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Linux 只看这一张图,top 命令你会玩的贼 6

  • 2026-08-18 23:10:45
Linux 只看这一张图,top 命令你会玩的贼 6

Linux 只看这一张图，top 命令你会玩的贼 6

运维必学✨Linux top命令｜看懂服务器性能保姆级教程

新手运维、后端开发必拿捏的神仙命令！
top 相当于 Linux自带任务管理器，排查服务器卡顿、CPU/内存爆满全靠它✅

直接终端输入 top 回车，默认3秒实时刷新，按 q 即可退出，零成本上手！

🔍顶部核心数据（快速判服务器状态）

1. load average：1/5/15分钟系统负载
多核CPU负载≤核心数就是正常，持续超高=服务器过载卡顿

2. Tasks：进程总数、运行/休眠/僵尸进程，出现僵尸进程要及时处理

3. %Cpu：重点看 us用户进程、sy系统进程，占比过高就是CPU瓶颈

4. Mem/Swap：物理内存+虚拟内存使用率，Swap暴涨=内存不足内存溢出

⌨️ 高频快捷键（运维刚需）

✅ P：按CPU使用率排序，快速揪出耗CPU大户
✅ M：按内存使用率排序，排查内存溢出问题
✅ k：输入PID，强制终止异常进程（救服务器神器）
✅ 1：展开所有CPU核心，精准定位单核负载异常

📌进程列表关键字段

PID：进程唯一ID，杀进程、排查问题必备
USER：进程所属用户
CPU%/MEM%：进程资源占用占比
COMMAND：进程启动命令，快速识别项目进程

新手不用死记硬背！日常排障三步走：
看负载→看CPU/内存占用→用快捷键定位异常进程

掌握top，80%的服务器性能问题都能快速搞定✨
#Linux命令 #运维干货 #后端开发 #服务器排查 #程序员日常

作者提示: 个人观点，仅供参考
湖北,2小时前,
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  1. 请求信息 : 2026-08-21 17:57:41 HTTP/2.0 GET : https://f.mffb.com.cn/a/505847.html
  2. 运行时间 : 0.220825s [ 吞吐率：4.53req/s ] 内存消耗：4,586.66kb 文件加载：140
  3. 缓存信息 : 0 reads,0 writes
  4. 会话信息 : SESSION_ID=d5220afe133be0bf95a3e169f43f8813
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  137. /yingpanguazai/ssd/ssd1/www/f.mffb.com.cn/vendor/topthink/think-template/src/template/driver/File.php ( 2.41 KB )
  138. /yingpanguazai/ssd/ssd1/www/f.mffb.com.cn/vendor/topthink/think-template/src/template/contract/DriverInterface.php ( 0.86 KB )
  139. /yingpanguazai/ssd/ssd1/www/f.mffb.com.cn/runtime/temp/067d451b9a0c665040f3f1bdd3293d68.php ( 11.98 KB )
  140. /yingpanguazai/ssd/ssd1/www/f.mffb.com.cn/vendor/topthink/think-trace/src/Html.php ( 4.42 KB )
  1. CONNECT:[ UseTime:0.000907s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001388s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000631s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000705s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001328s ]
  6. SELECT * FROM `set` [ RunTime:0.000608s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001526s ]
  8. SELECT * FROM `article` WHERE `id` = 505847 LIMIT 1 [ RunTime:0.000978s ]
  9. UPDATE `article` SET `lasttime` = 1787306262 WHERE `id` = 505847 [ RunTime:0.015077s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 67 LIMIT 1 [ RunTime:0.006048s ]
  11. SELECT * FROM `article` WHERE `id` < 505847 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.002733s ]
  12. SELECT * FROM `article` WHERE `id` > 505847 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.012160s ]
  13. SELECT * FROM `article` WHERE `id` < 505847 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.002674s ]
  14. SELECT * FROM `article` WHERE `id` < 505847 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.003582s ]
  15. SELECT * FROM `article` WHERE `id` < 505847 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.006379s ]
0.225000s