Output of Unix top command shows the %cpu is usually 1.2% or higher... but I have the sample rate (27158)

When I run the Unix top command on our server, the output of Unix top command shows the % cpu is usually 1.2% or higher... but I in StealthCollect Administration I have the sample rate set to use at most 1% of the servers CPU

The collector may occasionally exceed the sample rate by a slight margin and this is normal; however, if it is exceeded by any significant amount the middleware will kill and then restart the collector, which will result in data gaps. Unless you're experiencing some unexpected issues with Performance Analysis, such as seeing gaps in the data graph, this is not considered a problem.