75 lines
2.1 KiB
Ruby
75 lines
2.1 KiB
Ruby
# frozen_string_literal: true
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require 'prometheus/pid_provider'
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module Gitlab
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module Utils
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class Measuring
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def initialize(logger: Logger.new($stdout))
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@logger = logger
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end
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def with_measuring
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logger.info "Measuring enabled..."
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with_gc_counter do
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with_count_queries do
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with_measure_time do
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yield
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end
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end
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end
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logger.info "Memory usage: #{Gitlab::Metrics::System.memory_usage.to_f / 1024 / 1024} MiB"
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logger.info "Label: #{::Prometheus::PidProvider.worker_id}"
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end
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private
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attr_reader :logger
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def with_count_queries(&block)
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count = 0
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counter_f = ->(_name, _started, _finished, _unique_id, payload) {
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count += 1 unless payload[:name].in? %w[CACHE SCHEMA]
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}
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ActiveSupport::Notifications.subscribed(counter_f, "sql.active_record", &block)
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logger.info "Number of sql calls: #{count}"
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end
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def with_gc_counter
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gc_counts_before = GC.stat.select { |k, _v| k =~ /count/ }
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yield
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gc_counts_after = GC.stat.select { |k, _v| k =~ /count/ }
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stats = gc_counts_before.merge(gc_counts_after) { |_k, vb, va| va - vb }
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logger.info "Total GC count: #{stats[:count]}"
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logger.info "Minor GC count: #{stats[:minor_gc_count]}"
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logger.info "Major GC count: #{stats[:major_gc_count]}"
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end
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def with_measure_time
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timing = Benchmark.realtime do
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yield
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end
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logger.info "Time to finish: #{duration_in_numbers(timing)}"
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end
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def duration_in_numbers(duration_in_seconds)
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milliseconds = duration_in_seconds.in_milliseconds % 1.second.in_milliseconds
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seconds = duration_in_seconds % 1.minute
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minutes = (duration_in_seconds / 1.minute) % (1.hour / 1.minute)
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hours = duration_in_seconds / 1.hour
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if hours == 0
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"%02d:%02d:%03d" % [minutes, seconds, milliseconds]
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else
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"%02d:%02d:%02d:%03d" % [hours, minutes, seconds, milliseconds]
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end
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end
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end
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end
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end
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