Lecture 15 - Department of Math and Computer Science
... modify or wait for another process Credentials. Each process must have an associated user ID and one or more group IDs that determine the process’s rights to access system resources and files Personality. Not traditionally found on UNIX systems, but under Linux each process has an associated per ...
... modify or wait for another process Credentials. Each process must have an associated user ID and one or more group IDs that determine the process’s rights to access system resources and files Personality. Not traditionally found on UNIX systems, but under Linux each process has an associated per ...
Linux Booting Procedure
... The kernel is the central part in most computer operating systems because of its task, which is the management of the system's resources and the communication between hardware and software components ...
... The kernel is the central part in most computer operating systems because of its task, which is the management of the system's resources and the communication between hardware and software components ...
CS153: Lecture 3
... Process ID (PID) Execution state Hardware state: PC, SP, regs Memory management Scheduling Accounting Pointers for state queues Etc. ...
... Process ID (PID) Execution state Hardware state: PC, SP, regs Memory management Scheduling Accounting Pointers for state queues Etc. ...
Windows Kernel Internals Overview
... Provides file-based caching for buffer file system I/O Built over the memory manager ...
... Provides file-based caching for buffer file system I/O Built over the memory manager ...
Windows Kernel Internals Overview
... Provides file-based caching for buffer file system I/O Built over the memory manager ...
... Provides file-based caching for buffer file system I/O Built over the memory manager ...
course syllabus
... By the end of the semester, students in this course would have developed their own basic functions of an operating system through the completion of a series of laboratory assignment. The lectures will help to familiarize students with the main concepts of an operating system. Technical Requirements: ...
... By the end of the semester, students in this course would have developed their own basic functions of an operating system through the completion of a series of laboratory assignment. The lectures will help to familiarize students with the main concepts of an operating system. Technical Requirements: ...
Chapter 6: CPU Scheduling 6.1 Basic Concepts CPU–I/O Burst Cycle
... Provide separate queue for each processor. In this case, one processor could be idle with an empty queue, while another processor will be very busy. Could use a common ready queue, all processes go into one queue and are scheduled onto any available processor. Scheduling approaches are : Each proce ...
... Provide separate queue for each processor. In this case, one processor could be idle with an empty queue, while another processor will be very busy. Could use a common ready queue, all processes go into one queue and are scheduled onto any available processor. Scheduling approaches are : Each proce ...
Chapter Four : Processor Management
... Transition Among Process States HOLD to READY : Job Scheduler using a predefined policy. READY to RUNNING : Process Scheduler using some predefined algorithm RUNNING back to READY : Process Scheduler according to some predefined time limit or other criterion. RUNNING to WAITING : Process Sc ...
... Transition Among Process States HOLD to READY : Job Scheduler using a predefined policy. READY to RUNNING : Process Scheduler using some predefined algorithm RUNNING back to READY : Process Scheduler according to some predefined time limit or other criterion. RUNNING to WAITING : Process Sc ...
Lecture 1
... No one user should be able to starve OS and/or other users of system resources (e.g., CPU). No user should be able to trash I/O devices (deliberately or by error). ...
... No one user should be able to starve OS and/or other users of system resources (e.g., CPU). No user should be able to trash I/O devices (deliberately or by error). ...
ppt
... • Why separate the concept of a thread from that of a process? – Discuss the “thread” part of a process (concurrency) – Separate from the “address space” (Protection) – Heavyweight Process Process with one thread ...
... • Why separate the concept of a thread from that of a process? – Discuss the “thread” part of a process (concurrency) – Separate from the “address space” (Protection) – Heavyweight Process Process with one thread ...
Embedded Linux Design and Programming
... Kernel module to create /proc file structure (struct proc_dir_entry) with file system read/write APIs. Kernel variable jiffies represents the number of clock ticks since system initialized. Kernel variable HZ represents the clock tick rate, the frequency of clock ticks per second (i.e. HZ = 250 mean ...
... Kernel module to create /proc file structure (struct proc_dir_entry) with file system read/write APIs. Kernel variable jiffies represents the number of clock ticks since system initialized. Kernel variable HZ represents the clock tick rate, the frequency of clock ticks per second (i.e. HZ = 250 mean ...
Chapter 4 - Angelfire
... It’s only when a ULT is in the active state that it is attached to a LWP (so that it will run when the kernel level thread runs) A thread may transfer to the sleeping state by invoking a synchronization primitive (chap 5) and later transfer to the runnable state when the event waited for occurs A th ...
... It’s only when a ULT is in the active state that it is attached to a LWP (so that it will run when the kernel level thread runs) A thread may transfer to the sleeping state by invoking a synchronization primitive (chap 5) and later transfer to the runnable state when the event waited for occurs A th ...
Introduction
... Distinguish between the client–server and peer-to-peer models of distributed systems. Answer: The client-server model firmly distinguishes the roles of the client and server. Under this model, the client requests services that are provided by the server. The peer-to-peer model doesn’t have such stri ...
... Distinguish between the client–server and peer-to-peer models of distributed systems. Answer: The client-server model firmly distinguishes the roles of the client and server. Under this model, the client requests services that are provided by the server. The peer-to-peer model doesn’t have such stri ...
CS 519 -- Operating Systems -
... External events which occur independently of the instruction execution in the processor, e.g. DMA completion Can be masked (specifically or not) ...
... External events which occur independently of the instruction execution in the processor, e.g. DMA completion Can be masked (specifically or not) ...
![Operating Systems [OS]](http://s1.studyres.com/store/data/003405497_1-fcdfdf12ca283ac50da021c971edcf1f-300x300.png)
Services - University of Worcester
... Once the Control Set is loaded… – kernel uses the data structures provided by NTLDR to create the HKEY_LOCAL_MACHINE\HARDWARE key » hardware data collected at system startup » includes information about various hardware components and system resources allocated to each device ...
... Once the Control Set is loaded… – kernel uses the data structures provided by NTLDR to create the HKEY_LOCAL_MACHINE\HARDWARE key » hardware data collected at system startup » includes information about various hardware components and system resources allocated to each device ...
ppt
... • Why separate the concept of a thread from that of a process? – Discuss the “thread” part of a process (concurrency) – Separate from the “address space” (Protection) – Heavyweight Process Process with one thread ...
... • Why separate the concept of a thread from that of a process? – Discuss the “thread” part of a process (concurrency) – Separate from the “address space” (Protection) – Heavyweight Process Process with one thread ...
Stallings - Chapter 11
... DMA and CPU share the same system bus DMA unit steals bus cycles (from the CPU) to transfer data (cycle stealing) The CPU instruction cycle is suspended to allow the current data word transfer This is not an interrupt (no context saves) The CPU just pauses for one bus cycle ...
... DMA and CPU share the same system bus DMA unit steals bus cycles (from the CPU) to transfer data (cycle stealing) The CPU instruction cycle is suspended to allow the current data word transfer This is not an interrupt (no context saves) The CPU just pauses for one bus cycle ...
I/O Management and Disk Scheduling (Chapter 10)
... • The I/O module has a local memory of its own and is, in fact, a computer in its own right. With this architecture, a large set of I/O devices can be controlled with minimal CPU involvement. A common use for such an architecture has been to control communications with interactive terminals. The I/O ...
... • The I/O module has a local memory of its own and is, in fact, a computer in its own right. With this architecture, a large set of I/O devices can be controlled with minimal CPU involvement. A common use for such an architecture has been to control communications with interactive terminals. The I/O ...
Delimited continuations in operating systems
... programming languages to argue by examples that continuations, especially delimited ones, pervade operating systems—if only implicitly. We contend that systems programmers should recognize the applications of delimited continuations, so as to design systems with sensible defaults and implement them ...
... programming languages to argue by examples that continuations, especially delimited ones, pervade operating systems—if only implicitly. We contend that systems programmers should recognize the applications of delimited continuations, so as to design systems with sensible defaults and implement them ...