{"id":30817,"date":"2026-05-18T16:00:00","date_gmt":"2026-05-18T08:00:00","guid":{"rendered":"https:\/\/cn.hostease.com\/blog\/?p=30817"},"modified":"2026-05-17T07:14:41","modified_gmt":"2026-05-16T23:14:41","slug":"php-fpm-opcache-practical","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/blog\/linux\/php-fpm-opcache-practical\/","title":{"rendered":"PHP-FPM \u4e0e OPcache \u6027\u80fd\u8c03\u4f18\u5b9e\u6218"},"content":{"rendered":"<p><img decoding=\"async\" alt=\"PHP-FPM \u4e0e OPcache \u6027\u80fd\u8c03\u4f18\u5b9e\u6218\u5168\u666f\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/05\/php-fpm-opcache-practical-cover.webp\" \/><\/p>\n<p>\u672c\u6587\u6559\u4f60\u5982\u4f55\u5728\u4e00\u53f0\u56db\u6838\u516b GB \u5185\u5b58\u7684 Linux \u670d\u52a1\u5668\u4e0a\uff0c\u628a PHP-FPM \u4e0e OPcache \u7cfb\u7edf\u5730\u8c03\u5230\u4e00\u4e2a\u5408\u7406\u7684\u5de5\u4f5c\u70b9\uff0c\u8ba9 WordPress \u6216\u81ea\u7814 PHP \u5e94\u7528\u5728\u9762\u5bf9\u7a81\u53d1\u6d41\u91cf\u65f6\u4e0d\u518d\u9891\u7e41\u8fd4\u56de 502\uff0c\u4e5f\u4e0d\u4f1a\u56e0\u4e3a\u8fdb\u7a0b\u6570\u5931\u63a7\u76f4\u63a5\u88ab\u7cfb\u7edf\u7684\u5185\u5b58\u6ea2\u51fa\u5b88\u62a4\u8fdb\u7a0b\u5e72\u6389\u3002\u4e3a\u4ec0\u4e48\u8fd9\u4e24\u4e2a\u7ec4\u4ef6\u9700\u8981\u4e00\u8d77\u8c03\u800c\u4e0d\u80fd\u5206\u5f00\u770b\uff1f\u56e0\u4e3a PHP-FPM \u51b3\u5b9a\u7684\u662f\u540e\u7aef\u5230\u5e95\u6709\u51e0\u4e2a\u8fdb\u7a0b\u5728\u5e76\u884c\u5904\u7406\u8bf7\u6c42\uff0cOPcache \u51b3\u5b9a\u7684\u662f\u6bcf\u4e2a\u8fdb\u7a0b\u5728\u5e72\u6d3b\u65f6\u8fd8\u8981\u4e0d\u8981\u91cd\u65b0\u89e3\u6790\u548c\u7f16\u8bd1 PHP \u6e90\u6587\u4ef6\uff0c\u4e24\u8005\u7684\u5185\u5b58\u8d26\u76ee\u5fc5\u987b\u5408\u8d77\u6765\u7b97\u624d\u4e0d\u4f1a\u5728\u5cf0\u503c\u65f6\u649e\u5899\u3002\u8bfb\u5b8c\u672c\u6587\u4f60\u4f1a\u62ff\u5230\u4e09\u4efd\u53ef\u4ee5\u76f4\u63a5\u843d\u5730\u7684\u4ea7\u51fa\uff1a\u4e00\u4efd\u6309\u7269\u7406\u5185\u5b58\u53cd\u63a8\u8fdb\u7a0b\u6570\u7684\u8ba1\u7b97\u6a21\u677f\u3001\u4e00\u7ec4\u540c\u65f6\u9002\u914d WordPress \u7ad9\u70b9\u4e0e API \u578b\u8d1f\u8f7d\u7684\u53c2\u6570\u5bf9\u7167\u8868\uff0c\u4ee5\u53ca\u4e00\u5957\u4e0a\u7ebf\u540e\u7528\u538b\u6d4b\u5de5\u5177\u4e0e\u72b6\u6001\u63a5\u53e3\u505a\u547d\u4e2d\u7387\u590d\u76d8\u7684\u6807\u51c6\u6d41\u7a0b\u3002\u672c\u6587\u793a\u4f8b\u7edf\u4e00\u4ee5 PHP 8.2\u3001Nginx \u4e0e Debian 12 \u4e3a\u57fa\u7840\u73af\u5883\u3002<\/p>\n<h2>\u4e00\u3001\u4e3a\u4ec0\u4e48\u4e0d\u80fd\u7167\u642c\u522b\u4eba\u8d34\u7684\u914d\u7f6e<\/h2>\n<p>\u793e\u533a\u91cc\u5230\u5904\u90fd\u80fd\u770b\u5230\u73b0\u6210\u7684 PHP-FPM \u914d\u7f6e\u7247\u6bb5\uff0c\u4f46\u5b83\u4eec\u6700\u5927\u7684\u95ee\u9898\u662f\u4ece\u6765\u4e0d\u4ea4\u4ee3\u670d\u52a1\u5668\u89c4\u683c\u4e0e\u4e1a\u52a1\u753b\u50cf\u3002\u4e00\u4efd\u5728\u5341\u516d GB \u673a\u5668\u4e0a\u8dd1\u5f97\u5f88\u8212\u670d\u7684 pm.max_children = 50\uff0c\u642c\u5230\u53ea\u6709\u56db GB \u5185\u5b58\u7684\u5c0f\u673a\u5668\u4e0a\u8dd1 WordPress\uff0c\u51e0\u4e4e\u4e00\u5b9a\u4f1a\u5728\u7b2c\u4e00\u6b21\u6d41\u91cf\u5c0f\u9ad8\u5cf0\u65f6\u628a\u5185\u5b58\u5403\u5149\uff0c\u7136\u540e\u88ab\u5185\u6838\u91cc\u7684\u5185\u5b58\u6ea2\u51fa\u5b88\u62a4\u8fdb\u7a0b\u4e00\u5200\u5e72\u6389\u3002<\/p>\n<p>\u8c03\u53c2\u4e4b\u524d\u4f60\u5fc5\u987b\u5148\u56de\u7b54\u6e05\u695a\u4e09\u4e2a\u95ee\u9898\uff1a\u5355\u4e2a PHP \u8fdb\u7a0b\u5728\u4f60\u8fd9\u5957\u4ee3\u7801\u4e0a\u7684\u7a33\u6001\u5185\u5b58\u5360\u7528\u662f\u591a\u5c11\uff1f\u4f60\u80fd\u7ed9 PHP-FPM \u8fd9\u4e2a\u7ec4\u4ef6\u5b9e\u9645\u9884\u7559\u591a\u5c11\u7269\u7406\u5185\u5b58\uff1f\u4f60\u7684\u5e94\u7528\u6574\u4f53\u4e0a\u662f\u8ba1\u7b97\u5bc6\u96c6\u578b\u8fd8\u662f IO \u5bc6\u96c6\u578b\uff1f<\/p>\n<p>\u7b2c\u4e00\u4e2a\u95ee\u9898\u7528 ps -ylC php-fpm8.2 &#8211;sort:rss \u770b RSS \u5217\uff0c\u8dd1\u534a\u5c0f\u65f6\u538b\u6d4b\u540e\u53d6\u767e\u5206\u4e4b\u4e5d\u5341\u4e94\u5206\u4f4d\u3002WordPress \u52a0\u4e0a\u5e38\u7528\u63d2\u4ef6\u540e\u5355\u8fdb\u7a0b\u5360\u7528\u901a\u5e38\u5728\u516b\u5341\u5230\u4e00\u767e\u4e8c\u5341 MB \u4e4b\u95f4\uff0c\u7eaf API \u578b\u7684\u5e94\u7528\u4e00\u822c\u5728\u56db\u5341\u5230\u516b\u5341 MB \u4e4b\u95f4\u3002<\/p>\n<p>\u7b2c\u4e8c\u4e2a\u95ee\u9898\u8981\u4ece\u673a\u5668\u603b\u5185\u5b58\u91cc\u4f9d\u6b21\u6263\u6389\uff1a\u64cd\u4f5c\u7cfb\u7edf\u5927\u7ea6\u4e94\u767e MB\uff0cNginx \u5927\u7ea6\u4e24\u767e MB\uff0cMySQL \u6839\u636e\u914d\u7f6e\u5728\u4e00\u5230\u56db GB\uff0cRedis \u6839\u636e\u4f7f\u7528\u60c5\u51b5\u5728\u4e24\u767e MB \u5230\u4e24 GB\uff0c\u5269\u4e0b\u7684\u624d\u662f\u771f\u6b63\u53ef\u4ee5\u7ed9 PHP-FPM \u7684\u9884\u7b97\u3002<\/p>\n<p>\u7b2c\u4e09\u4e2a\u95ee\u9898\u51b3\u5b9a\u8fdb\u7a0b\u7ba1\u7406\u6a21\u578b\u7684\u9009\u62e9\uff1a\u504f\u8ba1\u7b97\u5bc6\u96c6\u578b\u9009 static\uff0c\u504f IO \u5bc6\u96c6\u578b\u9009 dynamic \u6216 ondemand\u3002<\/p>\n<h2>\u4e8c\u3001\u6309\u5185\u5b58\u53cd\u63a8\u8fdb\u7a0b\u6570\u7684\u8ba1\u7b97\u6a21\u677f<\/h2>\n<p>\u516c\u5f0f\u5f88\u7b80\u5355\uff1apm.max_children = (\u53ef\u7528\u5185\u5b58 &#8211; \u5b89\u5168\u4f59\u91cf) \/ \u5355\u8fdb\u7a0b\u5e73\u5747\u5185\u5b58\u3002<\/p>\n<p>\u4e3e\u4f8b\uff1a8GB \u670d\u52a1\u5668\uff0c\u6263\u6389\u7cfb\u7edf\u3001Nginx\u3001MySQL\uff08\u6309 2GB \u4f30\uff09\u3001Redis\uff08\u6309 512MB \u4f30\uff09\u540e\u8fd8\u5269\u7ea6 4.5GB\uff0c\u7559 500MB \u5b89\u5168\u4f59\u91cf\uff0c\u53ef\u7528 4GB\uff1bWordPress \u5355\u8fdb\u7a0b\u6309 100MB \u7b97\uff0cpm.max_children \u5e94\u914d\u5728 40 \u5de6\u53f3\u3002<\/p>\n<p>\u4e0b\u9762\u662f\u4e09\u6863\u5e38\u89c1\u914d\u7f6e\u7684\u53c2\u8003\u503c\uff1a<\/p>\n<ul>\n<li>2GB \u673a\u5668\uff0cWordPress \u5c0f\u7ad9\uff1apm = ondemand\uff0cmax_children = 8\uff0cprocess_idle_timeout = 10s<\/li>\n<li>4GB \u673a\u5668\uff0cWordPress \u4e2d\u7b49\u6d41\u91cf\uff1apm = dynamic\uff0cmax_children = 20\uff0cstart_servers = 4\uff0cmin_spare = 2\uff0cmax_spare = 8<\/li>\n<li>8GB \u673a\u5668\uff0cAPI \u578b\u9ad8\u5e76\u53d1\uff1apm = static\uff0cmax_children = 40\uff0cmax_requests = 1000<\/li>\n<\/ul>\n<p>pm.max_requests \u662f\u4e2a\u5bb9\u6613\u88ab\u5ffd\u7565\u7684\u53c2\u6570\uff0c\u5b83\u63a7\u5236\u4e00\u4e2a worker \u5904\u7406\u591a\u5c11\u8bf7\u6c42\u540e\u9500\u6bc1\u91cd\u5efa\u3002WordPress \u8fd9\u79cd\u5e26 PHP \u6269\u5c55\u548c\u63d2\u4ef6\u7684\u73af\u5883\uff0c\u957f\u671f\u8fd0\u884c\u5bb9\u6613\u5185\u5b58\u6cc4\u6f0f\uff0c\u5efa\u8bae\u8bbe 500\u20131000\uff1b\u7eaf API \u670d\u52a1\u53ef\u4ee5\u8bbe\u5230 5000 \u6216\u66f4\u9ad8\u3002<\/p>\n<p>\u628a pm \u8bbe\u6210 static \u65f6\u4e0d\u8981\u5fd8\u4e86 max_children \u5c31\u662f\u5e38\u9a7b\u8fdb\u7a0b\u6570\uff0c\u5185\u5b58\u5360\u7528\u662f\u6052\u5b9a\u7684\uff1bdynamic \u662f\u6309\u9700\u6269\u7f29\uff0cmax_spare_servers \u662f\u4e0a\u9650\uff1bondemand \u6700\u7701\u5185\u5b58\uff0c\u4f46\u9996\u8bf7\u6c42\u6709\u51b7\u542f\u52a8\u5ef6\u8fdf\uff0c\u4e0d\u9002\u5408 SLA \u654f\u611f\u7684\u63a5\u53e3\u3002<\/p>\n<h2>\u4e09\u3001OPcache \u7684\u5185\u5b58\u8d26\u4e0e\u547d\u4e2d\u7387<\/h2>\n<p>OPcache \u628a PHP \u5b57\u8282\u7801\u7f13\u5b58\u5728\u5171\u4eab\u5185\u5b58\u91cc\uff0c\u8ba9\u6bcf\u6b21\u8bf7\u6c42\u514d\u53bb\u89e3\u6790\u4e0e\u7f16\u8bd1\u3002\u4e0d\u5f00 OPcache \u7684 PHP-FPM \u6027\u80fd\u76f4\u63a5\u780d\u534a\uff0c\u6240\u4ee5\u8fd9\u4e00\u8282\u662f\u5fc5\u4fee\u3002<\/p>\n<p>\u6838\u5fc3\u53c2\u6570\u4e0e\u63a8\u8350\u503c\uff1a<\/p>\n<ul>\n<li>opcache.memory_consumption = 256\uff08\u5c0f\u7ad9 128\uff0c\u5927\u7ad9 512\uff09<\/li>\n<li>opcache.interned_strings_buffer = 16<\/li>\n<li>opcache.max_accelerated_files = 20000\uff08WordPress \u52a0\u591a\u63d2\u4ef6\u5bb9\u6613\u8d85 10000\uff09<\/li>\n<li>opcache.revalidate_freq = 60\uff08\u751f\u4ea7\uff09\/ 0\uff08\u5f00\u53d1\uff09<\/li>\n<li>opcache.validate_timestamps = 1\uff08\u751f\u4ea7\u53ef\u5173\uff0c\u4f46\u9700\u8981 reload \u6d41\u7a0b\u914d\u5408\uff09<\/li>\n<li>opcache.fast_shutdown = 1<\/li>\n<li>opcache.enable_file_override = 1<\/li>\n<\/ul>\n<p>max_accelerated_files \u8bbe\u5c0f\u4e86\u4f1a\u628a\u70ed\u6587\u4ef6\u4e0d\u505c\u6362\u51fa\uff0c\u547d\u4e2d\u7387\u6389\u5f97\u5389\u5bb3\u3002WordPress \u7ad9\u70b9\u4e0a\u7ebf\u540e\u7528 opcache_get_status() \u7684 num_cached_scripts \u5b57\u6bb5\u9664\u4ee5 max_accelerated_files\uff0c\u6bd4\u4f8b\u5e94\u4f4e\u4e8e 75%\uff0c\u5426\u5219\u8981\u6269\u5bb9\u3002<\/p>\n<p>memory_consumption \u4e5f\u8981\u770b used_memory \u4e0e free_memory \u7684\u6bd4\u4f8b\u3002\u5982\u679c free_memory \u957f\u671f\u4f4e\u4e8e 10%\uff0c\u8bf4\u660e\u914d\u5c0f\u4e86\uff0c\u4f1a\u89e6\u53d1\u9891\u7e41\u7684\u5185\u5b58\u6e05\u7406\uff0c\u547d\u4e2d\u7387\u65ad\u5d16\u5f0f\u4e0b\u8dcc\u3002<\/p>\n<p>\u628a validate_timestamps \u5173\u6389\u662f\u751f\u4ea7\u73af\u5883\u6700\u5927\u7684\u6027\u80fd\u6536\u76ca\u9879\uff0c\u5173\u6389\u540e\u6bcf\u6b21\u90e8\u7f72\u5fc5\u987b systemctl reload php8.2-fpm\uff0c\u5efa\u8bae\u5728 CI\/CD \u91cc\u5199\u6b7b\u8fd9\u4e00\u6b65\u3002<\/p>\n<h2>\u56db\u3001Nginx \u7aef\u7684\u534f\u540c\u914d\u7f6e<\/h2>\n<p>Nginx \u4e0e PHP-FPM \u4e4b\u95f4\u8d70 unix socket \u901a\u5e38\u6bd4 TCP \u5feb 10% \u5de6\u53f3\u3002\u4f46 socket \u6587\u4ef6\u7684\u6743\u9650\u8981\u7ed9\u5bf9\uff0c\u5426\u5219 Nginx \u4f1a\u62a5 connect() to unix:\/run\/php-fpm.sock failed (13: Permission denied)\u3002<\/p>\n<p>\u5173\u952e\u53c2\u6570\u5728 nginx.conf \u7684 location ~ .php$ \u5757\uff1afastcgi_read_timeout \u8bbe 60s\uff08API \u957f\u4efb\u52a1\u8bbe\u66f4\u9ad8\uff09\uff0cfastcgi_buffer_size \u8bbe 16k\uff0cfastcgi_buffers \u8bbe 8 16k\u3002\u8fd9\u5957\u53c2\u6570\u5bf9 WordPress \u540e\u53f0\u4fdd\u5b58\u5927\u6587\u7ae0\u5f88\u5173\u952e\uff0c\u5426\u5219 502\u3002<\/p>\n<p>\u5982\u679c\u524d\u7f6e\u4e86\u53cd\u5411\u4ee3\u7406\u6216\u8d1f\u8f7d\u5747\u8861\u5206\u53d1\u5230\u591a\u53f0 PHP-FPM \u8282\u70b9\uff0c\u53ef\u4ee5\u53c2\u8003 <a href=\"https:\/\/cn.hostease.com\/blog\/server\/nginx-reverse-proxy-load-balancing\/\">Nginx \u53cd\u5411\u4ee3\u7406\u4e0e\u8d1f\u8f7d\u5747\u8861\u914d\u7f6e<\/a> \u91cc upstream \u6bb5\u7684\u5065\u5eb7\u68c0\u67e5\u4e0e keepalive \u914d\u7f6e\uff0c\u80fd\u663e\u8457\u964d\u4f4e PHP-FPM \u8282\u70b9\u7684\u8fde\u63a5\u6296\u52a8\u3002<\/p>\n<p>WordPress \u7ad9\u70b9\u540c\u65f6\u542f\u7528\u4e86 W3 Total Cache \u65f6\uff0cPHP-FPM \u7684\u547d\u4e2d\u7387\u4f1a\u88ab page cache \u62c9\u4f4e\uff08\u56e0\u4e3a\u5f88\u591a\u8bf7\u6c42\u6839\u672c\u4e0d\u5230 PHP \u5c42\uff09\uff0c\u8fd9\u662f\u9884\u671f\u884c\u4e3a\uff0c\u4e0d\u662f\u5f02\u5e38\u3002\u5b8c\u6574\u7684\u7f13\u5b58\u5c42\u4e0e OPcache \u534f\u4f5c\u7b56\u7565\u53ef\u4ee5\u770b <a href=\"https:\/\/cn.hostease.com\/blog\/wordpress\/wordpress-w3-total-cache-tuning\/\">WordPress W3 Total Cache \u8c03\u4f18\u5b9e\u6218<\/a>\u3002<\/p>\n<h2>\u4e94\u3001\u4e0a\u7ebf\u540e\u7684\u590d\u76d8 SOP<\/h2>\n<p>\u8c03\u5b8c\u53c2\u6570\u540e\u5fc5\u987b\u505a\u4e00\u6b21\u538b\u6d4b\u590d\u76d8\u3002\u5148\u5728 pool \u914d\u7f6e\u91cc\u52a0 pm.status_path = \/fpm-status \u66b4\u9732\u72b6\u6001\u63a5\u53e3\uff0cNginx \u7aef\u7528 allow 127.0.0.1 \u9650\u5236\u8bbf\u95ee\u3002\u7136\u540e\u7528 ab \u6216 wrk \u8dd1\u4e24\u8f6e\uff1a\u6b63\u5e38\u5e76\u53d1 50 \u8dd1 5 \u5206\u949f\u770b max children reached \u662f\u5426\u5927\u4e8e 0\uff0c\u6781\u9650\u5e76\u53d1 100 \u770b listen queue \u662f\u5426\u5806\u79ef\uff1b\u524d\u8005\u547d\u4e2d\u8bf4\u660e\u8fdb\u7a0b\u6570\u914d\u5c0f\uff0c\u540e\u8005\u547d\u4e2d\u8981\u8003\u8651\u52a0 listen.backlog \u6216\u6269\u5bb9\u3002<\/p>\n<p>OPcache \u547d\u4e2d\u7387\u770b opcache_get_status()[&#8216;opcache_statistics&#8217;][&#8216;opcache_hit_rate&#8217;]\uff0c\u751f\u4ea7\u73af\u5883\u5e94\u9ad8\u4e8e 99%\uff1b\u4f4e\u4e8e\u8fd9\u4e2a\u503c\u5927\u6982\u7387\u662f max_accelerated_files \u6216 memory_consumption \u914d\u5c0f\u4e86\u3002\u540c\u65f6\u628a slowlog \u9608\u503c\u8bbe 5s\uff0c\u8dd1\u4e00\u6bb5\u65f6\u95f4\u590d\u76d8\u53cd\u590d\u51fa\u73b0\u7684\u6587\u4ef6\uff0c\u90a3\u57fa\u672c\u5c31\u662f\u771f\u6b63\u7684\u6027\u80fd\u74f6\u9888\u3002<\/p>\n<p>\u90e8\u7f72\u5728\u4e91 <a href=\"https:\/\/cn.hostease.com\/vps\/\">VPS<\/a> 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