priority support

Use redis to Implement Message queues that support priority  Why is the introduction of the message queue mechanism in the message queue system greatly improving the system. For example, in a web system, a user needs to send an email notification to

Why do you have a process priority?This does not seem to explain too much, after all, since the birth of a multitasking operating system, the ability of the process to execute CPU is a matter that must be artificially controlled. Because some

In the classification process of QoS, the most important thing is to configure different priorities for different packets, and sort the packets of inbound switches by priority, then, the switch executes the corresponding QoS behavior based on the

Cloud computing design model (16) -- priority queue modelSend requests with higher priority to the service, so that requests with higher priority are received and processed more quickly than a lower priority. This mode is useful in applications that

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

Http://blog.chinaunix.net/uid-24227137-id-3595610.htmlSpy on kernel---process scheduling targets, nice value, static priority, dynamic priority, real-time priorityThis series of articles written by Zhang Tonghao, reproduced please indicate the

How to implement priority queue and RabbitMQ priority queue based on rabbitmqOverview For various reasons, up to now, RabbitMQ has not implemented a priority queue, but only implemented priority processing for Consumer. However, for various reasons,

Embedded OS entry notes-use RTX as a case: IX. About priority-flip, inheritance and ceiling   When scheduling involves priority, there will be many problems. This article describes the main problems of Priority Scheduling and some coping strategies.

How to do Message Queuing using Redis First Redis is designed for caching, but because of its own nature, it can be used to do Message Queuing. It has several blocking APIs to use, and it is these blocking APIs that give him the ability to do