How to optimize Discuz forum performance?

How to optimize Discuz forum performance?

Introduction:
Discuz is a commonly used forum system, but it may encounter performance bottlenecks during use. In order to improve the performance of Discuz Forum, we can optimize it from many aspects, including database optimization, cache settings, code adjustment, etc. The following will introduce how to optimize the performance of the Discuz forum through specific operations and code examples.

1. Database optimization:

1. Index optimization: Creating indexes for frequently used query fields can greatly improve query speed. For example, you can create an index for the uid field in the posts table.

   CREATE INDEX idx_uid ON pre_forum_post(uid);

2. Table optimization: Regularly using the optimize table command to optimize database tables can improve database performance.

   OPTIMIZE TABLE pre_forum_post;

3. SQL optimization: Write SQL statements reasonably to avoid unnecessary queries and repeated queries, and improve database execution efficiency.

   SELECT * FROM pre_forum_thread WHERE fid = 1 AND displayorder = 0 LIMIT 10;

2. Cache settings:

1. Use Memcached for data caching: store frequently read data in Memcached to reduce database pressure , improve access speed.

   require_once './source/class/class_memcache.php';
   $memcache = new discuz_memcache();
   $value = $memcache->get('data_key');
   if(empty($value)){
    $data = // 从数据库获取数据
    $memcache->set('data_key', $data, 3600);
   } else {
    $data = $value;
   }

2. Use Redis for page-level caching: store page content in Redis, reduce background calculations, and improve page response speed.

   $redis = new Redis();
   $redis->connect('127.0.0.1', 6379);
   $html = $redis->get('page_key');
   if(empty($html)){
    $html = // 生成页面内容
    $redis->set('page_key', $html, 3600);
   }
   echo $html;

3. Code adjustment:

1. Front-end code compression and merging: Compress and merge front-end CSS and JS files to reduce HTTP requests and speed up Page loading speed.

   <link rel="stylesheet" href="all.min.css">
   <script src="all.min.js"></script>

2. Reduce image size: For image resources in the forum, try to compress the image size as much as possible to reduce loading time.

   <img  src="/static/imghwm/default1.png"  data-src="image.jpg"  class="lazy"   style="max-width:90%" alt="How to optimize Discuz forum performance?" >

Conclusion:
Through the above database optimization, cache settings and code adjustments, we can effectively improve the performance of the Discuz forum, speed up page loading, and improve user experience. In practical applications, we can also make further optimization and adjustments according to specific circumstances to continuously improve the performance of the forum.

The above are the specific operations and code examples on how to optimize the performance of the Discuz forum. I hope it will be helpful to you.

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