======================================================== FCFS ======================================================== [Time=0] Adding request 53. Head @ 0. Current target = 53 Pending requests are now [53] [Time=15] Adding request 98. Head @ 15. Current target = 53 Pending requests are now [53, 98] [Time=30] Adding request 183. Head @ 30. Current target = 53 Pending requests are now [53, 98, 183] [Time=45] Adding request 37. Head @ 45. Current target = 53 Pending requests are now [53, 98, 183, 37] [Time= 53] >>>>SERVICING track 53. [Time=60] Adding request 122. Head @ 60. Current target = 98 Pending requests are now [98, 183, 37, 122] [Time=75] Adding request 14. Head @ 75. Current target = 98 Pending requests are now [98, 183, 37, 122, 14] [Time=90] Adding request 124. Head @ 90. Current target = 98 Pending requests are now [98, 183, 37, 122, 14, 124] [Time= 98] >>>>SERVICING track 98. [Time=105] Adding request 65. Head @ 105. Current target = 183 Pending requests are now [183, 37, 122, 14, 124, 65] [Time=120] Adding request 67. Head @ 120. Current target = 183 Pending requests are now [183, 37, 122, 14, 124, 65, 67] [Time=135] Adding request 50. Head @ 135. Current target = 183 Pending requests are now [183, 37, 122, 14, 124, 65, 67, 50] [Time=150] Adding request 96. Head @ 150. Current target = 183 Pending requests are now [183, 37, 122, 14, 124, 65, 67, 50, 96] [Time=165] Adding request 181. Head @ 165. Current target = 183 Pending requests are now [183, 37, 122, 14, 124, 65, 67, 50, 96, 181] [Time=180] Adding request 35. Head @ 180. Current target = 183 Pending requests are now [183, 37, 122, 14, 124, 65, 67, 50, 96, 181, 35] [Time= 183] >>>>SERVICING track 183. [Time=195] Adding request 121. Head @ 171. Current target = 37 Pending requests are now [37, 122, 14, 124, 65, 67, 50, 96, 181, 35, 121] [Time=210] Adding request 17. Head @ 156. Current target = 37 Pending requests are now [37, 122, 14, 124, 65, 67, 50, 96, 181, 35, 121, 17] [Time=225] Adding request 129. Head @ 141. Current target = 37 Pending requests are now [37, 122, 14, 124, 65, 67, 50, 96, 181, 35, 121, 17, 129] [Time=240] Adding request 28. Head @ 126. Current target = 37 Pending requests are now [37, 122, 14, 124, 65, 67, 50, 96, 181, 35, 121, 17, 129, 28] [Time=255] Adding request 73. Head @ 111. Current target = 37 Pending requests are now [37, 122, 14, 124, 65, 67, 50, 96, 181, 35, 121, 17, 129, 28, 73] [Time= 329] >>>>SERVICING track 37. [Time= 414] >>>>SERVICING track 122. [Time= 522] >>>>SERVICING track 14. [Time= 632] >>>>SERVICING track 124. [Time= 691] >>>>SERVICING track 65. [Time= 693] >>>>SERVICING track 67. [Time= 710] >>>>SERVICING track 50. [Time= 756] >>>>SERVICING track 96. [Time= 841] >>>>SERVICING track 181. [Time= 987] >>>>SERVICING track 35. [Time= 1073] >>>>SERVICING track 121. [Time= 1177] >>>>SERVICING track 17. [Time= 1289] >>>>SERVICING track 129. [Time= 1390] >>>>SERVICING track 28. [Time= 1435] >>>>SERVICING track 73. FCFS Total Run-Time: 1435 Servicing Sequence was: [0, 53, 98, 183, 37, 122, 14, 124, 65, 67, 50, 96, 181, 35, 121, 17, 129, 28, 73] ======================================================== LOOK ======================================================== [Time=0] Adding request 53. Head @ 0. Current target = 53 Pending requests are now [53] [Time=15] Adding request 98. Head @ 15. Current target = 53 Pending requests are now [53, 98] [Time=30] Adding request 183. Head @ 30. Current target = 53 Pending requests are now [53, 98, 183] [Time=45] Adding request 37. Head @ 45. Current target = 53 Pending requests are now [53, 98, 183, 37] [Time= 53] >>>>SERVICING track 53. [Time=60] Adding request 122. Head @ 60. Current target = 98 Pending requests are now [98, 183, 37, 122] [Time=75] Adding request 14. Head @ 75. Current target = 98 Pending requests are now [98, 183, 37, 122, 14] [Time=90] Adding request 124. Head @ 90. Current target = 98 Pending requests are now [98, 183, 37, 122, 14, 124] [Time= 98] >>>>SERVICING track 98. [Time=105] Adding request 65. Head @ 105. Current target = 122 Pending requests are now [183, 37, 122, 14, 124, 65] [Time=120] Adding request 67. Head @ 120. Current target = 122 Pending requests are now [183, 37, 122, 14, 124, 65, 67] [Time= 122] >>>>SERVICING track 122. [Time= 124] >>>>SERVICING track 124. [Time=135] Adding request 50. Head @ 135. Current target = 183 Pending requests are now [183, 37, 14, 65, 67, 50] [Time=150] Adding request 96. Head @ 150. Current target = 183 Pending requests are now [183, 37, 14, 65, 67, 50, 96] [Time=165] Adding request 181. Head @ 165. Current target = 183 Pending requests are now [183, 37, 14, 65, 67, 50, 96, 181] [Time=180] Adding request 35. Head @ 180. Current target = 183 Pending requests are now [183, 37, 14, 65, 67, 50, 96, 181, 35] [Time= 183] >>>>SERVICING track 183. [Time= 185] >>>>SERVICING track 181. [Time=195] Adding request 121. Head @ 171. Current target = 96 Pending requests are now [37, 14, 65, 67, 50, 96, 35, 121] [Time=210] Adding request 17. Head @ 156. Current target = 96 Pending requests are now [37, 14, 65, 67, 50, 96, 35, 121, 17] [Time=225] Adding request 129. Head @ 141. Current target = 96 Pending requests are now [37, 14, 65, 67, 50, 96, 35, 121, 17, 129] [Time=240] Adding request 28. Head @ 126. Current target = 96 Pending requests are now [37, 14, 65, 67, 50, 96, 35, 121, 17, 129, 28] [Time=255] Adding request 73. Head @ 111. Current target = 96 Pending requests are now [37, 14, 65, 67, 50, 96, 35, 121, 17, 129, 28, 73] [Time= 270] >>>>SERVICING track 96. [Time= 293] >>>>SERVICING track 73. [Time= 299] >>>>SERVICING track 67. [Time= 301] >>>>SERVICING track 65. [Time= 316] >>>>SERVICING track 50. [Time= 329] >>>>SERVICING track 37. [Time= 331] >>>>SERVICING track 35. [Time= 338] >>>>SERVICING track 28. [Time= 349] >>>>SERVICING track 17. [Time= 352] >>>>SERVICING track 14. [Time= 459] >>>>SERVICING track 121. [Time= 467] >>>>SERVICING track 129. LOOK Total Run-Time: 467 Servicing Sequence was: [0, 53, 98, 122, 124, 183, 181, 96, 73, 67, 65, 50, 37, 35, 28, 17, 14, 121, 129] ======================================================== SSTF ======================================================== [Time=0] Adding request 53. Head @ 0. Current target = 53 Pending requests are now [53] [Time=15] Adding request 98. Head @ 15. Current target = 53 Pending requests are now [53, 98] [Time=30] Adding request 183. Head @ 30. Current target = 53 Pending requests are now [53, 98, 183] [Time=45] Adding request 37. Head @ 45. Current target = 53 Pending requests are now [53, 98, 183, 37] [Time= 53] >>>>SERVICING track 53. [Time=60] Adding request 122. Head @ 46. Current target = 37 Pending requests are now [98, 183, 37, 122] [Time= 69] >>>>SERVICING track 37. [Time=75] Adding request 14. Head @ 43. Current target = 98 Pending requests are now [98, 183, 122, 14] [Time=90] Adding request 124. Head @ 58. Current target = 98 Pending requests are now [98, 183, 122, 14, 124] [Time=105] Adding request 65. Head @ 73. Current target = 98 Pending requests are now [98, 183, 122, 14, 124, 65] [Time=120] Adding request 67. Head @ 88. Current target = 98 Pending requests are now [98, 183, 122, 14, 124, 65, 67] [Time= 130] >>>>SERVICING track 98. [Time=135] Adding request 50. Head @ 103. Current target = 122 Pending requests are now [183, 122, 14, 124, 65, 67, 50] [Time=150] Adding request 96. Head @ 118. Current target = 122 Pending requests are now [183, 122, 14, 124, 65, 67, 50, 96] [Time= 154] >>>>SERVICING track 122. [Time= 156] >>>>SERVICING track 124. [Time=165] Adding request 181. Head @ 115. Current target = 96 Pending requests are now [183, 14, 65, 67, 50, 96, 181] [Time=180] Adding request 35. Head @ 100. Current target = 96 Pending requests are now [183, 14, 65, 67, 50, 96, 181, 35] [Time= 184] >>>>SERVICING track 96. [Time=195] Adding request 121. Head @ 85. Current target = 67 Pending requests are now [183, 14, 65, 67, 50, 181, 35, 121] [Time=210] Adding request 17. Head @ 70. Current target = 67 Pending requests are now [183, 14, 65, 67, 50, 181, 35, 121, 17] [Time= 213] >>>>SERVICING track 67. [Time= 215] >>>>SERVICING track 65. [Time=225] Adding request 129. Head @ 55. Current target = 50 Pending requests are now [183, 14, 50, 181, 35, 121, 17, 129] [Time= 230] >>>>SERVICING track 50. [Time=240] Adding request 28. Head @ 40. Current target = 35 Pending requests are now [183, 14, 181, 35, 121, 17, 129, 28] [Time= 245] >>>>SERVICING track 35. [Time= 252] >>>>SERVICING track 28. [Time=255] Adding request 73. Head @ 25. Current target = 17 Pending requests are now [183, 14, 181, 121, 17, 129, 73] [Time= 263] >>>>SERVICING track 17. [Time= 266] >>>>SERVICING track 14. [Time= 325] >>>>SERVICING track 73. [Time= 373] >>>>SERVICING track 121. [Time= 381] >>>>SERVICING track 129. [Time= 433] >>>>SERVICING track 181. [Time= 435] >>>>SERVICING track 183. SSTF Total Run-Time: 435 Servicing Sequence was: [0, 53, 37, 98, 122, 124, 96, 67, 65, 50, 35, 28, 17, 14, 73, 121, 129, 181, 183] Scheduler TotalTime TrackServiceSequence _________________________________________ FCFS 1435 [0, 53, 98, 183, 37, 122, 14, 124, 65, 67, 50, 96, 181, 35, 121, 17, 129, 28, 73] LOOK 467 [0, 53, 98, 122, 124, 183, 181, 96, 73, 67, 65, 50, 37, 35, 28, 17, 14, 121, 129] SSTF 435 [0, 53, 37, 98, 122, 124, 96, 67, 65, 50, 35, 28, 17, 14, 73, 121, 129, 181, 183]