gitlab-org--gitlab-foss/lib/gitlab/metrics/method_call.rb

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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
@cpu_time = 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