Profiling PHP @ PHPCon Poland 2016

PHPCon Poland 2016
http://www.phpcon.pl/2016/pl/

Transcript

1. PROFILING PHP
   SEBASTIAN GRODZICKI
   

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2. WHO USES
   PHP?
   

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3. WHO USES
   PHP 7?
   

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4. WHO USES
   PHPUNIT?
   

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5. WHO USES
   XDEBUG?
   

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6. WHO USES
   BLACKFIRE?
   

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7. SEBASTIAN
   GRODZICKI
   CTO @ SHOWROOM
   

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

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9. 40% OF USERS

   ABANDON A WEBSITE

   THAT TAKES MORE THAN

   3 SECONDS TO LOAD
   Akamai
   STATISTICS
   

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10. PROFILING IS A WAY TO
    MEASURE WHERE A
    PROGRAM SPENDS TIME
    MathWorks
    DEFINITION
    

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11. MICROTIME
    

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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
    

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13. Xdebug
    

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

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15. KCACHEGRIND
    

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16. PROFILING PHP
    WEBGRIND
    

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17. XHProf
    

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

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19. XHPROF
    

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

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

    {

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

    {

    $str = bar();
    return $str;
    }
    

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24. BLACKFIRE
    CONTINUOUS PERFORMANCE TESTING
    

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25. BLACKFIRE
    CALLGRAPHS
    

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26. BLACKFIRE
    HOT PATHS
    

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27. DEMO
    CHROME COMPANION
    

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30. DEMO
    BLACKFIRE CURL
    

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32. DEMO
    BLACKFIRE RUN
    

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35. ASSERTIONS
    

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36. PROFILING PHP
    ASSERTIONS
    tests:
    "Application should never hit the DB":
    path: "/.*"
    assertions:
    - "metrics.sql.queries.count == 0"
    

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37. PROFILING PHP
    ASSERTIONS
    tests:
    "Homepage should never call the API":
    path: "/"
    assertions:
    - "metrics.http.requests.count == 0"
    

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38. PROFILING PHP
    ASSERTIONS
    tests:
    "Pages should be fast enough":
    path: "/.*"
    assertions:
    - "main.wall_time < 100ms"
    

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40. BUILDS
    

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44. PHP SDK
    

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45. BLACKFIRE
    PHP SDK
    ▸ composer require blackfire/php-sdk
    ▸ $blackfire = new \Blackfire\Client();
    ▸ $probe = $blackfire->createProbe();
    ▸ $profile = $blackfire->endProbe($probe);
    

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46. PHPUNIT
    

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47. 

    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')

    ;

    }

    }
    

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48. blackfire.io/docs/24-days
    

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49. QUESTIONS?
    

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50. THANK YOU!
    

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