CODEWITHSUNDEEP
linuxmulticore
or miz
or miz

Reputation: 11

How can i view all cpus in top using a script on a multi core machine

I am writing a script that uses "top" command.

When i use top i can see the average CPU USE:

Cpu(s): 41.9%us, 9.4%sy, 0.0%ni, 48.8%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st

i know i can press "1" to view each CPU separately:

Cpu0 : 8.8%us, 3.0%sy, 0.0%ni, 85.5%id, 2.6%wa, 0.0%hi, 0.1%si, 0.0%st

Cpu1 : 9.7%us, 3.2%sy, 0.0%ni, 83.6%id, 3.4%wa, 0.0%hi, 0.0%si, 0.0%st

but how can i integrate it into a script when i can't use keypresses?

Upvotes: 0

Views: 565

Answers (1)

JNevill
JNevill

Reputation: 50034

You can press 'W' to save your current state. That will generate a .toprc file in your user's home directory it will also mean that the next time you run top as that user all cores will be shown.

It will look something like:

RCfile for "top with windows"           # shameless braggin'
Id:a, Mode_altscr=0, Mode_irixps=1, Delay_time=3.000, Curwin=0
Def     fieldscur=AEHIOQTWKNMbcdfgjplrsuvyzX
        winflags=30009, sortindx=10, maxtasks=0
        summclr=1, msgsclr=1, headclr=3, taskclr=1
Job     fieldscur=ABcefgjlrstuvyzMKNHIWOPQDX
        winflags=62777, sortindx=0, maxtasks=0
        summclr=6, msgsclr=6, headclr=7, taskclr=6
Mem     fieldscur=ANOPQRSTUVbcdefgjlmyzWHIKX
        winflags=62777, sortindx=13, maxtasks=0
        summclr=5, msgsclr=5, headclr=4, taskclr=5
Usr     fieldscur=ABDECGfhijlopqrstuvyzMKNWX
        winflags=62777, sortindx=4, maxtasks=0
        summclr=3, msgsclr=3, headclr=2, taskclr=3

You can check out man top to understand most of this stuff or just screw around in top and 'W' to see what comes out the other end.

Upvotes: 1

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