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Old 05-14-2011, 03:18 PM   #1
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Default Timberland 2010 Winter Warm Shoe25531

Siege:压力模拟/测试工具
作者:车东 发表于:2004-02-13 20:02 最后更新于:2006-12-21 13:12
版权声明:可以任意转载,转载时请务必以超链接形式标明文章原始出处和作者信息及本声明。
http://www.chedong.com/blog/archives/000033.html
--------------------------------------------------------------------------------
Siege(英文意思是围攻)是一个压力测试和评测工具,设计用于WEB开发这评估应用在压力下的承受能力 :可以根据配置对一个WEB站点进行多用户的并发访问,supra skytop uk,记录每个用户所有请求过程的相应时间,并在一定数量的并发访问下重复进行,Timberland 2010 Winter Warm Shoe
最早使用的压力测试工具是apache的ab(apache benchmark),apache ab做重复压力测试不错,但是每次只能测试一个链接,womens timberland roll top,如何测试一组链接(比如从日志中导出的1个小时的日志,做真实压力测试),后来找到了这个:
Siege是一个压力测试和评测工具,jimmy choo outlet,设计用于WEB开发这评估应用在压力下的承受能力:可以根据配置对一个WEB站点进行多用户 的并发访问,Juicy Couture USA04166,Air Jordan 1 High Heels,记录每个用户所有请求过程的相应时间,mbt footwear,并在一定数量的并发访问下重复进行,mbt clearance95956,Sebago Docksides Boat Sole
SIEGE is an http regressive testing and benchmarking utility. It was designed to let web developers measure the performance of their code under duress, to see how it will stand up to load on the internet. It lets the user hit a webserver with a configurable number of concurrent simulated users. Those users place the webserver "under siege." The duration of the siege is measured in transactions, the sum of simulated users and the number of times each simulated user repeats the process of hitting the server. Thus 20 concurrent users 50 times is 1000 transactions,supra store, the length of the test.
下载/安装
Siege时一个开放源代码项目:http://www.joedog.org
下载:
wget ftp://sid.joedog.org/pub/siege/siege-latest.tar.gz
安装:
%./configure ; make
#make install
siege包含了一组压力测试工具:
SIEGE (1) Siege是一个HTTP压力测试和评测工具.
使用样例:
任务列表:www.chedong.com.url文件
http://www.chedong.com/tech/
http://www.chedong.com/tech/acdsee.html
http://www.chedong.com/tech/ant.html
http://www.chedong.com/tech/apache_install.html
http://www.chedong.com/tech/awstats.html
http://www.chedong.com/tech/cache.html
http://www.chedong.com/tech/click.html
http://www.chedong.com/tech/cms.html
http://www.chedong.com/tech/compress.html
http://www.chedong.com/tech/cvs_card.html
http://www.chedong.com/tech/default.html
http://www.chedong.com/tech/dev.html
http://www.chedong.com/tech/gnu.html
....
siege -c 20 -r 2 -f www.chedong.com.url
参数说明:
-c 20 并发20个用户
-r 2 重复循环2次
-f www.chedong.com.url 任务列表:URL列表
输出样例:
** Siege 2.59
** Preparing 20 concurrent users for battle. 这次“战斗”准备了20个并发用户
The server is now under siege.. done. 服务在“围攻”测试中:
Transactions: 40 hits 完成40次处理
Availability: 100.00 % 成功率
Elapsed time: 7.67 secs 总共用时
Data transferred: 877340 bytes 共数据传输:877340字节
Response time: 1.65 secs 相应用时1.65秒:显示网络连接的速度
Transaction rate: 5.22 trans/sec 平均每秒完成5.22次处理:表示服务器后台处理的速度
Throughput: 114385.92 bytes/sec 平均每秒传送数据:114385.92字节
Concurrency: 8.59 最高并发数 8.59
Successful transactions: 40 成功处理次数
Failed transactions: 0 失败处理次数
注意:由于速度很快,可能会达不到并发速度很高就已经完成,mens shirt clearance。Response time显示的是测试机器和被测试服务器之间网络链接状况。Transaction rate则表示服务器端任务处理的完成速度。
辅助工具:
增量压力测试:
为了方便增量压力测试,asics shoes australia,juicy couture pink handbag74343,siege还包含了一些辅助工具:
bombardment (1)
是一个辅助工具:用于按照增量用户压力测试:
使用样例:
bombardment urlfile.txt 5 3 4 1
初始化URL列表:urlfile.txt
初始化为:5个用户
每次增加:3个用户
运行:4次
每个客户端之间的延迟为:1秒
输出成CSV格式:
siege2csv.pl (1)
siege2csv.pl将bombardment的输出变成CSV格式:
Time Data Transferred Response Time Transaction Rate Throughput Concurrency Code 200 (note that this is horribly broken.)
242 60.22 603064 0.02 4.02 10014.35 0.08
605 59.98 1507660 0.01 10.09 25136.05 0.12
938 59.98 2337496 0.02 15.64 38971.26 0.26
1157 60 2883244 0.04 19.28 48054.07 0.78
参考:
开源测试工具:http://www.opensourcetesting.org/performance.php
压力测试工具:HammerHead 正在试用中
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