Transferred from: http://www.cnblogs.com/wz19860913/archive/2008/08/04/1259807.html
Each thread has a priority, the range is 0~31,0 to the lowest priority, and 31 is the highest priority. When the system decides which thread needs to be
1. context switching: around 20 ms (you can use the second parameter of the getsystemtimeadjustment function for details). Windows displays all existing thread kernel objects. only some of these objects are considered to be schedulable. windows
The CONTEXT structure plays an important role in thread scheduling. In all WINDOWS-defined structures, CONTEXT is unique dependent on the CPU. We can call GetThreadContext to obtain the status of the current CPU register.
BOOL GetThreadContext(
Priority reversal in embedded real-time systems
Author: Liu Hui Meng fanrong Xi jingke Source: MCU and Embedded System Application updated on:
Brief description:In embedded real-time systems, due to multi-task resource sharing, there are usually
1. Question proposal
Currently, commercial RTOS with a high market share include VxWorks/PSOs, QNX, lynxos, vrtx, and Windows CE. The vast majority of these RTOS are multi-task real-time micro-kernel structures, using priority-based preemptible
Deadlock (deadlock) Refers to two or more than two processes in the execution process, because of the contention for resources caused by a mutual waiting phenomenon, if there is no external force, they will not be able to proceed. At this point the
Original: http://blog.csdn.net/luoweifu/article/details/46701167Author: LuoweifuReprint please mark the source of the name"Multi-threading and multi-process (1)--talking about threads and processes from the perspective of an operating system"
Reprint: http://blog.csdn.net/a_ran/article/details/43759729
Context switching between thread schedules
What is context switching.
If the main thread is the only one, then he is basically not scheduled to go out. On the other hand, if the number
1. Operating system thread scheduling processEach thread has a contextual context structure that holds the thread's kernel object, which holds the CPU register at the time of the last executionThe state. At regular intervals, Windows looks at all
This article is translated from: XQQ524148626 's column, http://blog.csdn.net/xqq524148626/article/details/4960513This address: http://blog.csdn.net/qingdujun/article/details/41808261vc++6.0 run through, example:(a) Function prototypes:BOOL
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.