threads - Bilkent University Computer Engineering Department
... • To introduce the notion of a thread — a fundamental unit of CPU utilization that forms the basis of multithreaded computer systems • To discuss the APIs for the Pthreads, Win32, and Java thread libraries • To examine issues related to multithreaded programming ...
... • To introduce the notion of a thread — a fundamental unit of CPU utilization that forms the basis of multithreaded computer systems • To discuss the APIs for the Pthreads, Win32, and Java thread libraries • To examine issues related to multithreaded programming ...
SUSE Linux Enterprise Server 10 SP1 EAL4 High-Level Design Version 1.2.1
... This document is provided “AS IS” with no express or implied warranties. Use the information in this document at your own risk. This document may be reproduced or distributed in any form without prior permission provided the copyright notice is retained on all copies. Modified versions of this docum ...
... This document is provided “AS IS” with no express or implied warranties. Use the information in this document at your own risk. This document may be reproduced or distributed in any form without prior permission provided the copyright notice is retained on all copies. Modified versions of this docum ...
Threads and Events
... Ideally, there is the potential to speed up our computation by using multiple threads. If we can keep all the cores on the CPU actively executing our program, we can expect a speed up related to the number of cores. For example, if we have a quad-core processor, our program can run up to four times ...
... Ideally, there is the potential to speed up our computation by using multiple threads. If we can keep all the cores on the CPU actively executing our program, we can expect a speed up related to the number of cores. For example, if we have a quad-core processor, our program can run up to four times ...
Lessons Learned from 30 Years of MINIX,
... I did not have a C compiler. When my programmer, Ceriel Jacobs, was able to port a C compiler based on the Amsterdam Compiler Kit,18 written at the VU as part of my research, the system became self-hosting. Because I was now using MINIX to compile and build MINIX, I was extremely sensitive to any bu ...
... I did not have a C compiler. When my programmer, Ceriel Jacobs, was able to port a C compiler based on the Amsterdam Compiler Kit,18 written at the VU as part of my research, the system became self-hosting. Because I was now using MINIX to compile and build MINIX, I was extremely sensitive to any bu ...
Lecture 5: Cooperating Threads - EECS Instructional Support Group
... ThreadRoot() really gets started Stack growth ...
... ThreadRoot() really gets started Stack growth ...
Chapter 9: Virtual Memory Silberschatz, Galvin and Gagne ©2013! Edition!
... ■ Copy-on-Write (COW) allows both parent and child processes to initially ...
... ■ Copy-on-Write (COW) allows both parent and child processes to initially ...
Document
... Find highest priority ready_a process p; To preempt low-priority running processes by high-priority Find lowest priority running process q; ready_a ones. if (Priority(p) > Priority(q)) Preempt(p,q); } while (Priority(p) > Priority(q)); if (self->Status.Type!=’running’) Preempt(p,self); If the caller ...
... Find highest priority ready_a process p; To preempt low-priority running processes by high-priority Find lowest priority running process q; ready_a ones. if (Priority(p) > Priority(q)) Preempt(p,q); } while (Priority(p) > Priority(q)); if (self->Status.Type!=’running’) Preempt(p,self); If the caller ...
Programming with TCP/IP
... program and the communication protocols in an operating system (OS) is known as the Application Program Interface or API. Sockets provide an implementation of the SAP (Service Access Point) abstraction at the Transport Layer in the TCP/IP protocol suite, which is part of the BSD Unix. ...
... program and the communication protocols in an operating system (OS) is known as the Application Program Interface or API. Sockets provide an implementation of the SAP (Service Access Point) abstraction at the Transport Layer in the TCP/IP protocol suite, which is part of the BSD Unix. ...
user-level threads
... (grandma’s modem connection) – Takes server a loooong time to feed the response to grandma – While it’s doing that it can’t service any more requests ...
... (grandma’s modem connection) – Takes server a loooong time to feed the response to grandma – While it’s doing that it can’t service any more requests ...
Scheduling
... Surplus Fair Scheduling: A Proportional-Share CPU Scheduling Algorithm for Symmetric Multiprocessors Scheduler Activations: Effective Kernel Support for UserLevel Management of Parallelism", Condor- A Hunter of Idle Workstation ...
... Surplus Fair Scheduling: A Proportional-Share CPU Scheduling Algorithm for Symmetric Multiprocessors Scheduler Activations: Effective Kernel Support for UserLevel Management of Parallelism", Condor- A Hunter of Idle Workstation ...
Document
... Readers-Writers Problem Variations First variation – no reader kept waiting unless writer has ...
... Readers-Writers Problem Variations First variation – no reader kept waiting unless writer has ...
ch10
... To use a disk to hold files, the operating system still needs to record its own data structures on the disk ...
... To use a disk to hold files, the operating system still needs to record its own data structures on the disk ...
Before You Begin: Assign Information Classification
... Safe Mode – Starts Windows but only loads drivers for basic components, such as the keyboard and display. Safe Mode with Networking Support – Starts Windows identically to Safe Mode and also loads the drivers for network components. Safe Mode with Command Prompt – Starts Windows and loads the ...
... Safe Mode – Starts Windows but only loads drivers for basic components, such as the keyboard and display. Safe Mode with Networking Support – Starts Windows identically to Safe Mode and also loads the drivers for network components. Safe Mode with Command Prompt – Starts Windows and loads the ...
Scheduling
... and then selecting another in a round-robin fashion. Works if processes are compute-bound. What if a process gives up some of its 10 ms to wait for input? How long should the quantum be? is 10 msec the right answer? Shorter quantum => better interactive performance, but lowers overall system through ...
... and then selecting another in a round-robin fashion. Works if processes are compute-bound. What if a process gives up some of its 10 ms to wait for input? How long should the quantum be? is 10 msec the right answer? Shorter quantum => better interactive performance, but lowers overall system through ...
Introduction to Linux
... Linux Command-Line Interface ■ Linux shells: A shell is a command interpreter that allows you to type commands from the keyboard to interact with the operating system kernel. ■ sh (Bourne Shell) The sh shell was the earliest shell, being developed for UNIX back in the late 1970s. ■ bash (Bourne-Aga ...
... Linux Command-Line Interface ■ Linux shells: A shell is a command interpreter that allows you to type commands from the keyboard to interact with the operating system kernel. ■ sh (Bourne Shell) The sh shell was the earliest shell, being developed for UNIX back in the late 1970s. ■ bash (Bourne-Aga ...
Kernel I/O Subsystem
... Most return an error number or code when I/O request fails System error logs hold problem reports ...
... Most return an error number or code when I/O request fails System error logs hold problem reports ...
Threads
... (grandma’s modem connection) – Takes server a loooong time to feed the response to grandma – While it’s doing that it can’t service any more requests ...
... (grandma’s modem connection) – Takes server a loooong time to feed the response to grandma – While it’s doing that it can’t service any more requests ...
University of Tehran
... Difficult or impossible to implement own resource management abstractions. ...
... Difficult or impossible to implement own resource management abstractions. ...
Operating systems
... d. Real time. Often used in a dedicated application. The system reads information from sensors and must respond within a fixed amount of time to ensure correct performance. e. Distributed. Distributes computation among several physical processors. The processors do not share memory or a clock. Inste ...
... d. Real time. Often used in a dedicated application. The system reads information from sensors and must respond within a fixed amount of time to ensure correct performance. e. Distributed. Distributes computation among several physical processors. The processors do not share memory or a clock. Inste ...
IOS103_IOS102_III. Processes and CPU Scheduling_Wk3
... The ready queue is generally stored as a linked list. Each node in this linked list is a PCB. Therefore, each PCB has a pointer field that points to the next process in the ready queue. A ready-queue header will contain pointers to the first and last PCB’s in the list. The are also other queues in t ...
... The ready queue is generally stored as a linked list. Each node in this linked list is a PCB. Therefore, each PCB has a pointer field that points to the next process in the ready queue. A ready-queue header will contain pointers to the first and last PCB’s in the list. The are also other queues in t ...
Processes and CPU Scheduling
... The ready queue is generally stored as a linked list. Each node in this linked list is a PCB. Therefore, each PCB has a pointer field that points to the next process in the ready queue. A ready-queue header will contain pointers to the first and last PCB’s in the list. The are also other queues in t ...
... The ready queue is generally stored as a linked list. Each node in this linked list is a PCB. Therefore, each PCB has a pointer field that points to the next process in the ready queue. A ready-queue header will contain pointers to the first and last PCB’s in the list. The are also other queues in t ...
OS-level Virtualization and Its Applications - ECSL
... The FVM virtualization layer supports multiple VMs by namespace virtualization and copy-on-write. The FVM management console allows users to perform FVM operations on specified VM. . . . . The current prototype of FVM virtualization layer consists of a kernel-mode component and a user-mode component ...
... The FVM virtualization layer supports multiple VMs by namespace virtualization and copy-on-write. The FVM management console allows users to perform FVM operations on specified VM. . . . . The current prototype of FVM virtualization layer consists of a kernel-mode component and a user-mode component ...