亚洲春色欧美激情

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時間：2021-07-27 17:39:56 阅读：0 評論：0 收藏：0 [點我收藏+]

標簽：mic lock 調用提高 image 內核版本塊設備 ima 緩沖

1. ??vmstat查看监控系统资源状态

vmstat [刷新延时     刷新次数]
eg: 
vmstat 1 3

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procs: 进程信息字段
- r: 等待运行的进程数，数量越大，系统越繁忙；
- b: 不可被唤醒的进程数量，数量越大，系统越繁忙；
memory：内存信息字段
- swpd: 虚拟内存的使用情况，单位KB
- free: 空闲的内容容量，单位KB
- buff: 緩沖的内存容量，单位KB
- cache: 缓存的内存容量，单位KB

**缓存和緩沖的区别： **
緩存(cache)是爲了提高系統對數據的【讀取】效率
緩沖(buffer)是为了提供系统对数据的【写出】效率

swap：交换分区的信息字段
- si: 从磁盘中交换到内存中数据的数量，单位KB。
- so: 从内存中交换到磁盘中数据的数量，单位KB。此两个数越大，证明数据需要经常在磁盘和内存之间交换，系统性能越差。
io: 磁盘读写信息字段
- bi: 从塊設備读入数据的总量，单位是块。
- bo: 写到塊設備的数据的总量，单位是块。此两个数越大，代表系统的I/O越繁忙。

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??2. dmesg查看系统内核信息

??查看當前系統的CPU信息

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??3. free查看系统内存使用状态

  free [-b|-k|-m|-g]
  选项： 
  -b: 以字节为单位显示
  -k: 以KB为单位显示，【默认显示单位】
  -m: 以MB为单位显示
  -g: 以GB为单位显示

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4. uname查看系统内核信息

uname [-a|-r|-s]
  -a: 系统所有相关信息
  -r: 查看內核版本
  -s: 查看内核名称

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5. 当前系统位数： file /bin/ls

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6. 查询系统中所有进程調用的文件： lsof|more

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7. 查询某个文件被那个进程調用： lsof /sbin/init

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8. 查看httpd进程調用了哪些文件： lsof -c httpd

9. 按照用户名，查询某用户的进程調用的文件名: lsof -u root

Linux系統資源查看

標簽：mic lock 調用提高 image 內核版本塊設備 ima 緩沖

原文地址：https://www.cnblogs.com/openmind-ink/p/15065476.html

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