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Twitter: Engineering for Real-Time (Stanford ACM 2011)
- 2. @raffi Raffi Krikorian Giving a talk at @StanfordACM. Want to know about engineering for real-time? 1 min ago via Twitter for iPhone Favorite Retweet Reply
- 6. @JordnJnkieJuice ✔Finally✈MF✈Famous✔ EARTHQUAKE !!!!! 1 min ago via Echofon Favorite Retweet Reply
- 8. @usgs
- 14. 300 miles to NYC
- 21. @remedyoakland Remedy Strawberry scones and rhubarb turnovers in the house! 14 Apr via Facebook Favorite Retweet Reply
- 23. What’s a Tweet?
- 24. 48 characters +1 for the bird What’s a Tweet? It’s a short message that's sent through 140 characters max
- 25. 1 tweet
- 26. sizeof(1 tweet)
- 27. sizeof(1 tweet)= 140 characters
- 28. sizeof(1 tweet)= 140 characters
- 29. sizeof(1 tweet)= 140 characters
- 30. sizeof(1 tweet)= 140 characters
- 31. sizeof(1 tweet)≈ 200 bytes
- 32. sizeof(1 tweet)≈ 200 bytes
- 33. = 140 characters sizeof(1 tweet) ≈ 200 bytes
- 34. = 140 characters sizeof(1 tweet) ≈ 200 bytes
- 35. @Astro_Soichi Soichi Noguchi http://twitpic.com/17dfqb - 8 Mar 10 via TwitPic Favorite Retweet Reply
- 36. @Astro_Soichi Soichi Noguchi http://twitpic.com/17dfqb - 8 Mar 10 via TwitPic Favorite Retweet Reply
- 39. About 230,000,000 Tweets a day
- 40. 2.3E6 tweets day
- 41. 2.3E6 tweets 2600 tweets ≈ day second
- 42. 2.3E6 tweets 2600 tweets ≈ day second
- 43. 2.3E6 tweets 2600 tweets ≈ day second
- 44. 2.3E6 tweets 2600 tweets ≈ day second
- 45. 2.3E6 tweets 2600 tweets ≈ day second steady state
- 47. 7,196 TPS
- 49. Tokyo 6,600 TPS
- 51. 8,800 TPS
- 53. status/update
- 54. status/update
- 55. status/update
- 56. status/update HTTP 200 OK {
- 57. status/update HTTP 200 OK {
- 58. status/update HTTP 200 OK
- 59. status/update HTTP 200 OK
- 60. st
- 61. s
- 63. s
- 64. s
- 65. s
- 66. s
- 67. s Rockdove
- 68. s
- 69. s
- 72. t.co
- 75. {
- 76. {
- 77. Storage {
- 78. {
- 79. status/update HTTP 200 OK {
- 80. status/update HTTP 200 OK {
- 81. status/update HTTP 200 OK {
- 82. HTTP 200 OK { … "text":"Tweet!" … }
- 83. HTTP 200 OK { … "text":"Tweet!" … }
- 84. HTTP 200 OK { … "text":"Tweet!" … }
- 85. status/update HTTP 200 OK { … "text":"Tweet!" … }
- 86. status/update HTTP 200 OK { … "text":"Tweet!" … }
- 87. status/update HTTP 200 OK { … "text":"Tweet!" … }
- 89. status/update Fanout HTTP 200 OK { … "text":"Tweet!" … }
- 90. status/update Fanout HTTP 200 OK { … "text":"Tweet!" … }
- 91. te Fanout K
- 92. te Fanout K
- 93. te Fanout K
- 94. te Flock Fanout K
- 95. te Fanout K
- 96. te Fanout K
- 97. status/update Fanout HTTP 200 OK { … "text":"Tweet!" … }
- 98. status/update Fanout HTTP 200 OK { … "text":"Tweet!" … }
- 101. followed by following
- 104. @ladygaga mother mons†er 13.2 million followers @justinbieber Justin Bieber 12.4 million followers @BarackObama 44th President of the United States 9.9 million followers @raffi me! 0.01 million followers
- 105. @ladygaga mother mons†er 13.2 million followers @raffi me! 0.01 million followers
- 106. @ladygaga mother mons†er 13.2 million followers @raffi me! 0.01 million followers
- 107. @ladygaga mother mons†er 13.2 million followers @raffi me! 0.01 million followers 10000x more followers than me
- 108. @ladygaga mother mons†er 13.2 million followers @raffi me! 0.01 million followers scaling for 107
- 110. Has... ⇢ huge number of concurrent connections ⇢ lots of I/O ⇢ few persistent objects
- 112. Gosai Kiji Phasianus versicolor also known as Japanese Pheasant is a bird of the lowlands. Closely related to the Common Pheasant, the cock is distinguished by dark green plumage on breast and mantle. The male has an iridescent violet neck, red bare facial skin and purplish green tail. The female is smaller than male, and has a dull brown plumage with dark spots.
- 113. Gosai Kiji Phasianus versicolor also known as Japanese Pheasant is a bird of the lowlands. Closely related to the Common Pheasant, the cock is distinguished by dark green plumage on breast and mantle. The male has an iridescent violet neck, red bare facial skin and purplish green tail. The female is smaller than male, and has a dull brown plumage with dark spots.
- 116. needS... ⇢ ability to handle server workloads
- 117. needS... ⇢ ability to handle server workloads ⇢ flexibility in language
- 118. needS... ⇢ ability to handle server workloads ⇢ flexibility in language
- 119. needS... ⇢ ability to handle server workloads ⇢ flexibility in language
- 120. needS... ⇢ ability to handle server workloads ⇢ flexibility in language
- 121. needS... ⇢ ability to handle server workloads ⇢ flexibility in language
- 122. needS... ⇢ ability to handle server workloads ⇢ flexibility in language ⇢ a real concurrency model
- 123. finagle |fəˈnāgəl| needS... verb [ trans. ] informal obtain (something) by devious or dishonest means : Ted attended all the football games he could finagle tickets for. • [ intrans. ] act in a devious or dishonest manner : they wrangled and finagled over the fine points. ⇢ ability to handle server workloads DERIVATIVES ⇢ flexibility in language finagler |fəˈnāg(ə)lər| noun ⇢ a real concurrency model ORIGIN 1920s (originally U.S.): from dialect fainaigue [cheat] ; perhaps from Old French fornier ‘deny.’
- 124. finagle |fəˈnāgəl| needS... verb [ trans. ] informal obtain (something) by devious or dishonest means : Ted attended all the football games he could finagle tickets for. • [ intrans. ] act in a devious or dishonest manner : they wrangled and finagled over the fine points. ⇢ ability to handle server workloads DERIVATIVES ⇢ flexibility in language finagler |fəˈnāg(ə)lər| noun ⇢ a real concurrency model ORIGIN 1920s (originally U.S.): from dialect fainaigue [cheat] ; perhaps from Old French fornier ‘deny.’
- 125. finagle |fəˈnāgəl| needS... verb [ trans. ] informal obtain (something) by devious or dishonest means : Ted attended all the football games he could finagle tickets for. • [ intrans. ] act in a devious or dishonest manner : they wrangled and finagled over the fine points. ⇢ ability to handle server workloads DERIVATIVES ⇢ flexibility in language finagler |fəˈnāg(ə)lər| noun ⇢ a real concurrency model ORIGIN 1920s (originally U.S.): from dialect fainaigue [cheat] ; perhaps from Old French fornier ‘deny.’
- 126. finagle |fəˈnāgəl| verb [ trans. ] informal needS... obtain (something) by devious or dishonest means : Ted attended all the football games he could finagle tickets for. • [ intrans. ] act in a devious or dishonest manner : they wrangled and finagled over the fine points. ⇢ ability to handle server workloads DERIVATIVES ⇢ flexibility in language finagler |fəˈnāg(ə)lər| noun ⇢ a real concurrency model ORIGIN 1920s (originally U.S.): from dialect fainaigue [cheat] ; perhaps from Old French fornier ‘deny.’
- 129. ’S Infrastructure trades in... ⇢ RAM & CPU ⇢ bandwidth ⇢ machine density
- 133. Switching to doesn’t imply that is a mistake
- 136. is a Real-Time Event-driven & Problem
- 138. What happens in the World happens on
- 140. Follow me at Questions? twitter.com/raffi