debian上快速安装xcache
作者：admin，2010年一月5日 8:28 上午，分类：linux, php
不用phpize安装了，debian上可以迅速安装上，需要保证你的/etc/apt/sources.list下面是新的。
然后直接 apt-get install php5-xcache
/etc/init.d/apache2 restart
很快就看到结果了。可以用phpinfo看下。
php -r “phpinfo();”|grep “xcache”
/etc/php5/cli/conf.d/xcache.ini,
xcache.admin.enable_auth => On => On
xcache.cacher => On => On
xcache.coredump_directory => no value => no value
xcache.count => 1 => 1
xcache.coveragedump_directory => no value => no value
xcache.coverager => Off => Off
xcache.gc_interval => 0 => 0
xcache.mmap_path => /dev/zero => /dev/zero
xcache.optimizer => On => On
xcache.readonly_protection => no value => no value
xcache.shm_scheme => mmap => mmap
xcache.size => 0 => 0
xcache.slots => 8K => 8K
xcache.stat => On => On
xcache.test => no value => no value
xcache.ttl => 0 => 0
xcache.var_count => 1 => 1
xcache.var_gc_interval => 300 => 300
xcache.var_maxttl => 0 => 0
xcache.var_size => 0M => 0M
xcache.var_slots => 8K => 8K
xcache.var_ttl => 0 => 0
上面的就是配置相关信息，如果xcache_size=0就是关闭xcache的使用
具体配置参数的意义可以参考http://xcache.lighttpd.net/wiki/XcacheIni#XCacheCacher
然后可以做下压力测试，看看结果。
ab -c5 -n3000 http://liufb.kuxun.cn 并发连接为5，3000次请求
具体我用的是sudo ab -n 1000 http://liufb.kuxun.cn/beijing
安装xcache后的
Server Software: Apache/2.2.9
Server Hostname: liufb.kuxun.cn
Server Port: 80
Document Path: /beijing
Document Length: 98026 bytes
Concurrency Level: 1
Time taken for tests: 373.665 seconds
Complete requests: 1000
Failed requests: 974
(Connect: 0, Receive: 0, Length: 974, Exceptions: 0)
Write errors: 0
Total transferred: 97639210 bytes
HTML transferred: 97172210 bytes
Requests per second: 2.68 [#/sec] (mean)
Time per request: 373.665 [ms] (mean)
Time per request: 373.665 [ms] (mean, across all concurrent requests)
Transfer rate: 255.18 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 0.0 0 0
Processing: 330 374 191.1 347 3689
Waiting: 139 188 190.8 162 3502
Total: 330 374 191.1 347 3689
Percentage of the requests served within a certain time (ms)
50% 347
66% 352
75% 355
80% 359
90% 374
95% 414
98% 753
99% 1298
100% 3689 (longest request)
Server Software: Apache/2.2.9
Server Hostname: liufb.kuxun.cn
Server Port: 80
Document Path: /beijing
Document Length: 96315 bytes
Concurrency Level: 1
Time taken for tests: 401.374 seconds
Complete requests: 1000
Failed requests: 914
(Connect: 0, Receive: 0, Length: 914, Exceptions: 0)
Write errors: 0
Total transferred: 97633782 bytes
HTML transferred: 97166782 bytes
Requests per second: 2.49 [#/sec] (mean)
Time per request: 401.374 [ms] (mean)
Time per request: 401.374 [ms] (mean, across all concurrent requests)
Transfer rate: 237.55 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 0.0 0 0
Processing: 372 401 81.0 390 1504
Waiting: 185 213 80.5 202 1311
Total: 372 401 81.0 390 1504
Percentage of the requests served within a certain time (ms)
50% 390
66% 394
75% 398
80% 400
90% 413
95% 443
98% 561
99% 749
100% 1504 (longest request)
后用webbench测试结果可以看到：
没有安装xcache的测试。
liufb@kooxoo240:~/webbench/webbench-1.5$ webbench -c1000 -t 20 http://liufb.kuxun.cn/
Webbench – Simple Web Benchmark 1.5
Copyright (c) Radim Kolar 1997-2004, GPL Open Source Software.
Benchmarking: GET http://liufb.kuxun.cn/
1000 clients, running 20 sec.
Speed=903 pages/min, 318838 bytes/sec.
Requests: 301 susceed, 0 failed.
xcache的测试 xcache.size = 32M
liufb@kooxoo240:~/webbench/webbench-1.5$ webbench -c1000 -t 20 http://liufb.kuxun.cn/
Webbench – Simple Web Benchmark 1.5
Copyright (c) Radim Kolar 1997-2004, GPL Open Source Software.
Benchmarking: GET http://liufb.kuxun.cn/
1000 clients, running 20 sec.
Speed=2388 pages/min, 430682 bytes/sec.
Requests: 796 susceed, 0 failed.
真的安装不上可以看
http://www.howtoforge.com/xcache-php5-apache2-debian-etch