So that was you! I never know it was you that filed the wt bug
(but I should have guessed! :^).

I actually agree that the "adding up to 100" really does not matter.
In terms of the practical use of CPU utilization data, I don't really
distinguish between 90% idle and 88% idle, or %sys at 50% versus
54%, etc. Plus or minus 2% for any given CPU state doesn't change
anything in terms of the usefullness of the metric and how I use it.

Thanks,
/jim


Phil Harman wrote:
> Old news, I'm afraid. Any consumer of the cpu sys kstats will seem the 
> same thing. I guess some people just didn't notice until we started 
> discussing it :)
>
> At least I managed to get wt permanently set to zero ...
>
>    4518644 I/O wait statistic is still misleading and should be dropped
>
> http://bugs.opensolaris.org/view_bug.do?bug_id=4518644
>
> Actually, I did try to address this adding up to 100 issue at about the 
> same time, but I was told it didn't matter. Of course now that we have 
> OpenSolaris there's nothing to stop someone who cares enough to propose 
> a fix.
>
> Phil
>
>
>
> Stefan Parvu wrote:
>   
>> CPU minf mjf xcal  intr ithr  csw icsw migr smtx  srw syscl  usr sys  wt idl
>>   0   84   0    0   392  192  706  101    0    0    1  3414   10   3   0  86
>>   0    5   0    0   308  108  230    9    0    0    0   422    1   1   0  97
>>   0    0   0    0   308  108  232    9    0    0    0   416    1   1   0  97
>>   0    1   0    0   311  111  239   10    0    0    0   470    2   2   0  97
>> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>>   0    0   0    0   307  107  234    9    0    0    0   413    1   2   0  97
>>   0    0   0    0   347  147  444   14    0    0    0  1104    2   2   0  96
>>   0    0   0    0   346  146  290    9    0    0    0   451    1   2   0  97
>>
>> It seems this happens as well on mpstat. Hmmm, could be something wider
>> broken ?
>>
>> My system:
>>                   Solaris Express Community Edition snv_103 X86
>>            Copyright 2008 Sun Microsystems, Inc.  All Rights Reserved.
>>                         Use is subject to license terms.
>>                            Assembled 17 November 2008
>>
>> System Configuration: Acer, inc. Ferrari 4000    
>> BIOS Configuration: Acer    3A27 03/20/06
>>
>> Thanks,
>> stefan
>>
>> _______________________________________________
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>> perf-discuss@opensolaris.org
>>   
>>     
>
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