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# File 'lib/barnes/instruments/stopwatch.rb', line 36
def instrument!(state, counters, gauges)
last = state[:stopwatch]
wall_elapsed = @timepiece.wall - last[:wall]
counters[:'Time.wall'] = wall_elapsed
if @has_cpu_time
cpu_elapsed = @timepiece.cpu - last[:cpu]
idle_elapsed = wall_elapsed - cpu_elapsed
counters[:'Time.cpu'] = cpu_elapsed
counters[:'Time.idle'] = idle_elapsed
if wall_elapsed == 0
counters[:'Time.pct.cpu'] = 0
counters[:'Time.pct.idle'] = 0
else
counters[:'Time.pct.cpu'] = 100.0 * cpu_elapsed / wall_elapsed
counters[:'Time.pct.idle'] = 100.0 * idle_elapsed / wall_elapsed
end
end
state[:stopwatch] = current
end
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