Page Comparison

Configuration/Setup instructions can be found here:  CPU Utilisation case study Configuration

The idea behind this wiki is to look at the CPU metrics from the baremetal host, the hypervisor and the VM itself to see the if the CPU utilisation metrics reported are consistent across all 3.

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               (time_diff_sec * node_cpus * NANOSEC_IN_SEC);

  }

With Isolation (

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Core 10 and 11 were isolated from the OS using the isolcpus argument to grub command line and using virsh to Pin the vCPUs to those cores:

$ virsh vcpupin test 0 10

$ virsh vcpupin test 1 11

$ virsh vcpupin test

VCPU: CPU Affinity

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   0: 10

   1: 11

...

stress test test, 1 second interval)

With Isolation (stress test test, 10 second interval)

Note: stress was ran for 20 seconds in this case

With Isolation (idle test)

Without Isolation (idle test)

Without Isolation (idle test)