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Linux 如何跟踪系统事件

  • 2026-07-02 16:39:09
Linux 如何跟踪系统事件
查调用关系 → dump_stack()
不致命异常 → WARN_ON()
严重错误但可继续运行 → BUG_ON()
致命错误必须停机 → panic()
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  1. 请求信息 : 2026-07-03 05:22:23 HTTP/2.0 GET : https://f.mffb.com.cn/a/495771.html
  2. 运行时间 : 0.400005s [ 吞吐率：2.50req/s ] 内存消耗：4,609.17kb 文件加载：140
  3. 缓存信息 : 0 reads,0 writes
  4. 会话信息 : SESSION_ID=e0d60a1a2bd92d0c20a17b57079d227a
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  1. CONNECT:[ UseTime:0.001099s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001732s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.005041s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.004136s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001485s ]
  6. SELECT * FROM `set` [ RunTime:0.010595s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.002062s ]
  8. SELECT * FROM `article` WHERE `id` = 495771 LIMIT 1 [ RunTime:0.043154s ]
  9. UPDATE `article` SET `lasttime` = 1783027343 WHERE `id` = 495771 [ RunTime:0.026266s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 67 LIMIT 1 [ RunTime:0.010621s ]
  11. SELECT * FROM `article` WHERE `id` < 495771 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.020772s ]
  12. SELECT * FROM `article` WHERE `id` > 495771 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.031506s ]
  13. SELECT * FROM `article` WHERE `id` < 495771 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.025266s ]
  14. SELECT * FROM `article` WHERE `id` < 495771 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.036028s ]
  15. SELECT * FROM `article` WHERE `id` < 495771 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.020910s ]
0.401571s