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World of Tanks: Linux and Open Source Inside
World of Tanks: Linux and Open Source Inside
World of Tanks: Linux and Open Source Inside
World of Tanks: Linux and Open Source Inside
World of Tanks: Linux and Open Source Inside
World of Tanks: Linux and Open Source Inside
World of Tanks: Linux and Open Source Inside
World of Tanks: Linux and Open Source Inside
World of Tanks: Linux and Open Source Inside
World of Tanks: Linux and Open Source Inside
World of Tanks: Linux and Open Source Inside
World of Tanks: Linux and Open Source Inside
World of Tanks: Linux and Open Source Inside
World of Tanks: Linux and Open Source Inside
World of Tanks: Linux and Open Source Inside
World of Tanks: Linux and Open Source Inside
World of Tanks: Linux and Open Source Inside
World of Tanks: Linux and Open Source Inside
World of Tanks: Linux and Open Source Inside
World of Tanks: Linux and Open Source Inside
World of Tanks: Linux and Open Source Inside
World of Tanks: Linux and Open Source Inside
World of Tanks: Linux and Open Source Inside
World of Tanks: Linux and Open Source Inside
World of Tanks: Linux and Open Source Inside
World of Tanks: Linux and Open Source Inside
World of Tanks: Linux and Open Source Inside
World of Tanks: Linux and Open Source Inside
World of Tanks: Linux and Open Source Inside
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World of Tanks: Linux and Open Source Inside

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  • 1. World of Tanks Linux and Open Source Inside Maksim Melnikau
  • 2. I’m developer in Wargaming (Belarus, Minsk) Order of War Order of War: Challenge World of Tanks Linux Mobile hobbyist Openmoko systemd telepathy Gentoo World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  • 3. World of Tanks mmorpg fps about tanks 15x15 pvp World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  • 4. World of Tanks Today 800k concurrent users in peak 8M messages per second 500 servers for game and web 60M game portal visits per month 5 PB (petabytes) for game installs and updates per month World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  • 5. Cheaters many players want to cheat cheaters make other players unhappy cheaters xenophobia World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  • 6. Scaleability better product — more users more users — more servers more servers — bigger synchronization problem World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  • 7. Single Datacenter Issues latency availability single point of failure World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  • 8. Big Data more users — more data more data — bigger disks suddenly, new storage solution required World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  • 9. Rapid Growth simple solution — faster time to market great success — simple solutions completely unusable rewriting everything on-the-fly business changes every day World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  • 10. Nobody Will Help You no time to educate people no time to wait 3rd party support no time to write good proper solutions World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  • 11. Full Control software data team hardware World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  • 12. Linux and Open Source Software ready to use components good documentation customize software when required hire people with required skills World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  • 13. World of Tanks Architecture game client — thin client, player server — world simulation cluster — thousands of process working as one server step-game world, with very small steps World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  • 14. Development regular Python GC disabled some parts rewritten on C++ message-based RPC UDP-based reliable internal protocol World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  • 15. Cluster World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  • 16. Multi Cluster scaleability geo distributed availability independence World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  • 17. Production 1. 500 servers 2. 8k cpu cores 3. 32 TB RAM 4. Linux World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  • 18. MySQL database size: 300 GB 384 GB RAM Percona 5.5 (buffer pool warming — 1GBps) 40k selects, 1k inserts, 1k updates per second 24 HDD ∗ 600 GB ∗ 0.5 = 6 TB World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  • 19. Client 1. regular Python 2. HUD - ActionScript, Scaleform 3. 3D graphics - C++ World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  • 20. Web Tasks registrations update distribution news account management docs account profile media statistics payment form ratings receiving payments ... World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  • 21. LNAMPMR World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  • 22. Other World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  • 23. Keys to Success Linux on server relaying on Open Source fast and easy development having full control on everything don’t afraid of different software stacks World of Tanks: Linux and Open Source Inside, Maksim Melnikau
  • 24. Thank You. Questions Maksim Melnikau mailto:m_melnikau@wargaming.net https://plus.google.com/114669104565190507739/ https://twitter.com/max_posedon http://wargaming.com

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