This article mainly introduces the configuration information of Asf PHP development resident in the system memory. It has a certain reference value. Now I share it with you. Friends in need can refer to it.

Comparison between traditional MVC and Asf

Traditional MVC framework

The configuration file will be reloaded with each request. Even if the configuration file content has not been updated, it will be reloaded. This is a very bad design. (When Opcache is turned on, there is still execution time)

Asf framework

The content of the read configuration file is saved to the system memory, and the next request goes directly to the memory to read the data. Asf also provides a very simple configuration implementation Config Cache.

In what scenarios is it appropriate to enable Config Cache?

• It is recommended to enable it in web application scenarios. Later versions may enable it by default

• It also takes effect when enabled in CLI and multi-threaded mode, but the PHP script is released every time it is executed.

• ##Supported data types are: strings, arrays, integers, boolean, doubles, floats, null

Flowchart

Enable caching method

<?php ini_set(&#39;asf.cache_config_enable&#39;, 1); /* 开启配置文件缓存 */
ini_set(&#39;asf.cache_config_expire&#39;, 300); /* 设置缓存多少秒之后过期, 300 seconds by default */

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Frame entry way to load php/ ini configuration file

<?php define(&#39;APP_PATH&#39;, dirname(__DIR__));

/* 缓存 config.ini 文件 */
$app = new Asf\Application(APP_PATH . &#39;/config/config.ini&#39;);
$app->run();

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Asf\Config\Php Load php configuration file

<?php $conf_php =  new Asf\Config\Php(CONFIG_PATH . &#39;/config.db.php&#39;);

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Asf\Config\Ini Load ini configuration file

<?php $conf_ini =  new Asf\Config\Ini(CONFIG_PATH . &#39;/config.redis.ini&#39;);

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Read configuration content method

<?php print_r(Asf\Application::getInstance()->getConfig()->toArray());
print_r(Asf\Config::get()->toArray());

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Performance test

With Opcache turned on, we simply did a Config Cache performance test, ab -c100 -n10000

There is a difference between the complexity of the configuration items in the configuration file and the performance indicators. Contact us directly

Enable cache asf.cache_config_enable = 1

Total transferred:      16109994 bytes
HTML transferred:       14259994 bytes
Requests per second:    6859.01 [#/sec] (mean)
Time per request:       14.579 [ms] (mean)
Time per request:       0.146 [ms] (mean, across all concurrent requests)

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No cache

Total transferred:      16080000 bytes
HTML transferred:       14230000 bytes
Requests per second:    6398.22 [#/sec] (mean)
Time per request:       15.629 [ms] (mean)
Time per request:       0.156 [ms] (mean, across all concurrent requests)

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Tips

Cache Config is not based on shared memory, it is based on For PHP processes, there will be no problem with shared memory locks.

The above is the entire content of this article. I hope it will be helpful to everyone's study. For more related content, please pay attention to the PHP Chinese website!

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