Profiling PHP @ PHPers Warszawa #12

Transcript

1. PROFILING PHP SEBASTIAN GRODZICKI
2. WHO WAS AT PHPCON?
3. SEBASTIAN GRODZICKI CTO @ SHOWROOM
4. 40% OF USERS
 ABANDON A WEBSITE
 THAT TAKES MORE THAN
 3 SECONDS TO LOAD Akamai STATISTICS
5. PROFILING IS A WAY TO MEASURE WHERE A PROGRAM SPENDS TIME MathWorks DEFINITION
6. MICROTIME
7. Xdebug
8. xdebug.profiler_enable_trigger = 1 http://url?XDEBUG_PROFILE=1
9. KCACHEGRIND
10. WEBGRIND
11. XHProf
12. <?php xhprof_enable(); # do some stuff $xhprof_data = xhprof_disable();
13. XHPROF
16. PROFILING PHP TIME Wall time I/O CPU Disk I/O Network = = + +
17. PROFILING PHP INCLUSIVE VS EXCLUSIVE TIME function foo()
 {
 $str = bar(); return $str; } function foo()
 {
 $str = bar(); return $str; }
18. BLACKFIRE CONTINUOUS PERFORMANCE TESTING
19. BLACKFIRE CALLGRAPHS
20. BLACKFIRE HOT PATHS
21. DEMO CHROME COMPANION
24. public function getVersion()
 {
 $process = new Process($this->getPath() . ' --version');
 $process->run();
 
 if (!$process->isSuccessful()) {
 throw new \RuntimeException($process->getErrorOutput());
 }
 
 $version = substr($process->getOutput(), 12);
 
 return trim($version);
 }
25. public function getVersion()
 {
 static $version;
 
 if (null !== $version) {
 return trim($version);
 }
 
 $process = new Process($this->getPath() . ' --version');
 $process->run();
 
 if (!$process->isSuccessful()) {
 throw new \RuntimeException($process->getErrorOutput());
 }
 
 $version = substr($process->getOutput(), 12);
 
 return trim($version);
 }
27. DEMO BLACKFIRE CURL
30. DEMO BLACKFIRE RUN
33. ASSERTIONS
34. PROFILING PHP ASSERTIONS tests: "Application should never hit the DB": path: "/.*" assertions: - "metrics.sql.queries.count == 0"
35. PROFILING PHP ASSERTIONS tests: "Homepage should never call the API": path: "/" assertions: - "metrics.http.requests.count == 0"
36. PROFILING PHP ASSERTIONS tests: "Pages should be fast enough": path: "/.*" assertions: - "main.wall_time < 100ms"
38. BUILDS
42. PHP SDK
43. BLACKFIRE PHP SDK ▸ composer require blackfire/php-sdk ▸ $blackfire = new \Blackfire\Client(); ▸ $probe = $blackfire->createProbe(); ▸ $profile = $blackfire->endProbe($probe);
44. PHPUNIT
45. <?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')
 ;
 }
 }
46. blackfire.io/docs/24-days
47. QUESTIONS?
48. THANK YOU!