The Four Principles of Atlassian Performance Tuning

1. The Four Principles of Atlassian Performance Tuning DAN HARDIKER | CTO | ADAPTAVIST | @DHARDIKER / @ADAPTAVIST

3. Who do I think you are?

4. What am I covering?

5. What am I covering?

6. Know your system PRINCIPLE #1

7. What is performance? Know your system

10. So it’s slow … http://en.wikipedia.org/wiki/File:Snail-WA_edit02.jpg

11. What affects performance? Know your system

17. Usage Profiles Know your system

18. Apache Access Logs - [12/May/2017:09:10:11 +0000] "GET /browse/AVSTSUP-12345 HTTP/1.1" 200 27117 "https://jira.adaptavist.com/secure/ Dashboard.jspa" "Mozilla/8.0 (Macintosh; Intel Mac OS X 12_13_1) AppleWebKit/123.45 (KHTML, like Gecko) Chrome/99.0.1234.321 Safari/111.22" % jira.adaptavist.com:443 (jira.adaptavist.com) 10.10.0.1 10.2.12.5 " 10.2.12.5 " "-" "-" "awignall" "15ogjkm" 1108 28811 1272603 1 "-" "-"

27. Performance Objectives Know your system

28. http://www.kia.com/uk/new-cars/sorento/ http://www.forceindiaf1.com/

29. http://www.google.co.uk

30. Performance Budget Usage

31. 2s Average user experience

32. http://fortune.com/att-global-network-operations-center/

33. Technical Architecture Know your system

34. http://decoy.tk/java-logo/

35. https://www.microsoft.com/ https://en.wikipedia.org/wiki/Tux

36. http://www.zdnet.com/article/red-hat-releases-new-flagship-linux-operating-system/

39. http://httpd.apache.org/

40. Apache CLF Extended (and extended some more) # This is the standard Apache CLF format # followed by a literal % and then additional fields as required LogFormat "%u %t "%r" %>s %b "%{Referer}i" "%{User-Agent}i" %% %v:%p (%V) %A %a "%{X-Forwarded-For}i" "%{X-Forwarded-Proto}i" "%{X-Forwarded-Port}i" "%{X-AUSERNAME}o" "%{X-ASESSIONID}o" %I %O %D %T" proxy

41. Logging in JSON - Apache LogFormat "{ "@timestamp": "%{%Y-%m-%dT%H:%M:%S}t.% {msec_frac}t%{%z}t", "@message": "%m %H %U%q %s", "@fields": { "client": "%a", "duration_usec": %D, "status": %s, "request": "%U%q", "method": "%m", "protocol": "%H", "referrer": "%{Referer}i", "user-agent": "%{User-agent} i" } }" adaptavist_json

42. http://photos.forteantimes.com/images/front_picture_library_UK/dir_2/fortean_times_1479_7.jpg

43. https://geeksilver.files.wordpress.com/2010/07/memcompress-01.png

44. 8,000 File Descriptors

45. http://decoy.tk/java-logo/

46. http://www.clker.com/

47. Garbage collection JVM settings -XX:+PrintGC -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCTimeStamps -XX:+PrintTenuringDistribution -XX:+PrintGCCause -XX:+UseGCLogFileRotation --Xloggc:$APP_HOME/logs/gc-$(date "+%m%d%H%M%Y.%S").log

49. http://tinyurl.com/gctrashtalk

50. X Full GCŸ Minor GC

51. X Full GCŸ Minor GC

52. http://www.itp.net/591570-virtualisation-innovation

53. http://quickmeme.com/

54. https://www.linkedin.com/pulse/get-up-speed-vmware-vsphere-v6-harun-rashid

56. http://tinyurl.com/atlassiansupporttools

59. Go with the flow PRINCIPLE #2

60. https://openclipart.org/image/2400px/svg_to_png/245779/1459857238.png

62. Chrome Developer Tools

63. Browser

64. Terminal

65. Terminal

66. 39 Requests per second 17 Average request time

67. Don’t bottle it up PRINCIPLE #3

68. Capacity The size of the resource Throughput The rate of consumption and release Queue The number of things waiting in line

72. CPU

73. Capacity Up to 100% utilisation Throughput The speed of the processors Queue The number of runnable processes

74. Capacity Up to 100% utilisation Throughput The speed of the processors Queue The number of runnable processes

75. Throughput The speed of the processors Queue The number of runnable processes Capacity Up to 100% utilisation

76. Database Connection Pool

77. DATABASE CONNECTION POOL 0 5 10 15 20 25 30 35 40 Thread Waiting Max Pool Size Available Checked Out Used Recently In Use

80. http://photos.forteantimes.com/images/front_picture_library_UK/dir_2/fortean_times_1479_7.jpg

81. Metrics Be data aware

82. http://fortune.com/att-global-network-operations-center/

83. If I had an hour to solve a problem, I’d spend 55 minutes thinking about the problem. ALBERT EINSTEIN

85. Follow the rabbit hole PRINCIPLE #4

86. Step by step Follow the rabbit hole

87. http://www.amazon.co.uk

88. http://www.amazon.co.uk

89. Only optimise poor bottlenecks. DAN HARDIKER

90. Only optimise poor bottlenecks. Start with the worst offender. DAN HARDIKER

91. https://alssl.askleomedia.com/wp-content/uploads/2009/01/cpu.jpg

94. No

95. Yes No

96. Operating System Yes No

100. Operating System Yes JVM No

101. Operating System Yes JVM No Application

102. Simplified dashboard Follow the rabbit hole

103. https://blog.appdynamics.com/product/too-big-to-scale-data-visualizations-at-web-scale/

104. Go Away

106. https://www.itjobswatch.co.uk/charts/salary-trend.aspx?s=tensorflow&l=uk

108. In Summary Understand your usage Define your performance objectives Build a mature technical architecture Monitor your pipeline & bottlenecks Be methodical in your RCAs Have better operational dashboards

114. DAN HARDIKER | CTO | ADAPTAVIST | @DHARDIKER / @ADAPTAVIST Thank you!

The Four Principles of Atlassian Performance Tuning

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