Linux Process Priority and nice value, linux priority nice
After learning the complete Fair Scheduling Algorithm (CFS) of linux, record the learning track
This article mainly describes how the scheduling algorithm works and some scheduling knowledge.
Nice server architecture reconstruction and evolution since php has been made, and the source code involved in this article is also related to php.
So I sent it to the php Forum. if the zuning moderator thinks it is inappropriate, please help
interprocess communication (Ipc:inter process communication)Shared memory between processesSignal: SignalSemaphore: Send SignalImportant signals in process management: 1:sighup; Let a process not restart, you can reread its configuration file, and
Objective:VPS universality is not high, many people may have such a feeling, in the implementation of DU, tar and other commands, will cause the system load soared, Apache response slow. This can be mitigated by the nice command changing the process
Linux Process Priority and nice Value
After learning the complete and fair scheduling algorithm (CFS) in Linux, record the learning trajectory. This article mainly describes how the fully fair scheduling algorithm works and some scheduling knowledge.
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
Basic Concepts:
Process: The basic unit of the resource allocation and height of a computer, the entity that the program runs, and the container of the thread.
Threads: The unit that is actually executing in a process, the smallest unit of program
Order
This manual describes the Nice programming language. It is currently being revised, which means that the language is incomplete in many ways, or that some parts are largely blank. In the meantime, it is recommended that you read "nice Tutorial"
Capable of communicating between processes; Ipc,inter-process communication1.signal (signal)2.semaphore (semaphore)3.shared Memory (SHM)4.socketValid signal representation method:1. Use the digital code of the signal to represent it;2. Use the full
After learning the complete fair scheduling algorithm (CFS) of Linux, the learning trajectory is recordedThis article focuses on the working methods of the fully fair scheduling algorithm, and some scheduling knowledgeWe can see the details of the
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