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The c5d.2xlarge
instance type has 8 vCPUs. top
will report CPU usage as a percentage of a single CPU. You can press I
(shift + i, capital I) to toggle Irix mode, which is explained as:
1. %CPU -- CPU Usage
The task's share of the elapsed CPU time since the last screen
update, expressed as a percentage of total CPU time. In a
true SMP environment, if 'Irix mode' is Off, top will operate
in 'Solaris mode' where a task's cpu usage will be divided by
the total number of CPUs. You toggle 'Irix/Solaris' modes
with the 'I' interactive command.
Otherwise, you can press 1
within top to show a break down of all the CPUs. This should give you data that is closer to what CloudWatch shows.
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