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Puzzled by the sar command output

the_bro
Posts: 17
In the System Monitoring section, the command sudo sar 3 3 is run; the resulting report shows the system is idle twice for 100% of the time.
How can that be? Surely if a system is not doing anything it must be hung or stopped and if it's in either of these states, how can it run again 3 seconds later?
I've run the command many times and have failed to duplicate this!
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Comments
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There is nothing wrong with the output. It is just rounding up to 100 percent I guess--the system was really really idle. For example on a system I am running right now (RHEL 8):
c8:/home/coop>sudo sar 3 3 Linux 5.16.0 (c8) 01/15/2022 _x86_64_ (8 CPU) 09:08:30 AM CPU %user %nice %system %iowait %steal %idle 09:08:33 AM all 0.21 0.00 0.13 0.00 0.00 99.67 09:08:36 AM all 0.25 0.00 0.04 0.00 0.00 99.71 09:08:39 AM all 0.17 0.00 0.08 0.04 0.00 99.71 Average: all 0.21 0.00 0.08 0.01 0.00 99.69
Pretty close to 100 percent, which I agree is a little unexpected but not wrong.
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