Operating Systems Lecture 9a Dr Ronald Grau School of Engineering and Informatics Spring term 2020 Previously 1 Memory management Virtual memory Addressing and address spaces Partitioning and segmentation Paging & Page replacement Recap: Questions 2 Recap questions 1. How can we avoid page faults when a process starts? 2. How can […]
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Operating Systems Lecture 5b Dr Ronald Grau School of Engineering and Informatics Spring term 2020 Previously 1 Process Synchronisation Inter-Process Communication Race conditions Communication models Critical section Software vs. Hardware solutions Condition synchronisation Recap: Synchronisation 2 Questions What are mechanisms with which processes can communicate with each other?
Processes Operating Systems Lab Class 2 This lab is about processes. We will use the Linux operating system, which is a unix-style operating system. We can trace its lineage1 back to Multics via Minix2 (which was written by A. Tanenbaum, the author of our textbook). There are plenty of variants of Linux, which all use
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File Systems Operating Systems Lab Class 10&11 In this lab session (and the following one) you will write a program that implements the basic i-node based file system. Disk Space Management Methods Operating system maintains a list of free disk space to keep track of all disk blocks which are not being used by any
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Operating Systems Lecture 4a Dr Ronald Grau School of Engineering and Informatics Spring term 2020 Previously 1 Scheduling Time scales: Long-, medium-, and short-term scheduling Scheduling criteria Scheduling algorithms: FCFS, SJF, SRT, RR Today 2 Scheduling Performance overview of last week’s scheduling policies: FCFS, SJF, SRT, RR Another look at
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Java Threads Operating Systems Lab Class 3 In this lab session we will get hands on the basics of thread programming in Java . You will learn how to create threads and how to wait for them to terminate (see the example in Appendix 1). We will also exploit the data parallelism pattern to speed
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Operating Systems Lecture 2b Dr Ronald Grau School of Engineering and Informatics Spring term 2020 Previous Lecture 1 Processes Bootstrapping Processes Creation Management Execution Termination Quick knowledge test 2 A process is a program in execution What does it mean when we say processes run concurrently? What
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1 File Systems BasicFSMain.java File Systems Operating Systems Lab Class 10&11 – Model Solutions 1 FileSystem.java SuperBlock.java Inode.java Volume.java Util.java 5. The maximum size of a volume that we allow: 216 = 65.536 KB. 6. The maximum size of a block: 28 = 256 B. 7. The maximum number of i-nodes: 256. 8. The maximum
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1 Database Database.java Java Threads Operating Systems Lab Class 5 – Model Solutions 1 WriterTask.java ReaderTask.java Record.java Reflections: 5. For the example input in the lab sheet, you might get inconsistent output such as writer 0: Joe Q Brighton writer 1: Mary L London reader 2: Joe L London reader 1: Mary Q London reader
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More Java Threads Operating Systems Lab Class 4 In this lab session we will get hands on the basics of thread programming in Java. You will learn how to create threads and how to wait for them to terminate. We will also exploit the data parallelism pattern to speed up the processing of input data.
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