Cheatsheet: Difference between revisions
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; Top Command |
; Top Command |
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<pre> |
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top - 01:07:37 up 2:40, 1 user, load average: 0.37, 0.37, 0.39 |
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Tasks: 286 total, 1 running, 285 sleeping, 0 stopped, 0 zombie |
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%Cpu(s): 4.7 us, 1.6 sy, 0.0 ni, 93.8 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st |
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MiB Mem : 15935.7 total, 9403.3 free, 3045.2 used, 3487.1 buff/cache |
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MiB Swap: 4100.0 total, 4100.0 free, 0.0 used. 11720.3 avail Mem |
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PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND |
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6865 aman 20 0 982620 85280 53716 S 6.2 0.5 2:52.77 Xorg |
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10082 aman 20 0 3537624 285448 118848 S 6.2 1.7 5:45.24 gnome-shell |
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</pre> |
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CPU Section |
CPU Section |
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This includes the SHR (shared physical memory) which mean it could have been used by some other process as well. |
This includes the SHR (shared physical memory) which mean it could have been used by some other process as well. |
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;Obtain the PID |
;Obtain the PID: |
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pgrep -n python |
pgrep -n python |
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pidof chrome - return all PIDs |
pidof chrome - return all PIDs |
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dmidecode -t 17 |
dmidecode -t 17 |
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;Usage |
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cat /proc/meminfo ==> egrep --color 'Mem|Cache|Swap' /proc/meminfo |
cat /proc/meminfo ==> egrep --color 'Mem|Cache|Swap' /proc/meminfo |
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top -o %MEM |
top -o %MEM |
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free -m |
free -m |
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total used free shared buff/cache available |
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Mem: 15935 3046 9470 767 3418 11787 |
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Swap: 4099 0 4099 |
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vmstat |
vmstat |
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vmstat -s ==> More detailed |
vmstat -s ==> More detailed |
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htop |
htop |
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;Per Process usage check |
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ps -o pid,user,%mem,command ax | sort -b -k3 -r |
ps -o pid,user,%mem,command ax | sort -b -k3 -r |
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sudo pmap 917 ==> Libraries, |
sudo pmap 917 ==> Libraries, other files, etc usage of memory |
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sudo pmap 917 | tail -n 1 ==> Total used by this process |
sudo pmap 917 | tail -n 1 ==> Total used by this process |
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=== HDD === |
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lsblk ==> List Block Devices only in a tree structure |
lsblk ==> List Block Devices only in a tree structure |
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du |
du |
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df |
df -h |
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Filesystem Type Size Used Avail Use% Mounted on |
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/dev/sda4 ext4 77G 51G 22G 71% / |
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sudo fdisk -l ==> Partition & FS Type details |
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parted ==> List out partitions and modify them |
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== Check IP and DNS info == |
== Check IP and DNS info == |
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