# File lib/new_relic/agent/threading/backtrace_service.rb, line 273
        def record_skew(poll_start)
          if @last_poll
            skew = poll_start - @last_poll - worker_loop.period
            NewRelic::Agent.record_metric('Supportability/ThreadProfiler/Skew', skew)
          end
          @last_poll = poll_start
        end