of the MySQL database management system, including database creation, data table design, data addition, deletion, modification, and other operations, and provide specific code examples. 1. Database Creation In MySQL, you first need to create a database instance to store data. The following code can create a file named "my
How to handle database connection errors in PHP
Jun 05, 2024 pm 02:16 PM
To handle database connection errors in PHP, you can use the following steps: Use mysqli_connect_errno() to obtain the error code. Use mysqli_connect_error() to get the error message. By capturing and logging these error messages, database connection issues can be easily identified and resolved, ensuring the smooth running of your application.
Tips and practices for handling Chinese garbled characters in databases with PHP
Mar 27, 2024 pm 05:21 PM
PHP is a back-end programming language widely used in website development. It has powerful database operation functions and is often used to interact with databases such as MySQL. However, due to the complexity of Chinese character encoding, problems often arise when dealing with Chinese garbled characters in the database. This article will introduce the skills and practices of PHP in handling Chinese garbled characters in databases, including common causes of garbled characters, solutions and specific code examples. Common reasons for garbled characters are incorrect database character set settings: the correct character set needs to be selected when creating the database, such as utf8 or u
