TOP shows above 100% WCPU usage

[Bill LeFebvre]

Dan Nelson wrote:
> One problem is that method doesn't scale to lots of CPUs.  On a Sun
> T2000 a non-threaded process consuming all of one CPU would only report
> 3.12 %CPU in that case (100/32).

I agree.  The alternative is having a 10-thread process on such a system 
report 1000% cpu utilization, and/or having the sum of the cpu utilization 
column be 3200.  Not sure which is worse.

> 
> I just built top-3.6 on such a system, though, and it does report a
> simple "main(){for(;;);}" process as consuming 100 %CPU.  Maybe you're
> thinking of Solaris's own prstat command?
> 

Heh.  I released 3.6 with new SunOS code that didn't adjust for number of 
cpus, and someone flagged the behavior as a bug.   So you're right: 3.6 
doesn't do it this way.  But 3.5 did, and it seems at least some people 
prefer it that way.

Bill LeFebvre