[PHP Stockholm] HTTP/2 Lightning Talk

A 5 minute or less introduction to HTTP/2 and why you should be using it.

Transcript

1. H T T P/ 2
   

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2. D AV E Y S H A F I K
   • Developer
   • Author
   • Open Source Contributor
   • Release Manager for PHP 7.1
   • @dshafik
   

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3. h tt p : / /d e v e l o p e r. a ka m a i .co m
   

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4. H T T P/ 2
   A KA : H 2
   

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6. B R O W S E R S U P P O RT
   

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7. B R O W S E R S U P P O RT
   • Chrome + Chrome Mobile
   • Firefox
   • IE 11 on Windows 10
   • MS Edge
   • Safari (El Capitan/iOS 9)
   • Opera
   

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8. A L L B R O W S E RS R E Q U I R E T LS FO R H T T P/ 2
   CC-BY: Jason Baker
   

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9. W H AT I S H T T P/ 2 ?
   CC-BY: Marco Bellucci
   

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10. B I N A R Y I N ST E A D O F T E XT
    CC-BY: brett jordan
    

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11. F U L LY M U LT I P L E X E D
    CC-BY: vadikunc
    I N S T E A D O F O R D E R E D A N D B L O C K I N G
    

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12. C A N US E O N E CO N N E CT I O N 

    FO R PA R A L L E L R E Q U E STS
    CC-BY: Alosh Bennett
    

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13. US E S H E A D E R CO M P R E SS I O N
    CC-BY-SA: Magnus Hagdorn
    R E D U C E S O V E R H E A D
    

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14. S E R V E R P U S H
    I S S U P E R CO O L ( N O R E A L LY )
    CC-BY-SA: Takeshi
    

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15. S E R V E R P U S H
    • Allows the server to proactively push assets like stylesheets and
    images to the client without them needing to parse the HTML page
    and make subsequent requests
    • Done by pushing the assets into the client cache, avoiding the
    roundtrip necessary to pull them up once the client makes the
    request
    

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16. W H AT D O E S H T T P/ 2 M E A N F O R M Y
    A P P L I C AT I O N ?
    

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17. T R A N S PA R E N T
    CC-BY-SA: Patty
    H A N D L E D B Y N G I N X / A PA C H E
    

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18. S O W H AT ’ S T H E P O I N T ?
    

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19. H T T P/ 1 . X S U C K S
    CC-BY: Flóra Soós
    

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20. H T T P/ 1 . X S U C K S
    • Minify + Concat JavaScript and CSS
    • Inlining small JavaScript and CSS
    • Using image sprites
    • Using data: URIs
    • Domain sharding
    

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21. T H E S E T H I N G S A R E A L L " C L E V E R " H AC K S
    CC-BY: Matt Biddulph
    

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22. CO D E
    

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23. $numRequests = 378;
    

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25. $url = 'https://http2.akamai.com/demo/tile-%d.png';
    for ($i = 0; $i <= $numRequests; $i++) {
    $ch = curl_init();
    $conf[CURLOPT_URL] = sprintf($url, $i);
    curl_exec($ch);
    curl_close($ch);
    }
    

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26. $url = 'https://http2.akamai.com/demo/tile-%d.png';
    for ($i = 0; $i <= $numRequests; $i++) {
    $ch = curl_init();
    $conf[CURLOPT_URL] = sprintf($url, $i);
    curl_exec($ch);
    curl_close($ch);
    }
    

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27. $url = 'https://http2.akamai.com/demo/tile-%d.png';
    for ($i = 0; $i <= $numRequests; $i++) {
    $ch = curl_init();
    $conf[CURLOPT_URL] = sprintf($url, $i);
    curl_exec($ch);
    curl_close($ch);
    }
    

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28. $url = 'https://http2.akamai.com/demo/tile-%d.png';
    for ($i = 0; $i <= $numRequests; $i++) {
    $ch = curl_init();
    $conf[CURLOPT_URL] = sprintf($url, $i);
    curl_exec($ch);
    curl_close($ch);
    }
    

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29. $url = 'https://http2.akamai.com/demo/tile-%d.png';
    for ($i = 0; $i <= $numRequests; $i++) {
    $ch = curl_init();
    $conf[CURLOPT_URL] = sprintf($url, $i);
    curl_exec($ch);
    curl_close($ch);
    }
    

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30. 4 7 . 6 7 

    s e co n d s
    CC-BY: Hernán Piñera
    

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31. H T T P/ 2 : SY N C H R O N O US
    $url = 'https://http2.akamai.com/demo/tile-%d.png';
    for ($i = 0; $i <= $numRequests; $i++) {
    $ch = curl_init();
    $conf[CURLOPT_URL] = sprintf($url, $i);
    curl_setopt($ch, CURLOPT_HTTP_VERSION, HTTP_VERSION_2_0);
    curl_exec($ch);
    curl_close($ch);
    }
    

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32. H T T P/ 2 : SY N C H R O N O US
    $url = 'https://http2.akamai.com/demo/tile-%d.png';
    for ($i = 0; $i <= $numRequests; $i++) {
    $ch = curl_init();
    $conf[CURLOPT_URL] = sprintf($url, $i);
    curl_setopt($ch, CURLOPT_HTTP_VERSION, HTTP_VERSION_2_0);
    curl_exec($ch);
    curl_close($ch);
    }
    

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33. 6 2 . 1 9 

    s e co n d s
    CC-BY-NC: Scott Beckner
    

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34. $mh = curl_multi_init();

    $url = 'https://http2.akamai.com/demo/tile-%d.png';

    for ($i = 0; $i <= $numRequests; $i++) {
    $handles[] = $ch = curl_init();
    $conf[CURLOPT_URL] = sprintf($url, ‘%d');
    curl_multi_add_handle($mh, $ch);
    }
    H T T P/ 1 . 1 : CO N CU R R E N T
    

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35. $mh = curl_multi_init();

    $url = 'https://http2.akamai.com/demo/tile-%d.png';

    for ($i = 0; $i <= $numRequests; $i++) {
    $handles[] = $ch = curl_init();
    $conf[CURLOPT_URL] = sprintf($url, ‘%d');
    curl_multi_add_handle($mh, $ch);
    }
    H T T P/ 1 . 1 : CO N CU R R E N T
    

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36. $mh = curl_multi_init();

    $url = 'https://http2.akamai.com/demo/tile-%d.png';

    for ($i = 0; $i <= $numRequests; $i++) {
    $handles[] = $ch = curl_init();
    $conf[CURLOPT_URL] = sprintf($url, ‘%d');
    curl_multi_add_handle($mh, $ch);
    }
    H T T P/ 1 . 1 : CO N CU R R E N T
    

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37. $mh = curl_multi_init();

    $url = 'https://http2.akamai.com/demo/tile-%d.png';

    for ($i = 0; $i <= $numRequests; $i++) {
    $handles[] = $ch = curl_init();
    $conf[CURLOPT_URL] = sprintf($url, ‘%d');
    curl_multi_add_handle($mh, $ch);
    }
    H T T P/ 1 . 1 : CO N CU R R E N T
    

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38. H T T P/ 1 . 1 : CO N CU R R E N T ( CO N T. )
    do {
    $exec = curl_multi_exec($mh, $running);
    } while ($exec == CURLM_CALL_MULTI_PERFORM);
    while ($running && $exec == CURLM_OK) {
    $ready = curl_multi_select($mh);
    if ($ready != -1) {
    do {
    $exec = curl_multi_exec($mh, $running);

    } while ($exec == CURLM_CALL_MULTI_PERFORM);
    }
    }
    

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39. 8 . 6 6 

    s e co n d s
    

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40. $url = 'https://http2.akamai.com/demo/tile-%d.png';

    for ($i = 0; $i <= $numRequests; $i++) {
    $handles[] = $ch = curl_init();
    $conf[CURLOPT_URL] = sprintf($url, ‘%d');
    curl_multi_add_handle($mh, $ch);
    }
    H T T P/ 2 : M U LT I P L E X E D
    $mh = curl_multi_init();
    

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41. $url = 'https://http2.akamai.com/demo/tile-%d.png';

    for ($i = 0; $i <= $numRequests; $i++) {
    $handles[] = $ch = curl_init();
    $conf[CURLOPT_URL] = sprintf($url, ‘%d');
    curl_multi_add_handle($mh, $ch);
    }
    H T T P/ 2 : M U LT I P L E X E D
    curl_multi_setopt($mh,

    CURLMOPT_PIPELINING,
    CURLPIPE_MULTIPLEX
    );
    $mh = curl_multi_init();
    

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42. H T T P/ 2 : M U LT I P L E X E D ( CO N T. )
    do {
    $exec = curl_multi_exec($mh, $running);
    } while ($exec == CURLM_CALL_MULTI_PERFORM);
    while ($running && $exec == CURLM_OK) {
    $ready = curl_multi_select($mh);
    if ($ready != -1) {
    do {
    $exec = curl_multi_exec($mh, $running);

    } while ($exec == CURLM_CALL_MULTI_PERFORM);
    }
    }
    

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43. 2 . 1 4 

    s e co n d s
    CC-BY: motoracereports
    

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44. I N S U M M A R Y
    

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45. N O M O R E H AC K S !
    

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46. H U G E P E R FO R M A N C E W I N S
    

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47. 6 0 % + M A R K E T S H A R E
    

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48. H T T P / 2 I S A W E S O M E !
    CC-BY-SA: Steven Gerner
    

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49. F E E D B A C K & Q U E S T I O N S
    Twitter:
    Email:
    Slides:
    @dshafik
    dshafik@akamai.com
    http://daveyshafik.com/slides
    

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