Re: IRIX mode for top command in linux

so your statement " The below is occupying 99% of CPU yet overall we have 84.5% idle CPU." is accurate.

This line: " %Cpu(s): 12.5 us, 2.8 sy, 0.0 ni, 84.5 id, 0.0 wa, 0.0 hi, 0.1 si, 0.0 st" is an aggregate function.

HTH D

On Tue, Jan 18, 2022 at 9:46 PM Goti <aryan.goti_at_gmail.com> wrote:

> Hi Douglas,
>
> Yes it does show.
>
> top - 01:45:04 up 14:38, 1 user, load average: 2.83, 2.93, 3.14
> Tasks: 504 total, 3 running, 501 sleeping, 0 stopped, 0 zombie
> %Cpu0 : 17.7 us, 17.4 sy, 0.0 ni, 64.9 id, 0.0 wa, 0.0 hi, 0.0 si,
> 0.0 st
> %Cpu1 : 45.0 us, 13.9 sy, 0.0 ni, 41.1 id, 0.0 wa, 0.0 hi, 0.0 si,
> 0.0 st
> %Cpu2 : 65.3 us, 11.0 sy, 0.0 ni, 23.7 id, 0.0 wa, 0.0 hi, 0.0 si,
> 0.0 st
> %Cpu3 : 20.8 us, 12.9 sy, 0.0 ni, 66.3 id, 0.0 wa, 0.0 hi, 0.0 si,
> 0.0 st
> %Cpu4 : 15.0 us, 20.7 sy, 0.0 ni, 64.3 id, 0.0 wa, 0.0 hi, 0.0 si,
> 0.0 st
> %Cpu5 : 69.9 us, 16.7 sy, 0.0 ni, 13.4 id, 0.0 wa, 0.0 hi, 0.0 si,
> 0.0 st
> %Cpu6 : 20.5 us, 10.7 sy, 0.0 ni, 68.8 id, 0.0 wa, 0.0 hi, 0.0 si,
> 0.0 st
> %Cpu7 : 13.0 us, 16.3 sy, 0.0 ni, 70.8 id, 0.0 wa, 0.0 hi, 0.0 si,
> 0.0 st
> KiB Mem : 65791984 total, 1877504 free, 59237028 used, 4677452 buff/cache
> KiB Swap: 0 total, 0 free, 0 used. 5889832 avail Mem
>
> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+
> COMMAND
> 112998 oracle 20 0 52.6g 235544 26672 R 98.7 0.4 68:57.98
> oracle_112998_c
> 38775 oracle 20 0 52.4g 59412 33968 R 98.0 0.1 44:07.96
> ora_j000_cdp028
>
> Thanks,
>
> Goti
>
>
> On Wed, Jan 19, 2022 at 10:09 AM Douglas Dunyan <dmdunyan_at_gmail.com>
> wrote:
>
>> Hmmm....when running top, and you press the "1" key on your keyboard,
>> does it show cpu0 --> cpu7 ?
>>
>> Just a guess....I can't imagine a system with a 52 Gb sga being only 1
>> vCPU...
>>
>> D
>>
>> On Tue, Jan 18, 2022 at 8:56 PM Goti <aryan.goti_at_gmail.com> wrote:
>>
>>> Hi All,
>>>
>>> Can someone explain the meaning of IRIX mode for top command in Linux?
>>> For databases running on VM's, when running top, should we turn off the
>>> IRIX mode to get the exact CPU utilization? The below is occupying 99% of
>>> CPU yet overall we have 84.5% idle CPU.
>>>
>>> top - 00:52:37 up 13:46, 1 user, load average: 2.00, 2.30, 2.43
>>> Tasks: 507 total, 4 running, 503 sleeping, 0 stopped, 0 zombie
>>> %Cpu(s): 12.5 us, 2.8 sy, 0.0 ni, 84.5 id, 0.0 wa, 0.0 hi, 0.1 si,
>>> 0.0 st
>>> KiB Mem : 65791984 total, 1684392 free, 59226316 used, 4881276
>>> buff/cache
>>> KiB Swap: 0 total, 0 free, 0 used. 5909356 avail
>>> Mem
>>>
>>> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+
>>> COMMAND
>>> 112998 oracle 20 0 52.6g 235508 26536 R 99.7 0.4 17:59.26
>>> oracle_112998_c <<<< 99% CPU , however total seems to be less.
>>> 3704 root 20 0 554212 24212 10176 S 1.7 0.0 17:49.27
>>> BESClient
>>> 4229 oracle 20 0 1384960 42856 22832 S 0.7 0.1 4:03.95
>>> oraagent.bin
>>>
>>> Thanks,
>>>
>>> Goti
>>>
>>

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