How about a really slow response....  Maybe someone else will stumble across it.    Many Amazon EC2 instances support simultaneous multithreading, which enables multiple threads to run concurrently on a single CPU core. Each thread is represented as a virtual CPU (vCPU) on the instance. An instance has a default number of CPU cores, which varies according to instance type. For example, an m5.xlarge instance type has two CPU cores and two threads per core by default—four vCPUs in total. taken from AWS docs @ https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instance-optimize-cpu.html The  AWS instance-type page states that the c6i.4xl that you were looking at is an ice-lake 8375C processor. What you are getting is use of 16 threads from a  32 core/64 thread processor.  https://en.wikipedia.org/wiki/List_of_Intel_Xeon_processors_(Ice_Lake-based)   ... View more

Hi @ChaoticMike, if you can, please vote for this idea at https://ideas.splunk.com/ideas/EID-I-1731 Ciao. Giuseppe ... View more

Thank you, Incredibly, it didn't occur to me to go look at the log 😂.  Sometimes, seeing the wood for the trees passes me by! I will see if the relevant info is still around - because we are running in AWS, hosts tend to come and go and I don't know if the log will have survived a redeployment. Mike ... View more