Upgrade to Pro — share decks privately, control downloads, hide ads and more …

Ruby Garbage Collection

Avatar for Simon Hørup Eskildsen Simon Hørup Eskildsen
May 06, 2013
Programming
1
180

Ruby Garbage Collection

Avatar for Simon Hørup Eskildsen

Simon Hørup Eskildsen

May 06, 2013
Tweet

More Decks by Simon Hørup Eskildsen

See All by Simon Hørup Eskildsen
Advanced Napkin Math: Estimating System's Performance from First Principles
Avatar for Simon Hørup Eskildsen sirupsen
3
690
GOTO Copenhagen 2017: Shopify’s Architecture to Handle 80K RPS Sales
Avatar for Simon Hørup Eskildsen sirupsen
0
590
RailsConf 2016: 5 Years of Scaling Rails to 80K RPS
Avatar for Simon Hørup Eskildsen sirupsen
3
1.1k
Full Stack Fest 2016: Shopify in Multiple Datacenters
Avatar for Simon Hørup Eskildsen sirupsen
6
460
CUSEC 2016: Reliable Software in a Chaotic World
Avatar for Simon Hørup Eskildsen sirupsen
5
650
EuRuKo 2015: Super-Reliable Software
Avatar for Simon Hørup Eskildsen sirupsen
12
3.2k
DockerCon 2015: Resilient Routing and Discovery
Avatar for Simon Hørup Eskildsen sirupsen
22
6.6k
Goruco 2015: Building and Testing Resilient Applications
Avatar for Simon Hørup Eskildsen sirupsen
2
310
GOTO Chicago: Patterns for Docker Success
Avatar for Simon Hørup Eskildsen sirupsen
1
310

Other Decks in Programming

See All in Programming
あなたの知らない「動画広告」の世界 - iOSDC Japan 2025
Avatar for ukitaka ukitaka
0
300
Local Peer-to-Peer APIはどのように使われていくのか？
Avatar for Hal hal_spidernight
2
410
CI_CD「健康診断」のススメ。現場でのボトルネック特定から、健康診断を通じた組織的な改善手法
Avatar for teamLab teamlab
PRO
0
140
CSC509 Lecture 03
Avatar for Javier Gonzalez-Sanchez javiergs
PRO
0
320
Build your own WebP codec in Swift
Avatar for Kishikawa Katsumi kishikawakatsumi
2
840
PostgreSQLで手軽にDuckDBを使う！DuckDB&pg_duckdb入門/osk2025-duckdb
Avatar for Takahashi Ikki takahashiikki
1
230
CSC509 Lecture 01
Avatar for Javier Gonzalez-Sanchez javiergs
PRO
1
430
iOSDC.pdf
Avatar for ビスター chronos2500
2
640
OWASP Kansai DAY 2025.09: OSINTにふれてみよう
Avatar for Tomohiko Morita deka_morita
0
160
大規模アプリにおけるXcode Previews実用化までの道のり
Avatar for Sho Ikeda ikesyo
0
950
実践AIチャットボットUI実装入門
Avatar for syumai syumai
7
2.3k
dynamic!
Avatar for MOROHASHI Kyosuke moro
9
4.3k

Featured

See All Featured
Building an army of robots
Avatar for Kyle Neath kneath
306
46k
Being A Developer After 40
Avatar for Adrian Kosmaczewski akosma
90
590k
Product Roadmaps are Hard
Avatar for C. Todd Lombardo iamctodd
PRO
54
11k
The Success of Rails: Ensuring Growth for the Next 100 Years
Avatar for Eileen M. Uchitelle eileencodes
46
7.6k
Keith and Marios Guide to Fast Websites
Avatar for Keith Pitt keithpitt
411
22k
Distributed Sagas: A Protocol for Coordinating Microservices
Avatar for Caitie McCaffrey caitiem20
333
22k
4 Signs Your Business is Dying
Avatar for Josh Pigford shpigford
185
22k
Side Projects
Avatar for Sacha Greif sachag
455
43k
Improving Core Web Vitals using Speculation Rules API
Avatar for Sergey Chernyshev sergeychernyshev
18
1.2k
Into the Great Unknown - MozCon
Avatar for Noah Learner thekraken
40
2.1k
実際に使うSQLの書き方 徹底解説 / pgcon21j-tutorial
Avatar for soudai sone soudai
PRO
188
55k
A Modern Web Designer's Workflow
Avatar for Chris Coyier chriscoyier
697
190k

Transcript

  1. Ruby Garbage Collection Simon Hørup Eskildsen @Sirupsen

  2. None

  3. Mark and Sweep (< 1.9) Lazy Sweeping (>= 1.9) Lazy

    Bitmask Sweeping (2.0) Geneartional GC (2.1?) Concurrent GC (??)

  4. Mark and Sweep

  5. None
  6. None

  7. RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE

  8. None
  9. None

  10. Root objects Freeable

  11. None

  12. RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE

  13. RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE

  14. None

  15. RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE

    Free List

  16. RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE

    Free List

  17. RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE Free

    List

  18. RVALUE RCLASS RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE Free

    List

  19. The Copy-on-Write Problem

  20. None
  21. None

  22. Process #2 Process #1

  23. Process #2 Process #1

  24. None
  25. None

  26. Process #2 Process #1 ? ? ? ? ? ?

    ?
  27. None

  28. Process #2 Process #1

  29. Ruby 2.0

  30. 0 0 1 0 0 1 1

  31. None

  32. Process #2 Process #1 bar foo

  33. CoW problem fixed: => Less memory => Faster

  34. Geneartional GC Ruby 2.1?

  35. Root objects Freeable M&S Freeable

  36. Old Root objects Freeable Old M&S Freeable

  37. Prospects of a Concurrent GC