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68 changes: 68 additions & 0 deletions command/glances.md
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glances
===

Glances 是一个用于监控系统的跨平台、基于文本模式的命令行工具

> 注意：该命令有区别于`glance`

## 补充说明
该工具用 Python 编写的，使用 psutil 库从系统获取信息。可以用它来监控 **CPU**、**平均负载**、**内存**、**网络接口**、**磁盘 I/O**，文件系统空间利用率、挂载的设备、所有活动进程以及消耗资源最多的进程。
Glances 有很多有趣的选项。它的主要特性之一是可以在配置文件中设置阀值（`careful`小心、`warning`警告、`critical`致命），然后它会用不同颜色显示信息以表明系统的瓶颈

## 安装

Ubuntu
```
apt-get install glances
```

## 语法
直接运行，可能需要使用到sudo获取权限
```
glances
```


## 实例

```

oem-Server (Ubuntu 22.04 64bit / Linux 5.15.0-53-generic) Uptime: 73 days, 3:10:59

Intel(R) Xeon(R) CPU E5-2678 v3 @ 2.50GHz - 0.00/3.30GHz CPU - 1.6% idle: 98.5% ctx_sw 7K MEM - 16.3% active 3.81G SWAP - 0.0% LOAD 48-core
CPU [| 1.4%] user 1.1% irq 0.0% inter 4K total 31.2G inactive 23.6G total 0 1 min: 1.06
MEM [||||||||| 16.3%] system 0.4% nice 0.0% sw_int 4K used 5.08G buffers 1.03G used 0 5 min: 0.93
SWAP [ 0.0%] iowait 0.0% steal 0.0% free 26.1G cached 25.1G free 0 15 min: 0.80

NETWORK Rx/s Tx/s CONTAINERS 1 (served by Docker 20.10.12)
br-74b0af826199 0b 0b
eno1 175Kb 63Kb Name Status CPU% MEM /MAX IOR/s IOW/s Rx/s Tx/s Command
lo 52Kb 52Kb ********** running 44.8 2.20G 31.2G 0B 0B 0b 0b /usr/sbin/sshd -D
veth6e888b7 0b 0b
TASKS 947 (2674 thr), 1 run, 647 slp, 299 oth sorted automatically by CPU consumption
DefaultGateway 3ms
CPU% MEM% VIRT RES PID USER TIME+ THR NI S R/s W/s Command ('k' to kill)
DISK I/O R/s W/s >12.9 0.2 501M 63.9M 3267378 ***** 0:03 2 0 R 0 0 python3 /usr/bin/glances
sda 0 0 12.2 0.5 1021M 172M 3196191 root 2:18 12 0 S ? ? node /root/.vscode-server/bin/e2816fe719a4026ffa1ee0189dc89bdfdbafb164/o
sda1 0 0 8.9 1.7 1.44G 541M 3196442 root 1:51 9 0 S ? ? node /root/.vscode-server/extensions/ms-python.vscode-pylance-2023.2.20/
sda2 0 0 5.8 0.0 10.3M 6.41M 1365 avahi 29h39:30 1 0 S ? ? avahi-daemon: running [oem-Server.local]
sda5 0 0 1.9 0.5 4.84G 150M 640306 root 1h0:48 57 0 S ? ? dockerd -H fd:// --containerd=/run/containerd/containerd.sock
sdb 2K 0 1.7 0.1 3.96G 21.1M 1508 root 2h8:01 47 0 S ? ? containerd
sdb1 0 0 1.2 0.0 695M 12.4M 1142692 root 2:16 13 0 S ? ? containerd-shim-runc-v2 -namespace moby -id a05a1569c4d8e77f09701e596dc2
sdb2 2K 0 1.2 0.0 384M 9.80M 1768 oem 11:37 4 0 S ? ? gvfs-udisks2-volume-monitor
1.0 0.0 384M 10.1M 3633375 ***** 7:13 4 0 S 0 0 gvfs-udisks2-volume-monitor
FILE SYS Used Total 0.7 0.4 172M 118M 3240368 glance 0:06 1 0 S ? ? *****
/ (sdb2) 583G 916G 0.7 0.2 694M 59.9M 3210698 ***** 0:04 12 0 S 0 0 node /home/*****/.vscode-server/bin/441438abd1ac652551dbe4d408dfcec8a49
/HDD_DATA (sda1) 241G 427G 0.5 0.8 350M 255M 712 root 3h23:11 1 -1 S ? ? systemd-journald
_/common/host-hunspell 583G 916G 0.5 0.4 961M 135M 2580428 root 9:26 11 0 S ? ? node /root/.vscode-server/bin/e2816fe719a4026ffa1ee0189dc89bdfdbafb164/o
0.5 0.1 577M 47.1M 3194060 ***** 0:03 7 0 S 2K 0 node /home/*****/.vscode-remote-containers/dist/vscode-remote-container
SENSORS 0.5 0.1 184M 31.4M 3196391 root 0:02 3 0 S ? ? python /root/.vscode-server/extensions/ms-python.isort-2022.8.0/bundled/
loc1 38C 0.5 0.1 622M 22.3M 1757 oem 1:27 6 19 S ? ? tracker-miner-fs-3
Package id 0 29C 0.5 0.1 475M 18.8M 1368 root 4h2:35 3 0 S ? ? NetworkManager --no-daemon
Core 8 23C 0.5 0.0 165M 13.2M 1 root 2h2:52 1 0 S ? ? init splash
Core 9 24C 0.5 0.0 18.8M 11.4M 1643 oem 15:45 1 0 S ? ? systemd --user
Core 10 22C 0.5 0.0 17.6M 9.91M 3633215 master 2h37:11 1 0 S 0 982 systemd --user
Core 11 25C 0.5 0.0 308M 7.70M 3295 oem 7:23 4 0 S ? ? gsd-housekeeping
Core 12 26C
2023-02-13 16:02:41 CST 23C
```