Test Site performance with the AB command

Ab use of stress test tools

[[email protected] ~]# ab -n1000 -c10 http://192.168.116.193/index.html      #表示每次并发10个请求, a total of 1000 requests this is apachebench, version 2.3< $Revision:  655654 $>copyright 1996 adam twiss, zeus technologyltd, http:// www.zeustech.net/Licensed to The Apache Software Foundation,http://www.apache.org/  Benchmarking 192.168.116.193  (be patient) completed 100 requestscompleted  200 requestscompleted 300 requestscompleted 400 requestscompleted 500  requestscompleted 600 requestscompleted 700 requestscompleted 800  Requestscompleted 900 requestscompleted 1000 requestsfinished 1000 requests   Server Software:        nginx/1.0.15                 #平台apache   Version server hostname:         192.168.116.193             #服务器主机名Server  Port:            80                            #服务器端口  document path:          / index.html                # Test the page document length:        3698 bytes                   #测试页面大小  concurrency  Level:      10                           #并发数Time  taken for tests:    0.577 seconds                #整个测试耗时Complete  requests:      1000                        # Total number of requests completed failed requests:        0                             #表示失败的总请求数, the failure here refers to the request in connection with the server, send data, receive data and other aspects of the exception, and no response timeout, etc. write errors:            0                           # Number of network connection write errors Total transferred:      3917820 bytes                #测试过程中产生的网络传输总量HTML  transferred:       3705396  bytes              # The amount of HTML traffic generated during the test requests per second:    1733.55 [#/sec]  (mean)        #表示服务器吞吐量, number of transactions per second,  mean  in parentheses this is an average time per request:        5.768 [ms]  (mean)             #表示用户请求的平均响应时间, mean in parentheses indicates that this is an average time per request:        0.577 [ms]  (mean, across all concurrentrequests)    # Represents the average server request processing time, which is the average of the actual elapsed time transfer rate:           6632.57 [kbytes/sec] received       #表示这些请求在单位时间内从服务器获取的数据长度 to help troubleshoot problems with extended response times due to excessive network traffic  Connection Times  (MS) &NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;MIN&NBSP;&NBSP;MEAN[+/-SD]  median   maxconnect:        0   2    5.5      2     85Processing:      1   3   6.3      2      84Waiting:        0   2    5.1      2     82Total:           2   5   8.8       4    100# the decomposition of the time consumed on the network, representing the length of data that these requests get from the server within a unit of time  percentage of the  requests served within acertain time  (MS)  50%      4 66%       5 75%      5 80%       5 90%      6 95%      9  98%     19 99%     80 100%    100  (longest request) #整个场景中所有请求的响应情况. Each request in the scene has a response time, where 50% of the user's response time is less than 4 milliseconds, 60% of the user response time is less than 5 milliseconds, and the maximum response time is less than 100  milliseconds

Ab Command parameter comments:

-N #指定在测试会话中所执行的请求个数. By default, only one request is executed. -C #指定一次产生的请求个数. The default is one at a time. -T #测试所进行的最大秒数. Its internal implied value is-n 50000. It allows you to limit the testing of the server to a fixed total time.     By default, there is no time limit.  -P #包含了需要POST的数据的文件. -T #POST数据所使用的Content-type header information. -V #设置显示信息的详细程度-4 or greater displays header information, 3 or greater values can display response codes (404, 200, etc.), and 2 or greater values can display warnings and other information.     -V Displays the version number and exits. -W #以HTML表的格式输出结果.     By default, it is a table with a two-column width on a white background. -I #执行HEAD请求, not get.

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Test Site performance with the AB command