When I run cycle process: main() {for (;;) {}} I never see that it
consumes ~100% CPU.
Instead 'top -C' shows something like this, with numbers fluctuating
around the shown numbers:
CPU: 96.2% user, 0.0% nice, 20.0% system, 0.0% interrupt, 0.0% idle
Mem: 653M Active, 995M Inact, 241M Wired, 90M Cache, 112M Buf, 11M Free
Swap: 16G Total, 204M Used, 16G Free, 1% Inuse, 16K In
PID USERNAME THR PRI NICE SIZE RES STATE TIME CPU COMMAND
85422 yuri 1 99 0 2520K 980K RUN 0:21 57.47% cycle
<skipped minor loads>
Total of CPU column for all processes is never what top shows in "CPU:"
field.
At the same time kde system guard app shows 100% overall CPU load and
same cycle app shows as consuming ~85% CPU.
So system guard always shows consistently higher number for the same
process than top -C shows.
On Linux process the cycle app shows as consuming <~100% CPU and total
is also <~100% that makes sense.
Why top's "CPU:" field doesn't equal total of all CPUs for all processes
that it shows?
Why top doesn't show ~100% CPU consumption for the cycle process?
Why sysguard in kde consistently shows higher CPU consumption numbers
than top -C?
Yuri
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