task-1(cpu): use benchmarks and profilers for finding speed points #143
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# Conflicts: # .gitignore # Gemfile # case-study-template.md # update_reports.sh
# Conflicts: # .gitignore # Gemfile # case-study-template.md # update_reports.sh
# Conflicts: # update_reports.sh
# Conflicts: # update_reports.sh
# Conflicts: # update_reports.sh
spajic
approved these changes
May 6, 2024
| .DS_Store | ||
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| # Ignore specific file extensions in all directories. | ||
| *.txt |
| @@ -0,0 +1 @@ | |||
| 3.3.0 | |||
| gem 'ruby-prof' | ||
| gem 'ruby-prof-speedscope' | ||
| gem 'stackprof' | ||
| gem 'vernier' |
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| ### Ваша находка №1 | ||
| ## Вникаем в детали системы, чтобы найти главные точки роста | ||
| Для того, чтобы найти "точки роста" для оптимизации я воспользовался всеми профайлерами из лекции, чтобы получить опыт. |
| ### находка №1 | ||
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| 1) Написал тест задав бюджет: 30 секунд и линейной асимптотикой. | ||
| 2) При выполнении на маленьком data.txt получил логарифмическую асимптотику. |
Collaborator
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логарифмическая это лучше линейной (либо опечатка, либо тест некорректный результат показал)
| Добавил rubyprof flamegraph не затронутый в лекции и установил speedscope локально, чтобы командой запускать: | ||
| `speedscope ruby_prof_reports/task-1_flamegraph_data_file_data20000.txt_disable_gc_true.json` | ||
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| Добавил новый Firefox Profiler, используя гемы: |
| ### находка №2 | ||
| - какой отчёт показал главную точку роста | ||
| - как вы решили её оптимизировать | ||
| rubyprof - flat |
Collaborator
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в чём была проблема - не понятно, как поправили, тоже не понятно
| uniqueBrowsers += [browser] if uniqueBrowsers.all? { |b| b != browser } | ||
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| # uniqueBrowsers += [browser] if uniqueBrowsers.all? { |b| b != browser } | ||
| unique_browsers << browser unless unique_browsers.include?(browser) |
| RubyProf.measure_mode = RubyProf::WALL_TIME | ||
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| result = RubyProf::Profile.profile do | ||
| work(ENV.fetch('DATA_FILE', nil), disable_gc: ENV.fetch('DISABLE_GC', true)) |
Collaborator
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Внутри метода вроде была тоже какая-то логика про ENV-переменную
По дефолту disable_gc: true лучше не стоит, это временная мера на случай если GC вносит сумятицу в профилирование
| DISABLE_GC=$disable_gc DATA_FILE=$filename ruby task-1_vernier.rb | ||
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| # Запуск тестов | ||
| ruby task-1_test.rb |
Collaborator
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лайк за скрипт; делать себе удобно - окупается
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