module Gitlab module Metrics # Class for tracking timing information about method calls class MethodCall attr_reader :real_time, :cpu_time, :call_count # name - The full name of the method (including namespace) such as # `User#sign_in`. # # series - The series to use for storing the data. def initialize(name, series) @name = name @series = series @real_time = 0.0 @cpu_time = 0.0 @call_count = 0 end # Measures the real and CPU execution time of the supplied block. def measure start_real = System.monotonic_time start_cpu = System.cpu_time retval = yield @real_time += System.monotonic_time - start_real @cpu_time += System.cpu_time - start_cpu @call_count += 1 retval end # Returns a Metric instance of the current method call. def to_metric Metric.new( @series, { duration: real_time, cpu_duration: cpu_time, call_count: call_count }, method: @name ) end # Returns true if the total runtime of this method exceeds the method call # threshold. def above_threshold? real_time >= Metrics.method_call_threshold end end end end