TurboPress: The High Performance Guide to WordPress - Jeff Waugh - WordCamp Sydney 2012
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Jeff Waugh coaches WordCamp Sydney 2012 on turboboosting your WordPress site, and setting it up for Higher Performance #wcsyd
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TurboPress: The High Performance Guide to WordPress - Jeff Waugh - WordCamp Sydney 2012
- 1. TurboPress The High Performance Guide to WordPress
- 2. Let’s start with some theory.
- 4. Browser sho velling shovelling Web Server PHP shovelling WordPress shovelling MySQL
- 6. 1. DNS “ bethesignal.org ” Browser Router ISP DNS “ 70 . 85 . 31 . 216 “ DNS Host
- 7. 1. DNS “ bethesignal.org ” Browser 10 ms Router 160 ms ISP DNS “ 70 . 85 . 31 . 216 “ 210 ms DNS Host
- 8. 1. DNS “ bethesignal.org ” Browser 10 ms Router 160 ms ISP DNS “ 70 . 85 . 31 . 216 “ 210 ms DNS Host Google’s web performance team calculate the average DNS query takes 130ms!
- 9. 2. HTTP “ bethesignal.org “ Browser 10 ms Router 160 ms ISP DNS “ 70 . 85 . 31 . 216 “ 210 ms DNS Host 70 . 85 . 31 . 216 : 80 Web Ser ver
- 10. 2. HTTP “ bethesignal.org “ Browser 10 ms Router 160 ms ISP DNS “ 70 . 85 . 31 . 216 “ 210 ms 220 ms DNS Host 70 . 85 . 31 . 216 : 80 Web Ser ver
- 11. 3. PHP “ bethesignal.org “ Browser 10 ms Router 160 ms ISP DNS “ 70 . 85 . 31 . 216 “ 210 ms 220 ms DNS Host 70 . 85 . 31 . 216 : 80 Web Ser ver PHP
- 12. 3. PHP “ bethesignal.org “ Browser 10 ms Router 160 ms ISP DNS “ 70 . 85 . 31 . 216 “ 210 ms 220 ms DNS Host 70 . 85 . 31 . 216 : 80 650 ms Web Ser ver PHP
- 13. 4. MySQL “ bethesignal.org “ Browser 10 ms Router 160 ms ISP DNS “ 70 . 85 . 31 . 216 “ 210 ms 220 ms DNS Host 70 . 85 . 31 . 216 : 80 Web Ser ver PHP MySQL
- 14. 5. Back to the browser!
- 15. Browser sho velling shovelling Web Server PHP shovelling WordPress shovelling MySQL
- 17. GET / HTTP/1.1 Host: bethesignal.org Connection: keep-alive User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_4) AppleWebKit/536.11 (KHTML, like Gecko) Chrome/20.0.1132.57 Safari/536.11 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Encoding: gzip,deflate,sdch Accept-Language: en-AU,en;q=0.8,en-US;q=0.6 Accept-Charset: UTF-8,*;q=0.5 Cookie: wordpress_logged_in_...=jdub... If-Modified-Since: Thu, 12 Jul 2012 21:27:06 GMT HTTP/1.1 200 OK Server: nginx/1.2.1 Date: Fri, 20 Jul 2012 23:48:04 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Vary: Accept-Encoding Vary: Cookie X-Pingback: http://bethesignal.org/xmlrpc.php Expires: Wed, 11 Jan 1984 05:00:00 GMT Last-Modified: Fri, 20 Jul 2012 23:48:03 GMT Cache-Control: no-cache, must-revalidate, max-age=0 Pragma: no-cache Content-Encoding: gzip
- 18. 10:32:16.084565 * About to connect() to bethesignal.org port 80 (#0) 10:32:16.084768 * Trying 70.85.31.216... TCP_NODELAY set 10:32:16.283247 * connected 10:32:16.283376 * Connected to bethesignal.org (70.85.31.216) port 80 (#0) 10:32:16.283528 > GET / HTTP/1.1 10:32:16.283528 > User-Agent: curl/7.21.4 (universal-apple-darwin11.0) libcurl/... 10:32:16.283528 > Host: bethesignal.org 10:32:16.283528 > Accept: */* 10:32:16.283528 > Accept-Encoding: deflate, gzip 10:32:16.283528 > Cookie: wordpress_logged_in_...=jdub... 10:32:16.283528 > 10:32:16.995103 < HTTP/1.1 200 OK 10:32:16.995216 < Server: nginx/1.2.1 10:32:16.995240 < Date: Sat, 21 Jul 2012 00:32:16 GMT 10:32:16.995295 < Content-Type: text/html; charset=UTF-8 10:32:16.995374 < Transfer-Encoding: chunked 10:32:16.995412 < Connection: keep-alive 10:32:16.995447 < Vary: Accept-Encoding 10:32:16.995482 < Vary: Cookie 10:32:16.995515 < X-Pingback: http://bethesignal.org/xmlrpc.php 10:32:16.995548 < Expires: Wed, 11 Jan 1984 05:00:00 GMT 10:32:16.995601 < Last-Modified: Sat, 21 Jul 2012 00:32:16 GMT 10:32:16.995642 < Cache-Control: no-cache, must-revalidate, max-age=0 10:32:16.995680 < Pragma: no-cache 10:32:16.995717 < Content-Encoding: gzip 10:32:16.995759 < 10:32:16.995794 { [data not shown] 10:32:17.393072 * Connection #0 to host bethesignal.org left intact 10:32:17.393170 * Closing connection #0
- 19. Now you have some <html> …
- 20. GET /wp-content/uploads/2011/04/strange-days.jpg HTTP/1.1 Host: bethesignal.org Connection: keep-alive Cache-Control: no-cache Pragma: no-cache User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_4) AppleWebKit/536.11 (KHTML, like Gecko) Chrome/20.0.1132.57 Safari/536.11 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Referer: http://bethesignal.org/ Accept-Encoding: gzip,deflate,sdch Accept-Language: en-AU,en;q=0.8,en-US;q=0.6 Accept-Charset: UTF-8,*;q=0.5 Cookie: wordpress_logged_in_...=jdub... HTTP/1.1 200 OK Server: nginx/1.2.1 Date: Fri, 20 Jul 2012 23:50:50 GMT Content-Type: image/jpeg Content-Length: 180112 Last-Modified: Fri, 08 Apr 2011 14:25:27 GMT Connection: keep-alive Expires: Wed, 19 Jul 2017 23:50:50 GMT Cache-Control: max-age=157680000 Accept-Ranges: bytes
- 21. 10:34:05.051972 * About to connect() to bethesignal.org port 80 (#0) 10:34:05.052162 * Trying 70.85.31.216... TCP_NODELAY set 10:34:05.251898 * connected 10:34:05.251989 * Connected to bethesignal.org (70.85.31.216) port 80 (#0) 10:34:05.252123 > GET /wp-content/uploads/2011/04/strange-days.jpg HTTP/1.1 10:34:05.252123 > User-Agent: curl/7.21.4 (universal-apple-darwin11.0) libcurl/... 10:34:05.252123 > Host: bethesignal.org 10:34:05.252123 > Accept: */* 10:34:05.252123 > Accept-Encoding: deflate, gzip 10:34:05.252123 > Cookie: wordpress_logged_in_...=jdub... 10:34:05.252123 > 10:34:05.448816 < HTTP/1.1 200 OK 10:34:05.448981 < Server: nginx/1.2.1 10:34:05.449045 < Date: Sat, 21 Jul 2012 00:34:05 GMT 10:34:05.449091 < Content-Type: image/jpeg 10:34:05.449131 < Content-Length: 180112 10:34:05.449170 < Last-Modified: Fri, 08 Apr 2011 14:25:27 GMT 10:34:05.449211 < Connection: keep-alive 10:34:05.449250 < Expires: Thu, 20 Jul 2017 00:34:05 GMT 10:34:05.449290 < Cache-Control: max-age=157680000 10:34:05.449331 < Accept-Ranges: bytes 10:34:05.449382 < 10:34:05.449440 { [data not shown] 10:34:06.443613 * Connection #0 to host bethesignal.org left intact 10:34:06.443714 * Closing connection #0
- 22. webpagetest.org Sydney ADSL
- 23. webpagetest.org Los Angeles Fibre
- 24. webpagetest.org Los Angeles Fibre
- 25. The Network
- 26. Host DNS and web services close to your primary audience.
- 27. (This is one reason why global web sites use CDNs, particularly for static content.)
- 28. The Web Server
- 29. shovelling Apache mpm_prefork sho velling mod_php shovelling *.php ...
- 30. and
- 31. back
- 32. again!
- 33. shovelling Apache mpm_prefork sho velling mod_php shovelling *.png ...
- 34. and
- 35. back
- 36. again!
- 37. 1 process per request 10-100MB per process (or more)
- 38. Right now, web servers around the planet are wasting gobs of memory serving static files.
- 39. Try a different process model.
- 41. MASSIVE PHP FAIL
- 42. nginx
- 43. 1 process per core request overhead measured in kilobytes
- 44. shovelling nginx php-fastcgi sho velling [worker] shovelling *.php ...
- 45. and
- 46. back
- 47. again!
- 48. nginx shovelling *.png ...
- 49. and
- 50. back
- 51. again!
- 52. Apache and nginx Netcraft Survey to May 2012
- 53. PHP
- 54. “There are only two hard things in Computing Science: cache invalidation and naming things.” - Phil Karlton
- 55. It’s turtles all the way down.
- 56. Opcode caching Don’t let PHP do the same work twice.
- 57. APC
- 58. APC everywhere!
- 59. WordPress
- 60. Object caching Don’t talk to the database if you don’t have to.
- 62. Output or page caching Avoid PHP entirely…?
- 63. WP Super Cache
- 64. nginx shovelling *.png ...
- 65. and
- 66. back
- 67. again!
- 68. Batcache
- 69. Reverse proxy cache, such as nginx, Varnish
- 70. MySQL
- 71. Query (or results) cache Don’t let MySQL do the same work twice.
- 72. Schema, index and behavioural optimisation Don’t tell MySQL do stupid work in the first place.
- 73. Browser
- 74. Raw performance vs. Perception of performance
- 75. Measure twice, cut once.
- 79. “totes
- 80. insan
- 81. hosting
- 82. guys!” -
- 83. Peter