php – 如何提高codeigniter的性能

我有一个用Codeigniter编写的程序,退出时结果非常慢.

当我调试程序时,我意识到有一个持续10秒的步骤

Session: Class initialized using ‘files’ driver

这是完整的调试

INFO - 2017-09-20 12:56:05 --> Config Class Initialized
INFO - 2017-09-20 12:56:05 --> Hooks Class Initialized
DEBUG - 2017-09-20 12:56:05 --> UTF-8 Support Enabled
INFO - 2017-09-20 12:56:05 --> Utf8 Class Initialized
INFO - 2017-09-20 12:56:05 --> URI Class Initialized
INFO - 2017-09-20 12:56:05 --> Router Class Initialized
INFO - 2017-09-20 12:56:05 --> Output Class Initialized
INFO - 2017-09-20 12:56:06 --> Security Class Initialized
DEBUG - 2017-09-20 12:56:06 --> Global POST,GET and COOKIE data sanitized
INFO - 2017-09-20 12:56:06 --> Input Class Initialized
INFO - 2017-09-20 12:56:06 --> Language Class Initialized
INFO - 2017-09-20 12:56:06 --> Loader Class Initialized
INFO - 2017-09-20 12:56:06 --> Helper loaded: url_helper
INFO - 2017-09-20 12:56:06 --> Controller Class Initialized
INFO - 2017-09-20 12:56:06 --> Database Driver Class Initialized
INFO - 2017-09-20 12:56:06 --> Helper loaded: string_helper
INFO - 2017-09-20 12:56:06 --> Helper loaded: form_helper
INFO - 2017-09-20 12:56:06 --> Helper loaded: language_helper
DEBUG - 2017-09-20 12:56:06 --> Session: "sess_save_path" is empty; using "session.save_path" value from PHP.ini.
INFO - 2017-09-20 12:56:06 --> Session: Class initialized using 'files' driver.
INFO - 2017-09-20 12:56:16 --> Language file loaded: language/french/messages_lang.PHP
INFO - 2017-09-20 12:56:16 --> File loaded: C:\wamp\www\SESAME\application\views\template/header.PHP
INFO - 2017-09-20 12:56:16 --> File loaded: C:\wamp\www\SESAME\application\views\connect_user.PHP
INFO - 2017-09-20 12:56:16 --> File loaded: C:\wamp\www\SESAME\application\views\template/footer.PHP
INFO - 2017-09-20 12:56:16 --> Final output sent to browser
DEBUG - 2017-09-20 12:56:16 --> Total execution time: 10.8679

你能帮我找到这种低性能的原因吗？

解决方法

我认为“Session：Class使用’files’驱动程序初始化.”花时间.

文件驱动：
‘files’驱动程序使用您的文件系统存储会话数据.

根据Codeigniter Session文档,您可以更改数据库或其他位置(如文件,redis,memcached)中的存储引擎会话.

$config['sess_driver'] = 'database';
$config['sess_save_path'] = 'ci_sessions';


CREATE TABLE IF NOT EXISTS `ci_sessions` (
        `id` varchar(128) NOT NULL,`ip_address` varchar(45) NOT NULL,`timestamp` int(10) unsigned DEFAULT 0 NOT NULL,`data` blob NOT NULL,KEY `ci_sessions_timestamp` (`timestamp`)
);

此外,您可以设置绝对路径：

更具体地说,它不支持在session.save_path中使用的PHP的目录级别和模式格式,并且它具有为安全而硬编码的大多数选项.相反,$config [‘sess_save_path’]仅支持绝对路径.