{"id":3365,"date":"2026-10-28T22:00:00","date_gmt":"2026-10-28T14:00:00","guid":{"rendered":"https:\/\/www.ygcloud.com\/knowledge\/?p=3365"},"modified":"2026-10-28T15:35:53","modified_gmt":"2026-10-28T07:35:53","slug":"cloud-server-mysql-sizing","status":"publish","type":"post","link":"https:\/\/www.ygcloud.com\/knowledge\/3365\/","title":{"rendered":"2 \u6838 4G \u8dd1 MySQL \u591f\u5417\uff1f\u914d\u7f6e\u3001\u8fde\u63a5\u6570\u4e0e\u78c1\u76d8\u9009\u578b"},"content":{"rendered":"<p>\u5148\u8bf4\u7ed3\u8bba\uff1a2 \u6838 4G \u80fd\u8dd1\u5c0f\u7ad9\u548c\u8f7b\u91cf\u4e1a\u52a1\uff0c\u4f46 MySQL \u7684 buffer pool \u53ea\u80fd\u7ed9 1 \u5230 1.5G\uff1b4 \u6838 8G \u9002\u5408\u4e2d\u578b\u7ad9\u70b9\u548c\u5e76\u53d1\u4e0d\u9ad8\u7684 API\uff1b8 \u6838 16G \u8d77\u624d\u8c08\u5f97\u4e0a\u201c\u6570\u636e\u5e93\u4e13\u7528\u673a\u201d\u3002\u6bd4\u8d77 CPU\uff0cMySQL \u66f4\u5403\u5185\u5b58\u548c\u78c1\u76d8 IOPS\u3002<\/p>\n<p>\u9009\u914d\u7f6e\u524d\u5148\u7b97\u4e09\u7b14\u8d26\uff1a\u6570\u636e\u91cf\u3001\u5e76\u53d1\u8fde\u63a5\u3001\u5cf0\u503c QPS\u3002\u6570\u636e\u91cf\u51b3\u5b9a buffer pool\uff0c\u8fde\u63a5\u6570\u51b3\u5b9a\u5185\u5b58\u4e0a\u9650\uff0cQPS \u51b3\u5b9a CPU \u548c\u78c1\u76d8\u3002<\/p>\n<h2 id=\"\u5185\u5b58\u600e\u4e48\u5206\">\u5185\u5b58\u600e\u4e48\u5206<\/h2>\n<p>MySQL \u5185\u5b58\u5927\u5934\u662f InnoDB buffer pool\uff0c\u901a\u5e38\u7ed9\u7269\u7406\u5185\u5b58\u7684 50% \u5230 70%\u3002\u5269\u4e0b\u7684\u7559\u7ed9\u8fde\u63a5\u3001\u6392\u5e8f\u3001\u4e34\u65f6\u8868\u3001\u7cfb\u7edf\u548c\u5176\u4ed6\u8fdb\u7a0b\u3002<\/p>\n<ul>\n<li>2G \u5185\u5b58\uff1abuffer pool 512M \u5230 1G\uff0c\u53ea\u9002\u5408\u5c0f\u5e93<\/li>\n<li>4G \u5185\u5b58\uff1abuffer pool 1G \u5230 2G\uff0c\u5c0f\u7ad9\u591f\u7528<\/li>\n<li>8G \u5185\u5b58\uff1abuffer pool 4G \u5230 5G\uff0c\u4e2d\u578b\u4e1a\u52a1<\/li>\n<li>16G \u4ee5\u4e0a\uff1a\u6309\u6570\u636e\u70ed\u533a\u7ed9\uff0c\u522b\u628a\u6574\u673a\u5185\u5b58\u5403\u6ee1<\/li>\n<\/ul>\n<pre><code># my.cnf \u793a\u4f8b\uff084G \u5185\u5b58\uff09\ninnodb_buffer_pool_size = 1536M\nmax_connections = 100\ninnodb_log_file_size = 256M\nslow_query_log = 1\nlong_query_time = 0.5<\/code><\/pre>\n<figure class=\"wp-block-image size-full\"><img width=\"1280\" height=\"720\" src=\"https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/b7354bb207f176f.jpg\" alt=\"\u6570\u636e\u5e93 buffer pool \u4e0e\u8fde\u63a5\u69fd\u4f4d\u7684\u5185\u5b58\u793a\u610f\" class=\"wp-image-3362\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/b7354bb207f176f.jpg 1280w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/b7354bb207f176f-300x169.jpg 300w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/b7354bb207f176f-1024x576.jpg 1024w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/b7354bb207f176f-768x432.jpg 768w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><figcaption>buffer pool \u7ed9\u7269\u7406\u5185\u5b58\u7684 50% \u5230 70%\uff0c\u8fde\u63a5\u6570\u6309\u5185\u5b58\u7b97\u4e0a\u9650\u3002<\/figcaption><\/figure>\n<h2 id=\"cpu-\u548c\u8fde\u63a5\u6570\">CPU \u548c\u8fde\u63a5\u6570<\/h2>\n<p>MySQL \u5355\u6761\u67e5\u8be2\u4e3b\u8981\u5403\u5355\u6838\uff0c\u590d\u6742\u805a\u5408\u548c\u5e76\u53d1\u624d\u4f1a\u5403\u591a\u6838\u30022 \u6838\u9002\u5408\u4f4e\u5e76\u53d1\uff0c4 \u6838\u662f\u5e38\u89c1\u8d77\u70b9\uff0c8 \u6838\u4ee5\u4e0a\u8981\u914d\u5408\u8fde\u63a5\u6c60\u548c\u6162\u67e5\u8be2\u6cbb\u7406\u3002<\/p>\n<p><code>max_connections<\/code> \u4e0d\u662f\u8d8a\u5927\u8d8a\u597d\u3002\u6bcf\u4e2a\u8fde\u63a5\u90fd\u5360\u5185\u5b58\uff0c\u8fde\u63a5\u6570\u6253\u6ee1\u540e\u65b0\u8bf7\u6c42\u4f1a\u6392\u961f\u3002\u5e94\u7528\u4fa7\u7528\u8fde\u63a5\u6c60\uff0c\u6570\u636e\u5e93\u4fa7\u6309\u5185\u5b58\u7b97\u4e0a\u9650\u3002<\/p>\n<h2 id=\"\u78c1\u76d8\u6bd4-cpu-\u66f4\u91cd\u8981\">\u78c1\u76d8\u6bd4 CPU \u66f4\u91cd\u8981<\/h2>\n<p>\u6570\u636e\u5e93\u6700\u6015\u968f\u673a IO \u6162\u3002\u9009\u672c\u5730 SSD \u6216\u9ad8 IOPS \u4e91\u76d8\uff0c\u522b\u7528\u7f51\u7edc\u5b58\u50a8\u8dd1\u70ed\u5e93\uff1bbinlog\u3001redo log\u3001\u6570\u636e\u6587\u4ef6\u5206\u5f00\u6216\u81f3\u5c11\u4fdd\u8bc1\u8db3\u591f\u7a7a\u95f4\u3002\u78c1\u76d8\u6ee1\u4e86\uff0cMySQL \u53ef\u80fd\u76f4\u63a5\u505c\u5199\u3002<\/p>\n<h2 id=\"\u914d\u7f6e\u5bf9\u7167\u8868\">\u914d\u7f6e\u5bf9\u7167\u8868<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u573a\u666f<\/th>\n<th>\u914d\u7f6e<\/th>\n<th>\u8bf4\u660e<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u4e2a\u4eba\u7ad9\u3001\u5c0f\u5de5\u5177<\/td>\n<td>2 \u6838 4G\uff0c80G SSD<\/td>\n<td>buffer pool 1G \u5de6\u53f3\uff0c\u65e5PV \u51e0\u5343<\/td>\n<\/tr>\n<tr>\n<td>\u4e2d\u578b\u7ad9\u70b9\u3001API<\/td>\n<td>4 \u6838 8G\uff0c160G SSD<\/td>\n<td>buffer pool 4G\uff0c\u8fde\u63a5\u6c60 100 \u4ee5\u5185<\/td>\n<\/tr>\n<tr>\n<td>\u9ad8\u5e76\u53d1\u3001\u8ba2\u5355\u5e93<\/td>\n<td>8 \u6838 16G \u8d77<\/td>\n<td>\u72ec\u7acb\u6570\u636e\u76d8\u3001\u4e3b\u4ece\u3001\u76d1\u63a7\u9f50\u5168<\/td>\n<\/tr>\n<tr>\n<td>\u5206\u6790\/\u62a5\u8868<\/td>\n<td>\u53e6\u5f00\u4ece\u5e93<\/td>\n<td>\u522b\u5728\u4e3b\u5e93\u8dd1\u5927\u67e5\u8be2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"\u53c2\u6570\u548c\u6162\u67e5\u8be2\">\u53c2\u6570\u548c\u6162\u67e5\u8be2<\/h2>\n<pre><code>SHOW VARIABLES LIKE 'innodb_buffer_pool_size';\nSHOW STATUS LIKE 'Threads_connected';\nSHOW FULL PROCESSLIST;\nSHOW ENGINE INNODB STATUS;<\/code><\/pre>\n<p>\u5148\u5f00\u6162\u67e5\u8be2\u65e5\u5fd7\uff0c\u628a\u8d85\u8fc7 0.5 \u79d2\u7684 SQL \u635e\u51fa\u6765\uff0c\u8865\u7d22\u5f15\u3001\u62c6\u67e5\u8be2\u3001\u907f\u514d N+1\u3002\u5927\u591a\u6570\u201c\u6570\u636e\u5e93\u6162\u201d\u4e0d\u662f\u914d\u7f6e\u95ee\u9898\uff0c\u662f SQL \u548c\u7d22\u5f15\u95ee\u9898\u3002<\/p>\n<figure class=\"wp-block-image size-full\"><img width=\"1280\" height=\"720\" src=\"https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/eb272d6f165006a.jpg\" alt=\"\u6162\u67e5\u8be2\u5361\u5728\u7ba1\u9053\u91cc\uff0c\u7d22\u5f15\u50cf\u4e00\u672c\u4e66\u52a0\u901f\u5b83\" class=\"wp-image-3363\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/eb272d6f165006a.jpg 1280w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/eb272d6f165006a-300x169.jpg 300w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/eb272d6f165006a-1024x576.jpg 1024w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/eb272d6f165006a-768x432.jpg 768w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><figcaption>\u5927\u591a\u6570\u6570\u636e\u5e93\u6162\u4e0d\u662f\u914d\u7f6e\u95ee\u9898\uff0c\u662f SQL \u548c\u7d22\u5f15\u95ee\u9898\u3002<\/figcaption><\/figure>\n<h2 id=\"\u5907\u4efd\u600e\u4e48\u505a\">\u5907\u4efd\u600e\u4e48\u505a<\/h2>\n<ul>\n<li>\u903b\u8f91\u5907\u4efd\uff1a<code>mysqldump<\/code>\uff0c\u9002\u5408\u5c0f\u5e93\u548c\u8fc1\u79fb<\/li>\n<li>\u7269\u7406\u5907\u4efd\uff1aXtraBackup\uff0c\u9002\u5408\u5927\u5e93\u548c\u5feb\u901f\u6062\u590d<\/li>\n<li>binlog\uff1a\u6309\u65f6\u95f4\u70b9\u6062\u590d\uff0c\u5fc5\u987b\u5f00<\/li>\n<li>\u5907\u4efd\u653e\u7ad9\u5916\uff0c\u5b9a\u671f\u505a\u6062\u590d\u6f14\u7ec3<\/li>\n<\/ul>\n<pre><code>mysqldump --single-transaction --routines --triggers \\\n  -u root -p appdb &gt; \/backup\/appdb-$(date +%F).sql<\/code><\/pre>\n<figure class=\"wp-block-image size-full\"><img width=\"1280\" height=\"720\" src=\"https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/6a21328c5e0d851.jpg\" alt=\"\u6570\u636e\u5e93\u5907\u4efd\u5e93\u4e0e\u6062\u590d\u62a4\u76fe\" class=\"wp-image-3364\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/6a21328c5e0d851.jpg 1280w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/6a21328c5e0d851-300x169.jpg 300w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/6a21328c5e0d851-1024x576.jpg 1024w, https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/6a21328c5e0d851-768x432.jpg 768w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><figcaption>\u5907\u4efd\u8981\u653e\u7ad9\u5916\uff0cbinlog \u6253\u5f00\uff0c\u5b9a\u671f\u505a\u6062\u590d\u6f14\u7ec3\u3002<\/figcaption><\/figure>\n<h2 id=\"\u5e38\u89c1\u5751\">\u5e38\u89c1\u5751<\/h2>\n<ul>\n<li>buffer pool \u8bbe\u592a\u5927\uff0c\u7cfb\u7edf OOM<\/li>\n<li>max_connections \u8bbe\u592a\u9ad8\uff0c\u5185\u5b58\u88ab\u8fde\u63a5\u5403\u5149<\/li>\n<li>\u6ca1\u5f00\u6162\u67e5\u8be2\uff0c\u95ee\u9898\u5168\u9760\u731c<\/li>\n<li>\u6570\u636e\u76d8\u548c\u7cfb\u7edf\u76d8\u5171\u7528\uff0c\u65e5\u5fd7\u5199\u6ee1\u7cfb\u7edf\u76d8<\/li>\n<li>\u53ea\u5907\u4efd\u6570\u636e\u4e0d\u5907\u4efd binlog\uff0c\u6062\u590d\u4e0d\u5230\u65f6\u95f4\u70b9<\/li>\n<li>\u4e3b\u5e93\u8dd1\u62a5\u8868\uff0c\u4e1a\u52a1\u88ab\u62d6\u6162<\/li>\n<\/ul>\n<h2 id=\"\u8fde\u63a5\u6c60\u548c\u5e76\u53d1\">\u8fde\u63a5\u6c60\u548c\u5e76\u53d1<\/h2>\n<p>\u5e94\u7528\u4fa7\u8fde\u63a5\u6c60\u4e0d\u662f\u8d8a\u5927\u8d8a\u597d\u3002\u8fde\u63a5\u6570\u8d85\u8fc7\u6570\u636e\u5e93\u80fd\u5904\u7406\u7684\u5e76\u53d1\uff0c\u53ea\u4f1a\u589e\u52a0\u4e0a\u4e0b\u6587\u5207\u6362\u548c\u9501\u7b49\u5f85\u3002\u6309\u201c\u6570\u636e\u5e93\u6838\u6570 \u00d7 2 \u5230 4\u201d\u4f30\u7b97\uff0c\u518d\u538b\u6d4b\u786e\u8ba4\uff1b\u8fde\u63a5\u6c60\u7a7a\u95f2\u56de\u6536\u4e5f\u8981\u5f00\uff0c\u907f\u514d\u5360\u7740\u8fde\u63a5\u4e0d\u5e72\u6d3b\u3002<\/p>\n<h2 id=\"\u4e3b\u4ece\u548c\u8bfb\u5199\u5206\u79bb\">\u4e3b\u4ece\u548c\u8bfb\u5199\u5206\u79bb<\/h2>\n<p>\u8bfb\u591a\u5199\u5c11\u7684\u4e1a\u52a1\u53ef\u4ee5\u52a0\u4ece\u5e93\uff0c\u628a\u62a5\u8868\u3001\u5217\u8868\u3001\u641c\u7d22\u653e\u4ece\u5e93\uff0c\u4e3b\u5e93\u53ea\u5904\u7406\u5199\u5165\u548c\u5f3a\u4e00\u81f4\u8bfb\u3002\u6ce8\u610f\u4e3b\u4ece\u5ef6\u8fdf\uff1a\u521a\u5199\u5b8c\u7acb\u523b\u8bfb\u4ece\u5e93\u53ef\u80fd\u8bfb\u4e0d\u5230\uff0c\u5173\u952e\u94fe\u8def\u8981\u5f3a\u5236\u8d70\u4e3b\u5e93\u6216\u505a\u5ef6\u8fdf\u5224\u65ad\u3002<\/p>\n<h2 id=\"\u76d1\u63a7\u6307\u6807\">\u76d1\u63a7\u6307\u6807<\/h2>\n<p>\u81f3\u5c11\u76ef\u8fd9\u51e0\u4e2a\uff1a\u8fde\u63a5\u6570\u3001QPS\u3001\u6162\u67e5\u8be2\u6570\u3001InnoDB \u7f13\u51b2\u6c60\u547d\u4e2d\u7387\u3001\u78c1\u76d8\u4f7f\u7528\u7387\u3001\u4e3b\u4ece\u5ef6\u8fdf\u3002\u7f13\u51b2\u6c60\u547d\u4e2d\u7387\u957f\u671f\u4f4e\u4e8e 95%\uff0c\u8bf4\u660e\u5185\u5b58\u4e0d\u591f\u6216\u67e5\u8be2\u592a\u6563\uff1b\u78c1\u76d8\u4f7f\u7528\u7387\u8d85\u8fc7 80% \u5c31\u8981\u6e05\u7406\u6216\u6269\u5bb9\u3002<\/p>\n<h2 id=\"\u4e91\u6570\u636e\u5e93\u548c\u81ea\u5efa\u600e\u4e48\u9009\">\u4e91\u6570\u636e\u5e93\u548c\u81ea\u5efa\u600e\u4e48\u9009<\/h2>\n<p>\u4e91\u6570\u636e\u5e93\u7701\u8fd0\u7ef4\uff0c\u81ea\u52a8\u5907\u4efd\u3001\u4e3b\u4ece\u3001\u76d1\u63a7\u90fd\u73b0\u6210\uff0c\u4f46\u4ef7\u683c\u9ad8\u3001\u53c2\u6570\u53d7\u9650\uff1b\u81ea\u5efa\u7075\u6d3b\u3001\u4fbf\u5b9c\uff0c\u4f46\u8981\u81ea\u5df1\u8d1f\u8d23\u5907\u4efd\u3001\u5347\u7ea7\u548c\u6545\u969c\u3002\u5c0f\u56e2\u961f\u4f18\u5148\u4e91\u6570\u636e\u5e93\uff0c\u6709 DBA \u6216\u6210\u672c\u654f\u611f\u518d\u81ea\u5efa\u3002<\/p>\n<h2 id=\"\u4ec0\u4e48\u65f6\u5019\u8be5\u5206\u5e93\u5206\u8868\">\u4ec0\u4e48\u65f6\u5019\u8be5\u5206\u5e93\u5206\u8868<\/h2>\n<p>\u5355\u8868\u51e0\u5343\u4e07\u884c\u3001\u67e5\u8be2\u5f00\u59cb\u660e\u663e\u53d8\u6162\u65f6\uff0c\u5148\u505a\u7d22\u5f15\u4f18\u5316\u3001\u5f52\u6863\u5386\u53f2\u6570\u636e\u3001\u8bfb\u5199\u5206\u79bb\uff1b\u8fd9\u4e9b\u90fd\u4e0d\u591f\u518d\u8003\u8651\u5206\u5e93\u5206\u8868\u3002\u5206\u5e93\u5206\u8868\u4f1a\u5e26\u6765\u8de8\u5e93\u67e5\u8be2\u3001\u4e8b\u52a1\u548c\u8fd0\u7ef4\u590d\u6742\u5ea6\uff0c\u522b\u4e3a\u4e86\u201c\u770b\u8d77\u6765\u4e13\u4e1a\u201d\u63d0\u524d\u4e0a\u3002<\/p>\n<p>\u8fd8\u6709\u4e00\u6761\u7ecf\u9a8c\uff1a\u6570\u636e\u5e93\u673a\u5668\u4e0d\u8981\u517c\u804c\u8dd1\u5e94\u7528\u3001\u5907\u4efd\u548c\u722c\u866b\uff0c\u8d44\u6e90\u4e89\u62a2\u65f6\u6700\u5148\u51fa\u95ee\u9898\u7684\u662f IO\u3002<\/p>\n<p>\u5982\u679c\u4e1a\u52a1\u8fd8\u5728\u589e\u957f\uff0c\u914d\u7f6e\u81f3\u5c11\u7559 30% \u4f59\u91cf\uff0c\u522b\u7b49\u78c1\u76d8\u548c\u8fde\u63a5\u6570\u90fd\u8d34\u7740\u4e0a\u9650\u624d\u6269\u5bb9\u3002<\/p>\n<p>\u6570\u636e\u5e93\u7684\u76d1\u63a7\u544a\u8b66\u8981\u63a5\u5230\u4eba\uff0c\u4e0d\u8981\u53ea\u53d1\u90ae\u4ef6\u5230\u6ca1\u4eba\u770b\u7684\u90ae\u7bb1\u3002<\/p>\n<p>\u914d\u7f6e\u662f\u8d77\u70b9\uff0c\u6301\u7eed\u89c2\u5bdf\u548c\u8c03\u6574\u624d\u662f\u65e5\u5e38\u3002<\/p>\n<p>\u5efa\u8bae\u6bcf\u6708\u590d\u76d8\u4e00\u6b21\uff0c\u6309\u5b9e\u9645\u8d1f\u8f7d\u8c03\u6574\u914d\u7f6e\uff0c\u522b\u8ba9\u9ed8\u8ba4\u503c\u4e00\u76f4\u8dd1\u4e0b\u53bb\u3002<\/p>\n<h2 id=\"\u5e38\u89c1\u95ee\u9898-faq\">\u5e38\u89c1\u95ee\u9898 FAQ<\/h2>\n<p><strong>Q1\uff1a2 \u6838 4G \u80fd\u8dd1 MySQL \u5417\uff1f<\/strong><\/p>\n<p>\u80fd\u8dd1\u5c0f\u7ad9\u548c\u8f7b\u91cf\u4e1a\u52a1\uff0cbuffer pool \u7ed9 1G \u5de6\u53f3\uff0c\u8fde\u63a5\u6570\u63a7\u5236\u5728 100 \u4ee5\u5185\u3002\u6570\u636e\u91cf\u5927\u6216\u5e76\u53d1\u9ad8\u5c31\u4e0a 4 \u6838 8G\u3002<\/p>\n<p><strong>Q2\uff1aMySQL \u9700\u8981\u72ec\u7acb\u670d\u52a1\u5668\u5417\uff1f<\/strong><\/p>\n<p>\u6570\u636e\u91cf\u5927\u3001\u5e76\u53d1\u9ad8\u3001\u5408\u89c4\u8981\u6c42\u9ad8\u65f6\u5efa\u8bae\u72ec\u7acb\u3002\u5c0f\u7ad9\u548c\u5e94\u7528\u540c\u673a\u53ef\u4ee5\uff0c\u4f46\u8981\u7ed9\u6570\u636e\u5e93\u7559\u8db3\u5185\u5b58\u548c\u78c1\u76d8\u3002<\/p>\n<p><strong>Q3\uff1aCPU \u9ad8\u8fd8\u662f IO \u9ad8\uff1f<\/strong><\/p>\n<p>\u770b\u6162\u67e5\u8be2\u548c iostat\u3002\u590d\u6742\u67e5\u8be2\u5403 CPU\uff0c\u968f\u673a\u8bfb\u591a\u3001buffer pool \u4e0d\u591f\u5403 IO\u3002<\/p>\n<p><strong>Q4\uff1a\u4e91\u6570\u636e\u5e93\u548c\u81ea\u5efa\u600e\u4e48\u9009\uff1f<\/strong><\/p>\n<p>\u4e0d\u60f3\u8fd0\u7ef4\u3001\u8981\u81ea\u52a8\u5907\u4efd\u548c\u4e3b\u4ece\uff0c\u9009\u4e91\u6570\u636e\u5e93\uff1b\u8981\u53ef\u63a7\u6210\u672c\u3001\u81ea\u5b9a\u4e49\u53c2\u6570\uff0c\u81ea\u5efa\u66f4\u7075\u6d3b\u3002<\/p>\n<p><strong>Q5\uff1a\u8981\u4e0d\u8981\u4e0a\u4e3b\u4ece\uff1f<\/strong><\/p>\n<p>\u8bfb\u591a\u5199\u5c11\u3001\u9700\u8981\u5bb9\u707e\u548c\u5907\u4efd\u7a97\u53e3\u65f6\u4e0a\u4e3b\u4ece\uff1b\u5355\u673a\u4e5f\u80fd\u8dd1\uff0c\u4f46\u6545\u969c\u6062\u590d\u65f6\u95f4\u957f\u3002<\/p>\n<h2 id=\"\u603b\u7ed3\">\u603b\u7ed3<\/h2>\n<p>MySQL \u9009\u914d\u7f6e\uff0c\u5148\u770b\u6570\u636e\u91cf\u548c\u8fde\u63a5\u6570\uff0c\u518d\u7ed9 buffer pool \u7559\u591f\u5185\u5b58\uff0c\u6700\u540e\u9009\u9ad8 IOPS \u78c1\u76d8\u30022 \u6838 4G \u80fd\u8d77\u6b65\uff0c4 \u6838 8G \u66f4\u7a33\uff0c8 \u6838 16G \u4ee5\u4e0a\u518d\u8c08\u4e13\u7528\u3002\u6162\u67e5\u8be2\u548c\u5907\u4efd\uff0c\u6bd4\u5806\u914d\u7f6e\u66f4\u91cd\u8981\u3002<\/p>\n<p>\u9700\u8981\u4e00\u53f0\u72ec\u7acb\u6570\u636e\u5e93\u673a\u5668\u505a\u6d4b\u8bd5\u6216\u4ece\u5e93\uff0c\u53ef\u4ee5\u6309\u5c0f\u65f6\u5f00\u4e00\u53f0<a href=\"https:\/\/www.ygcloud.com\/vps\/hong-kong-cn2-vps\">\u8424\u5149\u4e91\u9999\u6e2f CN2 VPS<\/a>\uff0c\u5148\u8dd1\u4e00\u8f6e\u771f\u5b9e\u6570\u636e\u3002<\/p>\n<h2 id=\"\u76f8\u5173\u63a8\u8350\">\u76f8\u5173\u63a8\u8350<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.ygcloud.com\/knowledge\/1951\/\">Docker \u90e8\u7f72\u5e94\u7528\u9700\u8981\u591a\u5927 VPS \u914d\u7f6e\uff1f<\/a><\/li>\n<li><a href=\"https:\/\/www.ygcloud.com\/knowledge\/3249\/\">VPS \u8d85\u552e\u662f\u4ec0\u4e48\uff1f\u600e\u4e48\u5224\u65ad\u4fbf\u5b9c VPS \u6709\u6ca1\u6709\u8d85\u552e<\/a><\/li>\n<li><a href=\"https:\/\/www.ygcloud.com\/knowledge\/3279\/\">VPS \u7684 CPU \u578b\u53f7\u600e\u4e48\u770b\uff1fEPYC\u3001Xeon \u4e0e\u5171\u4eab\u6838<\/a><\/li>\n<li><a href=\"https:\/\/www.ygcloud.com\/knowledge\/3231\/\">\u7f51\u7ad9 502 \u9519\u8bef\u600e\u4e48\u6392\u67e5\uff1fNginx\u3001PHP-FPM \u4e0e\u540e\u7aef\u8d85\u65f6<\/a><\/li>\n<li><a href=\"https:\/\/www.ygcloud.com\/knowledge\/888\/\">VPS \u5b89\u5168\u8bbe\u7f6e\u6307\u5357\uff1a\u65b0\u670d\u52a1\u5668\u4e0a\u7ebf\u524d\u7684 12 \u9879\u68c0\u67e5<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u5148\u8bf4\u7ed3\u8bba\uff1a2 \u6838 4G \u80fd\u8dd1\u5c0f\u7ad9\u548c\u8f7b\u91cf\u4e1a\u52a1\uff0c\u4f46 MySQL \u7684 buffer pool \u53ea\u80fd\u7ed9 1 \u5230 1.5G\uff1b4 \u6838 8G \u9002\u5408\u4e2d\u578b\u7ad9\u70b9\u548c\u5e76\u53d1\u4e0d\u9ad8\u7684 API\uff1b8 \u6838 16G \u8d77\u624d\u8c08\u5f97\u4e0a\u201c\u6570\u636e\u5e93\u4e13\u7528\u673a\u201d\u3002\u6bd4\u8d77 CPU\uff0cMySQL \u66f4\u5403\u5185\u5b58&#8230;<\/p>\n","protected":false},"author":1,"featured_media":3361,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[100],"tags":[43,46],"topic":[],"class_list":["post-3365","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-100","tag-vps"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>2 \u6838 4G \u8dd1 MySQL \u591f\u5417\uff1f\u914d\u7f6e\u3001\u8fde\u63a5\u6570\u4e0e\u78c1\u76d8\u9009\u578b<\/title>\n<meta name=\"description\" content=\"\u4e91\u670d\u52a1\u5668\u8dd1 MySQL \u600e\u4e48\u9009\u914d\u7f6e\uff1f\u4ece buffer pool\u3001\u8fde\u63a5\u6570\u3001\u78c1\u76d8 IOPS \u548c\u5907\u4efd\u8bb2\u6e05 2 \u6838 4G\u30014 \u6838 8G\u30018 \u6838 16G \u7684\u9002\u7528\u8fb9\u754c\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, 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content=\"https:\/\/www.ygcloud.com\/knowledge\/wp-content\/uploads\/2026\/10\/41496b9d4b9e4c8.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1600\" \/>\n\t<meta property=\"og:image:height\" content=\"900\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"\u6d77\u5916VPS\u63a8\u8350\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u6d77\u5916VPS\u63a8\u8350\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 \u5206\" \/>\n<script type=\"application\/ld+json\" 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