tmpfs小测试

Aug

2008

比如网站文件路径（试试把要处理的文件加载成tmpfs）：
/Data/webapps/www.aslibra.com/php/
cache文件路径（试试读写tmpfs）：
/tmp/www/

本次测试有缓存机制，是判断文件是否有效，有效则直接返回缓存的文件，测试的方式也许不太正确，测试的结果不是太如意，感觉tmpfs提升不了我现在的情况。

基本用法：

mkdir /tmp/www
mount tmpfs /tmp/www -t tmpfs -o size=1m

不使用缓存机制：

ab -n 1000 http://www3.aslibra.com/

Total transferred: 47612000 bytes
HTML transferred: 47340000 bytes
Requests per second: 9.55 [#/sec] (mean)
Time per request: 104.719 [ms] (mean)
Time per request: 104.719 [ms] (mean, across all concurrent requests)
Transfer rate: 444.01 [Kbytes/sec] received

把PHP文件加入到tmpfs：

mount tmpfs /Data/webapps/www.aslibra.com/php/ -t tmpfs -o size=50m
ab -n 1000 http://www3.aslibra.com/

Total transferred: 47612000 bytes
HTML transferred: 47340000 bytes
Requests per second: 11.60 [#/sec] (mean)
Time per request: 86.188 [ms] (mean)
Time per request: 86.188 [ms] (mean, across all concurrent requests)
Transfer rate: 539.47 [Kbytes/sec] received

把cache文件加入到tmpfs：

mount tmpfs /tmp/www -t tmpfs -o size=1m
ab -n 1000 http://www3.aslibra.com/

Total transferred: 47612000 bytes
HTML transferred: 47340000 bytes
Requests per second: 11.59 [#/sec] (mean)
Time per request: 86.281 [ms] (mean)
Time per request: 86.281 [ms] (mean, across all concurrent requests)
Transfer rate: 538.89 [Kbytes/sec] received

加入缓存机制：

ab -n 1000 http://www3.aslibra.com/

Total transferred: 47517096 bytes
HTML transferred: 47340000 bytes
Requests per second: 119.18 [#/sec] (mean)
Time per request: 8.391 [ms] (mean)
Time per request: 8.391 [ms] (mean, across all concurrent requests)
Transfer rate: 5530.34 [Kbytes/sec] received

不使用tmpfs：

umount tmpfs
（也许有可能无法umount，多试试，或者关闭打开该目录的程序）

Total transferred: 47517000 bytes
HTML transferred: 47340000 bytes
Requests per second: 119.85 [#/sec] (mean)
Time per request: 8.344 [ms] (mean)
Time per request: 8.344 [ms] (mean, across all concurrent requests)
Transfer rate: 5561.41 [Kbytes/sec] received

测试效果不是太理想，但也许memcache会效果好些

原创内容如转载请注明：来自阿权的书房

收藏本文到网摘