Profiling PHP @ PHPCon Poland 2016

Transcript

1. PROFILING PHP SEBASTIAN GRODZICKI

2. WHO USES PHP?

3. WHO USES PHP 7?

4. WHO USES PHPUNIT?

5. WHO USES XDEBUG?

6. WHO USES BLACKFIRE?

7. SEBASTIAN GRODZICKI CTO @ SHOWROOM

8. I’M NOT HIRED BY BLACKFIRE. Sebastian Grodzicki DISCLAIMER

9. 40% OF USERS
 ABANDON A WEBSITE
 THAT TAKES MORE THAN


   3 SECONDS TO LOAD Akamai STATISTICS

10. PROFILING IS A WAY TO MEASURE WHERE A PROGRAM SPENDS

    TIME MathWorks DEFINITION

11. MICROTIME

12. log_format foobar '$remote_addr ' '"$request" $status $body_bytes_sent ' '"$http_referer" "$http_user_agent"

    ' '$request_time $upstream_response_time’; access_log /var/log/nginx/access.log foobar; NGINX

13. Xdebug

14. xdebug.profiler_enable_trigger = 1 http://url?XDEBUG_PROFILE=1

15. KCACHEGRIND

16. PROFILING PHP WEBGRIND

17. XHProf

18. <?php xhprof_enable(); # do some stuff $xhprof_data = xhprof_disable();

19. XHPROF

20. None
21. None

22. PROFILING PHP TIME Wall time I/O CPU Disk I/O Network

    = = + +

23. PROFILING PHP INCLUSIVE VS EXCLUSIVE TIME function foo()
 {
 $str

    = bar(); return $str; } function foo()
 {
 $str = bar(); return $str; }

24. BLACKFIRE CONTINUOUS PERFORMANCE TESTING

25. BLACKFIRE CALLGRAPHS

26. BLACKFIRE HOT PATHS

27. DEMO CHROME COMPANION

28. None
29. None

30. DEMO BLACKFIRE CURL

31. None

32. DEMO BLACKFIRE RUN

33. None
34. None

35. ASSERTIONS

36. PROFILING PHP ASSERTIONS tests: "Application should never hit the DB":

    path: "/.*" assertions: - "metrics.sql.queries.count == 0"

37. PROFILING PHP ASSERTIONS tests: "Homepage should never call the API":

    path: "/" assertions: - "metrics.http.requests.count == 0"

38. PROFILING PHP ASSERTIONS tests: "Pages should be fast enough": path:

    "/.*" assertions: - "main.wall_time < 100ms"
39. None

40. BUILDS

41. None
42. None
43. None

44. PHP SDK

45. BLACKFIRE PHP SDK ▸ composer require blackfire/php-sdk ▸ $blackfire =

    new \Blackfire\Client(); ▸ $probe = $blackfire->createProbe(); ▸ $profile = $blackfire->endProbe($probe);

46. PHPUNIT

47. <?php
 
 use Blackfire\Bridge\PhpUnit\TestCaseTrait;
 use Blackfire\Profile;
 
 class IntegrationTest extends

    \PHPUnit_Framework_TestCase {
 use TestCaseTrait;
 /**
 * @requires extension blackfire
 */
 public function testSomething() {
 $config = new Profile\Configuration();
 $config
 ->assert('metrics.sql.queries.count < 5', 'SQL queries')
 ->assert('metrics.twig.render.count < 3', 'Rendered Twig templates')
 ->assert('metrics.twig.compile.count == 0', 'Twig compilation')
 ;
 }
 }

48. blackfire.io/docs/24-days

49. QUESTIONS?

50. THANK YOU!