class ElasticAPM::Metrics::CpuMemSet

def calculate_deltas(current, previous)
  system_cpu_total =
    current.system_cpu_total - previous.system_cpu_total
  system_cpu_usage =
    current.system_cpu_usage - previous.system_cpu_usage
  process_cpu_usage =
    current.process_cpu_usage - previous.process_cpu_usage
  cpu_usage_pct = system_cpu_usage.to_f / system_cpu_total
  cpu_process_pct = process_cpu_usage.to_f / system_cpu_total
  [cpu_usage_pct, cpu_process_pct]
end