Command memo to apply load for performance verification

I will add the details of the command etc. as needed.

1.CPU

command

yes > /dev/null

Measurement command example

vmstat dstat top mpstat

2. Memory

command

/dev/null < $(yes)

Measurement command example

vmstat dstat top free 3.IO

command

dd if = / dev / zero of = tempfile bs = block size count = number of blocks

Measurement command example

vmstat dstat iostat

4. Number of processes

command

sleep seconds &

Measurement command example

vmstat dstat top

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