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Linux系统负载高?教你从0到1系统性排查

  • 2026-01-23 05:58:00
Linux系统负载高?教你从0到1系统性排查

Linux系统负载高？教你从0到1系统性排查

系统负载过高易导致服务卡顿甚至宕机，想要高效定位根源，需按流程逐层拆解排查。
一、先搞懂：系统负载的核心含义
二、六大维度，精准排查 CPU 排查——内存排查——磁盘 IO 排查——网络排查——系统级检查——应用级排查
三、应急处理与预防
系统化排查，才能快速定位问题，让系统回归稳定。#IT技术分享 #Linux新手入门教程 #Linux系统负载排查 #系统性排查步骤 #linux #誉天教育

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  1. CONNECT:[ UseTime:0.000410s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000450s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.002718s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.001848s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000531s ]
  6. SELECT * FROM `set` [ RunTime:0.000233s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000524s ]
  8. SELECT * FROM `article` WHERE `id` = 466319 LIMIT 1 [ RunTime:0.006309s ]
  9. UPDATE `article` SET `lasttime` = 1770539844 WHERE `id` = 466319 [ RunTime:0.002125s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 67 LIMIT 1 [ RunTime:0.004947s ]
  11. SELECT * FROM `article` WHERE `id` < 466319 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.002871s ]
  12. SELECT * FROM `article` WHERE `id` > 466319 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.003964s ]
  13. SELECT * FROM `article` WHERE `id` < 466319 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.047941s ]
  14. SELECT * FROM `article` WHERE `id` < 466319 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.025664s ]
  15. SELECT * FROM `article` WHERE `id` < 466319 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.025505s ]
0.197305s