Download to read offline
Uploaded byBadoo
How Badoo Saved $1M Switching to PHP7 - Nikolay Krapivnyy - PHPDay Verona 2016
Badoo transitioned to PHP 7 to overcome CPU performance bottlenecks and successfully saved $1 million in server costs by improving memory and CPU usage. The transition included creating compatible extensions, utilizing tools like Pinba for performance monitoring, and implementing soft mocks for testing, leading to significant operational efficiency. Overall, the migration to PHP 7 enhanced Badoo's backend capabilities, demonstrating the importance of understanding performance issues and sharing best practices.
More Related Content
Similar to How Badoo Saved $1M Switching to PHP7 - Nikolay Krapivnyy - PHPDay Verona 2016
![Vibe Coding vs. Spec-Driven Development [Free Meetup]](https://cdn.slidesharecdn.com/ss_thumbnails/vibecodingvsspecdrivendevelopment-251209105622-43f455e7-thumbnail.jpg?width=640&height=640&fit=bounds)
How Badoo Saved $1M Switching to PHP7 - Nikolay Krapivnyy - PHPDay Verona 2016
- 1. How Badoo Saved$1M Switching to PHP7 Nikolay Krapivnyy phpday.it, 2016
- 2. About me ✦ NikolayKrapivnyy ✦ 10+ years PHP experience ✦ 5 years with Badoo, now backend team lead ✦ This is my first talk in English :)
- 3. 46languages data 300M users190countries “ BADOO IS THE LARGESTDATING NETWORK IN THE WORLD — Forbes
- 4. Badoo tech: ✦ 4datacenters, ~3,000 servers overall ✦ up to 80,000 RPS for php backend ✦ ~200 engineers (~70 php devs) ✦ >2M PHP LoC ✦ and growing….
- 6. Today I will: ✦Share our practical experience ✦ Talk about some of our tools ✦ Tell you a million dollar story :)
- 7. 1. Problem 2. Transition 3.Results
- 8.
- 9. DBs CLOUD SERVICES LTM How itworks: APP HTTPHTTP API API
- 10. 9 % 15 % 22% 22 % 32 % php mysql other photos c/go Hardware
- 11. 32% or 1000 ofour servers are running php
- 12. PHP Cluster Growth 0 125 250 375 500 Jan,2014 Jul, 2014 Jan, 2015 Jul, 2015 Jan, 2016 servers in 1DC users
- 13. CPU is themain bottleneck for us
- 14. How do we measurephp performance?
- 15. Pinba! ✦ Php isnot a bottleneck anymore ✦ RT performance monitoring tool ✦ Extension for php + plugin for mysql ✦ Open source! http://pinba.org/
- 16. Request time ✦ SomeAPI call: GET_USER ✦ avg request time = 0.12 sec ✦ request time = cpu time + i/o time ✦ i/o time = mysql + services + FS i/o +…
- 17.
- 18.
- 19. Request time ✦ 0.12sec = 0.07 (cpu) + 0.05 (i/o) ✦ 0.05 (i/o) = 0.012 + 0.05 + 0.03 + … ✦ 0.012 (memcache) = ~26*0.0005 ✦ Realtime!
- 20. CPU usage takes ~50%of our request time
- 21. PHP7 alternatives? ✦ HHVM(Facebook, http://hhvm.com/) ✦ kPHP (VK.com, https://github.com/vk-com/kphp-kdb) + JIT, PHP5 compatible — C++, extensions API + faster then HHVM — no OOP support at all
- 22.
- 23. Platform team: ✦ Cdevelopers ✦ Php developers ✦ Badoo infrastructure support
- 24. Transition steps: 2.1. Extensions 2.2.Codebase 2.3. Deploy
- 25. PHP7: extensions xdebug apcu lua imagick ✦ ~30of them ✦ Already supported:
- 26.
- 27. PHP7: extensions https://github.com/tony2001 All php7versions available: Check for php7 branch
- 28. We thought we weredone, but…
- 29.
- 30. What is runkit? ✦runkit_method_add/redefine ✦ runkit_constant_add/redefine ✦ in runtime ✦ but why?
- 31.
- 32. Unit testing: ✦ 60KTests now ✦ Coverage >50% ✦ Introduced only a few years ago ✦ Runkit: to isolate old code
- 33. Runkit: summary ✦ essentialfor us ✦ no support for php7
- 34. Runkit for php7? ✦It`s different ✦ Alternatives? • UOPZ (https://github.com/krakjoe/uopz) ✦ Lots of changes anyway
- 35.
- 36. Soft mocks! ✦ Softmeans no extension ✦ Plain PHP, compatible with all PHP ✦ Replaces Runkit for us ✦ Open source! (https://github.com/badoo/soft-mocks)
- 37. How it works: ✦Rewrites code on the fly ✦ Inserts "interceptors" in methods ✦ Wraps all constant usages ✦ Uses PHP-Parser
- 38. 1 require_once(__DIR__ .'/path.inc'); 2 ini_set(‘pinba.enabled', 1); 3 echo RRD_BASE_PATH; 1 require_once SoftMocks::rewrite( ROOT_PATH . '/path' . '/path.inc' ); 2 SoftMocks::call( 'ini_set', array('pinba.enabled', 1’) ); 3 echo SoftMocks::getConst(‘RRD_BASE_PATH'); Original After SoftMocks::rewrite()
- 39. 1 class A 2{ 3 public function getValue() 4 { 5 return 10; 6 } 7 } 1 class A 2 { 3 public function getValue() 4 { if (SoftMocks::isMocked(A::class, __FUNCTION__)) { return SoftMocks::getResult(…); } 5 return 10; 6 } 7 } Original After SoftMocks::rewrite()
- 40. So… ✦ No extensiondependency ✦ 1.5 weeks for development ✦ A bit longer to adapt tests ✦ More stable tests in general
- 41. https://github.com/YuriyNasretdinov Credits More cool stuff: Softmocks: https://github.com/badoo/soft-mocks
- 42.
- 43. php7mar ✦ https://github.com/Alexia/php7mar ✦ MigrationAssistant Report
- 44. php7mar 469 * foreachByReference 230* oldClassConstructors 156 * funcGetArg 22 * hexadecimalString 19 * variableInterpolation 14 * yield 7 * deprecatedFunctions 4 * reservedNames 3 * arrayValueByReference
- 45.
- 46. Deploy ✦ Devel: separatesandbox ✦ Staging ✦ Production
- 47. Deploy: production ✦ Severalhosts in each cluster ✦ Several weeks of quarantine ✦ CLI: OK, WEB: ERROR ✦ WEB: fix for opcache reset in FPM
- 48.
- 49.
- 50.
- 51.
- 52. We got: 2x CPUusage 9x memory usage
- 53. ✦ 700 serversrunning FPM ✦ 1/2 required ✦ ~$4K each ✦ 350*4K = $1,4M Let's calculate
- 55. Links ✦ Pinba: http://pinba.org/ ✦Soft mocks: https://github.com/badoo/soft-mocks ✦ php7mar: https://github.com/Alexia/php7mar ✦ php7 exts: https://github.com/tony2001
- 56. Summary: ✦ PHP7 rocks! ✦Know your bottleneck ✦ Find your way ✦ Share!
- 57.
- 58. Questions? Twitter: @BadooTech Blog: https://techblog.badoo.com LinkedIn:https://linkedin.com/in/nkrapivnyy Email: cyberklin@gmail.com Joind.in: https://joind.in/talk/948d4