[理工] [0S][計組][核對]交大103 資訊連招題組

看板Grad-ProbAsk作者h04mp6286 (H28)時間9年前 (2015/01/02 16:08)推噓2(2推 0噓 5→)

留言7則, 4人參與討論串1/2 (看更多)

交大真的好少人PO啊 A:e d c P1:busy(2) // 1~3 | P2:wait(S) // 1~5 : S=1 當到5的時候 S=2 wait(S) // 3 : S=1 | busy(2) // 5~7 busy(2) // 3~5 | signal(S) // 7 : S=2->... signal(S) // 5 : S=1->2 | busy(1) // 7~8 busy(1) // 6 | | P1 turnaround = 6 | P2 turnaround = 8 average = (6+8)/2 = 7 B:d c 這題超不確定的 (2+64)*1024/512 = 132 所以17題我寫d (2+64)*1024/(512+256) = 88 所以18題我寫c C:a e b d SSTF:120-134-103-97-88-52-190 A = 14 + 82 + 138 = 234 LOOK:120-97-88-52-103-134-190 B = 68 + 138 = 206 SCAN:130-97-88-52-0-103-134-190 C = 120 + 190 = 310 S = min(A,B)+C = 206+310 = 516 = 4*5^3 + 0*5^2 + 3*5^1 + 1 D:b a d <-這個也太bad了吧 Cache sizes = 64KB = 2^16 bytes = 2^14 words = 2^12 blocks = 4K blocks block sizes = 4 words = 2^4 bytes sizes of tag field = 32-12-4 = 16 OxDF105670, 0xDF10567C, Ox23A033A0, 0x23A034A0, 0xDF105678 ﹋﹋﹋﹋﹋﹋﹋﹋﹋﹋ E:c b d P0 = 2*4 + 3*4 + 5*9 + 1*7 = 72 P1 = 2*8 + 3*4 + 5*6 + 1*8 = 66 P0*50% = 36 = 2*4 + 3*4 + cp*9 + 1*7 cp = 1 請板上高人大大們跟我對一下答案,謝謝之後應該還會在上來對下4大名校的答案 -- ※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 1.173.187.244 ※ 文章網址: http://www.ptt.cc/bbs/Grad-ProbAsk/M.1420186107.A.A4B.html ※ 編輯: h04mp6286 (1.173.187.244), 01/02/2015 16:10:51

→

JacobSyu

01/02 17:43, , 1^F

01/02 17:43, 1^F

推

qoojordon

01/02 21:09, , 2^F

01/02 21:09, 2^F

→

qoojordon

01/02 21:10, , 3^F

01/02 21:10, 3^F