請問centos如何查看近期硬件資源運行狀況?
.查看硬盤
[root@zhdp01 ~]# df -ah
文件系統 容量 已用 可用 已用% 掛載點
sysfs 0 0 0 - /sys
proc 0 0 0 - /proc
devtmpfs 3.8G 0 3.8G 0% /dev
securityfs 0 0 0 - /sys/kernel/security
tmpfs 3.9G 84K 3.9G 1% /dev/shm
devpts 0 0 0 - /dev/pts
tmpfs 3.9G 42M 3.8G 2% /run
tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup
cgroup 0 0 0 - /sys/fs/cgroup/systemd
pstore 0 0 0 - /sys/fs/pstore
cgroup 0 0 0 - /sys/fs/cgroup/cpu,cpuacct
cgroup 0 0 0 - /sys/fs/cgroup/perf_event
cgroup 0 0 0 - /sys/fs/cgroup/hugetlb
cgroup 0 0 0 - /sys/fs/cgroup/memory
cgroup 0 0 0 - /sys/fs/cgroup/blkio
cgroup 0 0 0 - /sys/fs/cgroup/net_cls
cgroup 0 0 0 - /sys/fs/cgroup/cpuset
cgroup 0 0 0 - /sys/fs/cgroup/devices
cgroup 0 0 0 - /sys/fs/cgroup/freezer
configfs 0 0 0 - /sys/kernel/config
/dev/mapper/centos-root 48G 5.1G 43G 11% /
selinuxfs 0 0 0 - /sys/fs/selinux
mqueue 0 0 0 - /dev/mqueue
hugetlbfs 0 0 0 - /dev/hugepages
debugfs 0 0 0 - /sys/kernel/debug
sunrpc 0 0 0 - /var/lib/nfs/rpc_pipefs
nfsd 0 0 0 - /proc/fs/nfsd
/dev/vda1 497M 204M 294M 41% /boot
tmpfs 781M 24K 781M 1% /run/user/0
gvfsd-fuse 0 0 0 - /run/user/0/gvfs
fusectl 0 0 0 - /sys/fs/fuse/connections
systemd-1 0 0 0 - /proc/sys/fs/binfmt_misc
查看目錄大小du -sh /home
查看內存[root@zhdp01 ~]# free -m
total used free shared buff/cache available
Mem: 7804 950 1851 42 5002 6564
Swap: 2047 0 2047
或者用下面這個命令
cat /proc/meminfo
查看cpu[root@zhdp01 ~]# cat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -c
4 Intel(R) Xeon(R) Gold 5118 CPU @ 2.30GHz
說明是4個邏輯cpu
[root@zhdp01 ~]# cat /proc/cpuinfo | grep physical | uniq -c
1 physical id : 0
1 address sizes : 46 bits physical, 48 bits virtual
1 physical id : 0
1 address sizes : 46 bits physical, 48 bits virtual
1 physical id : 0
1 address sizes : 46 bits physical, 48 bits virtual
1 physical id : 0
1 address sizes : 46 bits physical, 48 bits virtual
實際是4個虛擬化cpu
[root@zhdp01 ~]# cat /proc/cpuinfo | grep physical | uniq -c
1 physical id : 0
1 address sizes : 46 bits physical, 48 bits virtual
1 physical id : 0
1 address sizes : 46 bits physical, 48 bits virtual
1 physical id : 0
1 address sizes : 46 bits physical, 48 bits virtual
1 physical id : 0
1 address sizes : 46 bits physical, 48 bits virtual
當前cpu運行在64位下
[root@zhdp01 ~]# cat /proc/cpuinfo | grep flags | grep ' lm ' | wc -l
4
(結果大于0, 說明支持64bit計算. lm指long mode, 支持lm則是64bit)
再完整看cpu詳細信息, 不過大部分我們都不關心而已. # dmidecode | grep 'Processor Information'
查看當前操作系統內核信息[root@zhdp01 ~]# uname -a
Linux zhdp01 3.10.0-327.el7.x86_64 #1 SMP Thu Nov 19 22:10:57 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
.查看網卡信息# dmesg | grep -i eth
查看系統cat /etc/issue