Cheatsheet: Difference between revisions
→Commands
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us - user cpu time (or) % CPU time spent in user space▼
sy - system cpu time (or) % CPU time spent in kernel space▼
ni - user nice cpu time (or) % CPU time spent on low priority processes▼
id - idle cpu time (or) % CPU time spent idle▼
wa - io wait cpu time (or) % CPU time spent in wait (on disk)▼
hi - hardware irq (or) % CPU time spent servicing/handling hardware interrupts▼
si - software irq (or) % CPU time spent servicing/handling software interrupts▼
st - steal time % CPU time in involuntary wait by virtual cpu while hypervisor is servicing another processor (or) % CPU time stolen from a virtual machine▼
%cpu Section
▲ st
Main Section:
%MEM directly related to RES, percentage use of total physical memory by the process.
VIRT total memory that this process has access to shared memory, mapped pages, swapped out pages, etc.
RES total physical memory used shared or private that the process has access to.
SHR total physical shared memory that the process has access to.
RES is most close to the memory used by the process in memory, excluding what’s swapped out.
This includes the SHR (shared physical memory) which mean it could have been used by some other process as well.
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