uptime query

[Malcolm McKenzie]

Does anyone know what the JCPU and PCPU columns signify in the output of the uptime -w command?

[Felix J. Liu · Accepted solution]

Here is what I found:

The JCPU time is the time used by all processes attached
to the tty. It does not include past background jobs, but
does include currently running background jobs.

The PCPU time is the time used by the current process,
named in the "what" field.

Hope this helps.