ab测试 uwsgi遇到的问题
1 请求并发数目较大时，接收到的数目小于发送的数目
1.1
描述：uwsgi正常返回302跳转
ab -n 5000 -c 250 -g test.log "192.168.50.20:9033/Mapping.do?×××××××&as=1234567"
This is ApacheBench, Version 2.0.40-dev <$Revision: 1.146 $> apache-2.0
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Copyright 2006 The Apache Software Foundation, http://www.apache.org/
Benchmarking 192.168.50.20 (be patient)
Completed 500 requests
Completed 1000 requests
Completed 1500 requests
Completed 2000 requests
Completed 2500 requests
Completed 3000 requests
Completed 3500 requests
Completed 4000 requests
Completed 4500 requests
Finished 5000 requests
Server Software:
Server Hostname: 192.168.50.20
Server Port: 9033
Document Path: /Mapping.do?bfd_nid=behe&as=1234567
Document Length: 0 bytes
Concurrency Level: 250
Time taken for tests: 12.107652 seconds
Complete requests: 5000
Failed requests: 0
Write errors: 0
Non-2xx responses: 4990
Total transferred: 2095800 bytes
HTML transferred: 0 bytes
Requests per second: 412.96 [#/sec] (mean)
Time per request: 605.383 [ms] (mean)
Time per request: 2.422 [ms] (mean, across all concurrent requests)
Transfer rate: 168.98 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 1 42.5 0 3000
Processing: 18 466 1595.9 151 12083
Waiting: 0 446 1536.9 150 12083
Total: 18 467 1601.7 151 12106
Percentage of the requests served within a certain time (ms)
50% 151
66% 165
75% 198
80% 251
90% 389
95% 485
98% 9008
99% 12036
100% 12106 (longest request)
按照上边的结果所示，发送了5000个请求，4990个非2xx相应（Non-2xx responses: 4990）
而查看uwsgi.log发现也只接收到4990个请求。
1.2 只要降低并发就不会出现这样的问题
ab -n 50000 -c 100 -g test.log "192.168.50.20:9033/Mapping.do?bfd_nid=behe&as=1234567"
This is ApacheBench, Version 2.0.40-dev <$Revision: 1.146 $> apache-2.0
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Copyright 2006 The Apache Software Foundation, http://www.apache.org/
Benchmarking 192.168.50.20 (be patient)
Completed 5000 requests
Completed 10000 requests
Completed 15000 requests
Completed 20000 requests
Completed 25000 requests
Completed 30000 requests
Completed 35000 requests
Completed 40000 requests
Completed 45000 requests
Finished 50000 requests
Server Software:
Server Hostname: 192.168.50.20
Server Port: 9033
Document Path: /Mapping.do?bfd_nid=behe&as=1234567
Document Length: 0 bytes
Concurrency Level: 100
Time taken for tests: 85.735172 seconds
Complete requests: 50000
Failed requests: 0
Write errors: 0
Non-2xx responses: 50000
Total transferred: 21000000 bytes
HTML transferred: 0 bytes
Requests per second: 583.19 [#/sec] (mean)
Time per request: 171.470 [ms] (mean)
Time per request: 1.715 [ms] (mean, across all concurrent requests)
Transfer rate: 239.19 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 1.0 0 186
Processing: 4 170 123.1 136 1592
Waiting: 4 170 123.0 136 1592
Total: 4 170 123.1 136 1592
Percentage of the requests served within a certain time (ms)
50% 136
66% 148
75% 159
80% 169
90% 265
95% 403
98% 540
99% 650
100% 1592 (longest request)
1.3 调大listen参数解决问题。
当listen参数变大时，可以提高并发的数目。按道理增大processes数量和增大listen队列长度都可以增大并发能力。但是好像使用listen参数，效果比较显著。难道是后端处理速度太慢，需要缓存更多？
uwsgi.ini:
[uwsgi]
http=0.0.0.0:9033
master=true
pythonpath=../
module=api
processes=30
listen=512
daemonize=uwsgi.log
pidfile=uwsgi.pid
vacuum=true
harakiri=5
harakiri-verbose=true
buffer-size=16384
2
uwsgi.ini:
[uwsgi]
#http=192.168.40.11:9034
http=0.0.0.0:9034
master=true
pythonpath=../
module=breapi
processes=32
listen=512
daemonize=./logs/uwsgi.log
pidfile=uwsgi.pid
vacuum=true
harakiri=5
harakiri-verbose=true
buffer-size=16384
stats = $(HOSTNAME):1734
测试：
ab -n 30000 -c 1000 -g test.log "192.168.40.11:9034/Mapping.do?bfd_nid=behe&as=1234567"
This is ApacheBench, Version 2.0.40-dev <$Revision: 1.146 $> apache-2.0
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Copyright 2006 The Apache Software Foundation, http://www.apache.org/
Benchmarking 192.168.40.11 (be patient)
Completed 3000 requests
Completed 6000 requests
Completed 9000 requests
Completed 12000 requests
Completed 15000 requests
Completed 18000 requests
Completed 21000 requests
Completed 24000 requests
Completed 27000 requests
Finished 30000 requests
Server Software:
Server Hostname: 192.168.40.11
Server Port: 9034
Document Path: /Mapping.do?bfd_nid=behe&as=1234567
Document Length: 0 bytes
Concurrency Level: 1000
Time taken for tests: 12.411582 seconds
Complete requests: 30000
Failed requests: 0
Write errors: 0
Non-2xx responses: 29994
Total transferred: 12597480 bytes
HTML transferred: 0 bytes
Requests per second: 2417.10 [#/sec] (mean)
Time per request: 413.719 [ms] (mean)
Time per request: 0.414 [ms] (mean, across all concurrent requests)
Transfer rate: 991.17 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 4 99.8 0 3000
Processing: 43 299 983.0 126 9234
Waiting: 0 297 976.9 125 9234
Total: 50 304 993.5 126 12070
Percentage of the requests served within a certain time (ms)
50% 126
66% 129
75% 132
80% 134
90% 141
95% 616
98% 3222
99% 3632
100% 12070 (longest request)
ab测试 uwsgi遇到的问题的更多相关文章
- 【转载】AB测试结果分析
AB测试,200个请求,20个并发.这样的测试强度,CPU占了70-80%,w3p占用了70多M内存,本想多测几次,看看它的内存会不会涨上去,没 有测试机器没办法,开发机要干活.我估计CPU就有问题了 ...
- Apache 的ab测试
<!-- 博主所有文章仅是作为自己的笔记 如有不足 请见谅--> Apache的ab测试 和 ab测试 不是一个东西(百度 ab测试可以了解) 网站性能压力测试是服务器网站性能调优过程 ...
- ab测试出现error: connection reset by peer的解决方案
我们在使用一些开源程序之前,可能会使用ab工具在服务器或者本地进行一次性能评估,但是很多时候却总是会以失败告终,因为,服务器会拒绝你的ab工具发出的http请求, 出现 error: connecti ...
- 算法效果AB测试中的PV-UV不对称性
(转载请注明原创于潘多拉盒子) 算法效果的AB测试,是指在相同的应用场景下,对比不同算法的效果.通常的做法是,按照PV或UV随机分配流量到算法上,计算算法的CTR或转化率进行对比.为了表述简单,我们假 ...
- Apache ab 测试工具使用(一)
简述: 试用apache ab测试工具 下载点 http://httpd.apache.org/download.cgi 参考: http://jingyan.baidu.com/article/e3 ...
- 使用apache benchmark(ab) 测试报错汇总
1.socket: Too many open files (24) 解决方法: [root@zabbix ~]# ulimit -a core file size (blocks, -c) 0 da ...
- Apache ab测试工具使用方法（无参、get传参、post传参）
Ab测试工具是apache自带的测试工具,具有简单易上手的特性,下面我总结一下我的使用方法,首先去官方下载apache程序包,我下的最新版本apache2.4.23,下载地址http://httpd. ...
- 多臂机测试， AB测试
bandit 强盗,土匪:恶棍:敲诈者 ['bændɪt] 多臂机 multi-armed bandit MAB 简写. one-arm bandit tiger ji 是一种自动AB测试的方 ...
- 网易郑栋：数据采集与分析的那些事——从数据埋点到AB测试
本文由 网易云发布. 4月8日晚,DTalk邀请到了网易互联网分析产品.可视化 BI 产品的负责人—郑栋老师,进行了一次关于<网易郑栋:数据采集与分析的那些事第一弹: 数据篇>的主题分享 ...
随机推荐
- Neutron网络性能测试与分析（一） CVR
测试环境:网络节点运行在Intel(R) Xeon(R) CPU E5-2630 v3服务器上,网卡使用intel的万兆卡82599ES 测试仪使用本人基于dpdk编写的程序,基本上可以打满万兆卡,小 ...
- A. Brain's Photos ——Codeforces Round #368 (Div. 2)
A. Brain's Photos time limit per test 2 seconds memory limit per test 256 megabytes input standard i ...
- 设计模式--静态工厂设计模式在android中的使用
今天看到这篇文章:http://www.androiddesignpatterns.com/2012/05/using-newinstance-to-instantiate.html public c ...
- ios 给view添加一个渐变的背景色
CAGradientLayer *gradientLayer = [[CAGradientLayer alloc] init]; gradientLayer.colors = @[(__bridge ...
- ob_get_contents()
ob_start();//buf1 echo 'multiple'; ob_start();//buf2 echo 'bufferswork'; $buf2 = ob_get_contents(); ...
- document.domain的修改问题
有时候,需要修改document.domain. 典型的情形:http://a.xxx.com/A.htm 的主页面有一个<iframe src="http://b.xxx.com/B ...
- find文件后cp、rm
复制: find <src-path> -name 'some names' -exec cp {} <dest-path> \; find <src-path> ...
- Linux下开启nfs服务
1.什么是NFS(Network FileSystem) NFS 就是 Network FileSystem 的缩写,最早之前是由 Sun 所发展出来的.他最大的功能就是可以透过网络,让不同的机器.不 ...
- LeetCode OJ 61. Rotate List
Given a list, rotate the list to the right by k places, where k is non-negative. For example:Given 1 ...
- [tableView dequeueReusableCellWithIdentifier:CellIdentifier] 后面forIndexPath:indexPath参数的解释
解决以下错误: *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'u ...