虚拟机内tomcat6系统软硬调优

vincen

　　app-server调优完成
以下为单台虚拟机tomcat-APP-SERVER性能
　　未做优化前
###1000并发，访问50万次，
[root@init ~]# ab -c 1000 -n 500000 http://www.xxx.com.cn/
This is ApacheBench, Version 2.0.40-dev  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 www.xxx.com.cn (be patient)
Completed 50000 requests
Completed 100000 requests
Completed 150000 requests
Completed 200000 requests
Completed 250000 requests
Completed 300000 requests
Completed 350000 requests
Completed 400000 requests
Completed 450000 requests
Finished 500000 requests
Server Software: Apache-Coyote/1.1
Server Hostname: www.xxx.com.cn
Server Port: 80
Document Path: /
Document Length: 15441 bytes
Concurrency Level: 1000
Time taken for tests: 310.793616 seconds
Complete requests: 500000
Failed requests: 0
Write errors: 0
Total transferred: 7836000000 bytes
HTML transferred: 7720500000 bytes
Requests per second: 1608.78 /sec (mean)
Time per request: 621.587 [ms] (mean)
Time per request: 0.622 [ms] (mean, across all concurrent requests)
Transfer rate: 24621.95 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 505 2186.7 0 92988
Processing: 1 105 558.9 63 27229
Waiting: 0 98 558.8 58 27165
Total: 1 610 2273.4 65 93056
Percentage of the requests served within a certain time (ms)
50% 65
66% 79
75% 98
80% 121
90% 3035
95% 3083
98% 9049
99% 9083
100% 93056 (longest request)
###优化后
###1000并发，访问50万次，
[root@init ~]# ab -c 1000 -n 500000 http://www.xxx.com.cn/;date
This is ApacheBench, Version 2.0.40-dev  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 www.xxx.com.cn (be patient)
Completed 50000 requests
Completed 100000 requests
Completed 150000 requests
Completed 200000 requests
Completed 250000 requests
Completed 300000 requests
Completed 350000 requests
Completed 400000 requests
Completed 450000 requests
Finished 500000 requests
Server Software: Apache-Coyote/1.1
Server Hostname: www.xxx.com.cn
Server Port: 80
Document Path: /
Document Length: 15441 bytes
Concurrency Level: 1000
Time taken for tests: 159.443106 seconds
Complete requests: 500000
Failed requests: 0
Write errors: 0
Total transferred: 7836000000 bytes
HTML transferred: 7720500000 bytes
Requests per second: 3135.92 /sec (mean)
Time per request: 318.886 [ms] (mean)
Time per request: 0.319 [ms] (mean, across all concurrent requests)
Transfer rate: 47994.20 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 256 1298.1 2 45016
Processing: 3 57 107.9 41 3713
Waiting: 1 42 106.0 27 3650
Total: 3 314 1305.2 45 45331
Percentage of the requests served within a certain time (ms)
50% 45
66% 56
75% 67
80% 76
90% 146
95% 3040
98% 3088
99% 3243
100% 45331 (longest request)
#########before
Requests per second: 1608.78 /sec (mean)
Time per request: 621.587 [ms] (mean)
Time per request: 0.622 [ms] (mean, across all concurrent requests)
Transfer rate: 24621.95 [Kbytes/sec] received
########after
Requests per second: 3135.92 /sec (mean)
Time per request: 318.886 [ms] (mean)
Time per request: 0.319 [ms] (mean, across all concurrent requests)
Transfer rate: 47994.20 [Kbytes/sec] received
####
在软件与硬件调整下，单台主机性能提升明显