61 lines
1.7 KiB
Ruby
61 lines
1.7 KiB
Ruby
# frozen_string_literal: true
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module Gitlab
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module Metrics
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# Class for tracking timing information about method calls
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class MethodCall
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attr_reader :real_time, :cpu_time, :call_count
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# name - The full name of the method (including namespace) such as
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# `User#sign_in`.
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#
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def initialize(name, module_name, method_name, transaction)
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@module_name = module_name
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@method_name = method_name
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@transaction = transaction
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@name = name
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@labels = { module: @module_name, method: @method_name }
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@real_time = 0.0
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@cpu_time = 0.0
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@call_count = 0
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end
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# Measures the real and CPU execution time of the supplied block.
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def measure
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start_real = System.monotonic_time
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start_cpu = System.cpu_time
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retval = yield
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real_time = System.monotonic_time - start_real
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cpu_time = System.cpu_time - start_cpu
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@real_time += real_time
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@cpu_time += cpu_time
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@call_count += 1
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if above_threshold? && transaction
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label_keys = labels.keys
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transaction.observe(:gitlab_method_call_duration_seconds, real_time, labels) do
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docstring 'Method calls real duration'
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label_keys label_keys
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buckets [0.01, 0.05, 0.1, 0.5, 1]
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with_feature :prometheus_metrics_method_instrumentation
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end
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end
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retval
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end
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# Returns true if the total runtime of this method exceeds the method call
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# threshold.
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def above_threshold?
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real_time.in_milliseconds >= ::Gitlab::Metrics.method_call_threshold
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end
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private
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attr_reader :labels, :transaction
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end
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end
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end
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