PPT-DOS FAT CS 140 Lecture Notes: Disk Scheduling

Author : riley | Published Date : 2023-11-12

Slide 1 free File Allocation Table A 6 B 1 6 4 3 0 1 File A File B Directory 5 2 end 2 3 end 3 4 5 end 4 6 7 free 1 2 Disk Scheduling CS 140 Lecture Notes Disk

Presentation Embed Code

Download Presentation

Download Presentation The PPT/PDF document "DOS FAT CS 140 Lecture Notes: Disk Sched..." is the property of its rightful owner. Permission is granted to download and print the materials on this website for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.

DOS FAT CS 140 Lecture Notes: Disk Scheduling: Transcript


Slide 1 free File Allocation Table A 6 B 1 6 4 3 0 1 File A File B Directory 5 2 end 2 3 end 3 4 5 end 4 6 7 free 1 2 Disk Scheduling CS 140 Lecture Notes Disk Scheduling. There are two types of trans fat Naturally occurring trans fats are caused by the way that some animals such a s cattle Artificial synthetic industrial or manufactured trans fats are caused by the way some fats and oils are processed Why is trans fa ŒŽ‘ŒŽ‘Œ’Ž\fŒŽ\f\f’‡“\f”\f\b\fƒŒ Slide . 1. Too Much Milk. . Person A. 3:00. Arrive home: no milk. 3:05. Leave for store. 3:10. Arrive at store. 3:15. Leave store. 3:20. Arrive home, put milk away. CS 140 Lecture Notes: Concurrency. Slide . 1. Uniprocessor . Locks. void . lock_acquire. (. struct. lock *l) {. . intr_disable. ();. if (!l->locked) {. l->locked = 1;. } else {. . queue_add. (&l->q, . Slide . 1. Uniprocessor . Locks. void . lock_acquire. (. struct. lock *l) {. . intr_disable. ();. if (!l->locked) {. l->locked = 1;. } else {. . queue_add. (&l->q, . Slide . 1. Technology Changes. Mid-1980’s. 2012. Change. CPU speed. 15 MHz. 2.5 GHz. 167x. Memory size. 8 MB. 4 GB. 500x. Disk capacity. 30 MB. 500 GB. 16667x. Disk transfer rate. 2 MB/s. 100 MB/s. †€€€ŒŒŒŒ \r\f\t \r\f\f \r\f\r \r   \r ŒŽ‘’ŒŽŒ‘Œ“\t…\t†”•’ŒŽ–\b\n„\n ŸŒ\n’Ÿ\rŒŸ\r•˜—\b\rŒ\n\b›Œ™’\n\nŸŒ\b\n™\rŸŽ\n…Œ™\rŒ‘&# Œ]ŒvŒŒ]Œ]&Œ Slide . 1. Access Matrix. File A. File B. File C. Printer 1. Alice. RW. RW. RW. OK. Bob. R. R. RW. OK. Carol. RW. David. RW. OK. Faculty. RW. RW. OK. CS 140 Lecture Notes: Protection. Slide . 2. Access Matrix. BYU CS 345. Disc Scheduling. 2. CS 345. Stalling’s Chapter. #. Project. 1: Computer System Overview. 2: Operating System Overview. 4. P1:. Shell. 3: Process Description and Control. 4: Threads. 4. 1 Sodium 12%12% 5% Calories 150 Calories from Fat 70 % Daily Value*Total Fat Saturated Fat 0gTrans Fat 0gCholesterol Sodium 0%2% 5% Calories 90 Calories from Fat 0 Nutrition Fac Don Porter. Portions courtesy Emmett . Witchel. 1. Quick Recap. CPU Scheduling. Balance competing concerns with heuristics. What were some goals?. No perfect solution. Today: Block device scheduling.

Download Document

Here is the link to download the presentation.
"DOS FAT CS 140 Lecture Notes: Disk Scheduling"The content belongs to its owner. You may download and print it for personal use, without modification, and keep all copyright notices. By downloading, you agree to these terms.

Related Documents