apache-httpd2.2.17性能测试
在apache_home/bin目录下常用的命令如下:
ab -n 1000 -c 250 http://127.0.0.1:80/
其中-n带表请求数,-c代表并发数
然后就可以看到一些相关性能的指标
输入命令:
./ab -n 100 -c 4 http://www.baidu.com/
输出结果:
This is ApacheBench, Version 2.3 <$Revision: 655654 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking www.baidu.com (be patient).....done
Server Software: BWS/1.0
Server Hostname: www.baidu.com
Server Port: 80
Document Path: /
Document Length: 7410 bytes
Concurrency Level: 4
Time taken for tests: 2.006 seconds
Complete requests: 100
Failed requests: 0
Write errors: 0
Total transferred: 779200 bytes
HTML transferred: 741000 bytes
Requests per second: 49.85 [#/sec] (mean)
Time per request: 80.239 (mean)
Time per request: 20.060 (mean, across all concurrent requests)
Transfer rate: 379.34 received
Connection Times (ms)
minmean[+/-sd] median max
Connect: 3 7 3.0 7 19
Processing: 11 71 191.7 19 1420
Waiting: 4 1019.9 7 204
Total: 15 78 192.0 26 1430
Percentage of the requests served within a certain time (ms)
50% 26
66% 30
75% 32
80% 34
90% 228
95% 435
98% 846
99% 1430
100% 1430 (longest request)
名字解释:
Server Software:表示被测试的Web服务器软件名称
Server Hostname:请求的URL中的主机部分名称
Server Port:被测试的WEB服务器的监听端口
Document Path:表示URL中的根据对路径
Document Length:http响应数据的正文长度
Concurrency Level:表示并发用户数(-c)
Time taken for tests:所有请求被处理完所花费的总时间
Complete requests:总请求数(-n)
Failed requests:失败请求数
Total transferred:所有请求的响应数据长度和，包括头和正文
HTML transferred:所有请求的响应数据中，正文数据的和
Requests per second:吞吐率
Time per request:用户平均请求等待时间 = time taken for tests / (complete requests / concurrency level)
Time per request:服务器平均请求处理时间 = 吞吐率的倒数 = time per request / concurrency level
Transfer rate:请求在单位时间内，从服务器获的数据长度
Percentage of the requests served within a certain time (ms):请求处理时间的分布情况
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