'Context switches' diaporamas de présentation

Chapter 5: CPU Scheduling

Chapter 5: CPU Scheduling. Spring 2012. Chapter 5: CPU Scheduling. Basic Concepts Scheduling Criteria Scheduling Algorithms Thread Scheduling Multiple-Processor Scheduling Operating Systems Examples Algorithm Evaluation. Objectives.

1.08k views • 81 slides

Chapter 5: CPU Scheduling

Chapter 5: CPU Scheduling. Adapted to COP4610 by Robert van Engelen. Basic Concepts. Maximum CPU utilization is obtained with multiprogramming Several processes are kept in memory at one time When a process has to wait, the OS scheduler switches the CPU to another process

532 views • 48 slides

Processes

Processes. Definitions. A program is a file that contains an executable module. Running a program loading the list of machine level instructions into memory and having the CPU execute the instructions one at a time. Hardware View. Memory. environment variables. Program Counter.

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Operating Systems CMPSC 473

Operating Systems CMPSC 473. I/O Management (1) November 30 2010 - Lecture 23 Instructor: Bhuvan Urgaonkar. Announcements. Project 3 due today Please indicate time to meet TA on sheet Project 4 out and due on Dec 10 You need to study material on content addressable storage

560 views • 42 slides

Compile-Time Speculative Scheduling

Compile-Time Speculative Scheduling. Wen-mei Hwu Dept. of ECE University of Illinois at Urbana-Champaign. Control Speculation. Executing an instruction before knowing that its execution is required Moving an instruction before a decision point for its execution

538 views • 40 slides

Over-Approximating Boolean Programs with Unbounded Thread Creation

Over-Approximating Boolean Programs with Unbounded Thread Creation. Natasha Sharygina Byron Cook, Daniel Kroening. Introduction . Counterexample guided abstraction refinement (CECAR) is a successful method to verify programs. Initial Abstraction. Verification. No error or bug found.

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Phony Programming (Series 60 Symbian Phones)

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Scheduling Policies

Scheduling Policies. Announcements. Midterm vote: Keep current date (10/17)? Advance prior to 10/12 (drop off deadline)? Quiz 2 graded. Check out your grades on compass periodically

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Scheduling Policies and Introduction to Signals

Scheduling Policies and Introduction to Signals. Lecture 14 Klara Nahrstedt. CS241 Administrative. Read Chapter 9. 1, 9.2 Stallings for Scheduling Policies Read R&R Chapter 8.1 and 8.2 for Introduction to Signals SMP4 is ON this week (2/19-2/26) SMP3 Quiz will be on Wednesday (2/21)

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Supporting Time-Sensitive Applications on a GENERAL PURPOSE ( Commodity ) OS

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Guidance for shopping apps

Guidance for shopping apps. Mark Hopkins Program Manager, Windows Scenario Adoption 2-111. Agenda. Realizing the opportunity User journey Platform features for shopping apps Completing the sale Branding. Realizing the opportunity. Engage users deeply Tailor the UX

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Software and Energy Consumption

352 views • 22 slides

Sybase ASE: Compression option

Sybase ASE: Compression option. Rev. 11.2012. http://andrewmeph.wordpress.com mailto: andrew.me.ph@gmail.com. Note and disclaimer:.

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UPC AMR Status Report

UPC AMR Status Report. Michael Welcome LBL - FTG. Outline. Why Chombo AMR as a target application? Overview of the Chombo Framework Current status of UPC-AMR Preliminary performance data Ghost zone exchange analysis. Why AMR?. Methodology of interest to DOE Chombo , AmrLib, GrACE, Flash

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Implementation of IP Mesh Network using ULE Protocol over DVB-S Links

Implementation of IP Mesh Network using ULE Protocol over DVB-S Links. Wan Tat Chee Network Research Group School Of Computer Sciences Universiti Sains Malaysia 11800 USM, Penang, Malaysia. tcwan@cs.usm.my. Introduction. Satellite-based Internet connectivity

335 views • 19 slides

Replacing legacy systems with FreeSWITCH

David Knell 3C Limited. Replacing legacy systems with FreeSWITCH. About me. MA in Computer Science 25 years software development 15 years in telephony Hardware. The problem. Client has call center in Brazil TDM (Dialogic) IVR Reliability Cost Perception

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Operating Systems Lecture 16 Scheduling II

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Hardware

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SEDA: An Architecture for Well-Conditioned, Scalable Internet Services

SEDA: An Architecture for Well-Conditioned, Scalable Internet Services. Matt Welsh, David Culler, and Eric Brewer Computer Science Division University of California, Berkley Presented By Oindrila Mukherjee. Agenda. What is SEDA ? Why SEDA ? Thread-based Concurrency

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EECS 470

EECS 470. Virtual Memory Lecture 15. Why Use Virtual Memory?. Decouples size of physical memory from programmer visible virtual memory Provides a convenient point to implement memory protection Creates a flexible mechanism to implement shared memory communication. Address Translation.

267 views • 12 slides