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#!/usr/bin/env ruby
require_relative '../lib/gitlab/popen'
full_report_filename, metrics_filename = ARGV
abort 'usage: memory-static-objects <full_report_filename> <metrics_filename>' unless full_report_filename && metrics_filename
full_report, status = Gitlab::Popen.popen(%w(bundle exec derailed bundle:objects))
abort 'failed to execute the benchmark' unless status.zero?
File.open(full_report_filename, 'w') do |f|
f.write(full_report)
end
allocated_str = full_report.lines[1]
retained_str = full_report.lines[2]
allocated_stats = /Total allocated: (?<bytes>.*) bytes \((?<objects>.*) objects\)/.match(allocated_str)
retained_stats = /Total retained: (?<bytes>.*) bytes \((?<objects>.*) objects\)/.match(retained_str)
abort 'failed to process the benchmark output' unless allocated_stats && retained_stats
File.open(metrics_filename, 'a') do |f|
f.puts "memory_static_objects_allocated_mb #{(allocated_stats[:bytes].to_f / (1024 * 1024)).round(1)}"
f.puts "memory_static_objects_retained_mb #{(retained_stats[:bytes].to_f / (104 * 1024)).round(1)}"
f.puts "memory_static_objects_allocated_items #{allocated_stats[:objects]}"
f.puts "memory_static_objects_retained_items #{retained_stats[:objects]}"
end
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