Re: OT processes and cpu use
On 2007-02-20, Mike McCarty <Mike.McCarty@sbcglobal.net> wrote:
> Tyler Smith wrote:
>> On 2007-02-19, Tyler Smith <firstname.lastname@example.org> wrote:
>> Sorry for reposting, but I should add that my concern stems in part
>> from top reporting that 27% of the CPU is being used by users, and 73%
>> by system, which conflicts with the line item for paup, a user
>> process, which shows 99% CPU use. So I'm not sure if paup is using 99%
>> or 27% of the CPU:
> This is not a conflict. There are no such thing as "user processes"
> and "system processes". You are looking at different kinds of breakdown.
>> Cpu(s): 26.7%us, 73.3%sy, 0.0%ni, 0.0%id, 0.0%wa, 0.0%hi, 0.0%si,
>> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
>> 14385 tyler 25 0 141m 140m 660 R 99.7 9.3 82:34.35 paup
> What this says is that paup is using all (99.7%) of the CPU, and that
> of this 26.7% is spent executing in user mode, and 73.3% is
> spent executing in supervisor mode. Ordinary programs switch
> the operating mode of the processor by making system calls.
> The time allocated to the process is partly in user mode, and
> partly in system mode. If you read the manual page for "time"
> you'll get a little more information.
Thanks, that does help. I went through the docs for 'top' but didn't
find what I needed.