current process

Minix3 process scheduling Analysis 5.1minix3 process scheduling Overview The process scheduling of minix3 is still very simple, and the scheduling algorithm is very short. Its purpose is to reflect a simple and efficient design principle. Of course,

1966 /* Here we just switch the register state and the stack. */1967 switch_to(prev, next, prev);1968 1969 barrier(); The Linux kernel process scheduler is based on two functions: The periodic scheduler function and the main scheduler

Document directory Purpose Description Key Points Considerations This article from: http://www.cnblogs.com/zhoujg/archive/2010/11/15/1877466.html   InRequirement: Document Analysis of requirement Retrieval TechnologyThe document analysis

Generally, lkm is used to provide additional functions for the system without re-compiling the kernel, such as loading device drivers and other hardware drivers. Linux, Solaris, and BSD (free, net, and open) operating systems allow the ability to

The linux kernel lock principle BKL is designed to introduce large-granularity locks when the kernel hackers are not sure about multi-processor synchronization. His design philosophy is that once a kernel path gets the lock, all other kernel paths

Linux2.6 kernel process scheduling series -- scheduler_tick () function 2. Update the time slice of the real-time process, RT /*** Decrease the time slice counter of the current process and check whether the time slice has been used up. * The

This article describes how to use the shell language in SCO OpenServer5.0.5 to exchange information between processes:Use named pipes to exchange information between processesUse kill and trap statements to exchange information between processesUse

I saw a lot of people asking what's the differences between application pool and appdomain in ASP. net. first of all, application pool is a concept in IIS, but appdomain is a concept in. net. you can write your own program to use 2 or more

Down operation: in the Linux kernel, the down operation on semaphores is as follows: Void down (struct semaphore * SEM); // It cannot be interrupted. Int down_interruptible (struct semaphore * SEM); // can be interrupted Int down_killable

In the previous blog post, I introduced a few commonly used functions in the ZMALLOC.C file, and then introduced the other functions in the file, in fact, many of the functions in this article are more interesting than the functions in the previous

OverviewBecauseNginxWork inMaster-workerMulti-process mode, if allworkerThe process listens to the same port at the same time, and when a new connection event occurs for that port, eachworkerThe process will call the functionngx_event_acceptAttempts

Why not use WMI? Because the execution is very slow, why not winreg? Because WinReg is inconvenient in terms of bulk acquisition and traversal of services, this method is usedThis method is executed with WMIC under the command lineGet Service

How the signal is generated:1. Keyboard inputIf CTRL + C means a SIGINT signal is generated2. Abnormal signal generationThis is the case when the program executes to 2/0, the read segment of the pipe is closed and the write end still writes data to

Morning log in the server compiled to run the service-side program, learned that after the command after the character "&", quit the shell, run the command can continue to run. Puzzled the reason, and to search the following online, understand the

 Linux kernel space and user spatial information interaction methodThe author of this article :Kang Hua : Master of Computer Science, mainly engaged in the Linux operating system core, Linux technology standards, computer security, software testing

an issue caused by a process memory layout exceptionThe previous period of time the business reflects a certain type of server update bash, SSH connected to the occasional login failed, the client spit error message as follows:Figure-0This version

IPC (inter-process communication, interprocess communication) can have three ways of sharing information (along with the file system, with the kernel, with shared memory). (Of course, although it is interprocess communication, it can also be

Go to http://www.cnblogs.com/iamfy/archive/2012/09/20/2694977.htmlA) Overview:1) starting with version 2.1, the Linux kernel has the ability (capability) concept that it breaks the concept of super users/ordinary users in the Unix/linux operating

& placed after the startup parameter to set this process as a background processBy default, the process is the foreground process, then the shell is occupied, we can not do other operations, for those who do not interact with the process, many times,

Linux process viewing and managementBasic features of the OS: file system, network functions, process management, memory management, drivers, security featuresprogram = instruction + dataCpu:Privileged DirectivesGeneral InstructionsProgram execution