status Word PSW value, user stack pointer value
Process scheduling information: Process status, process priority, additional information for process scheduling
Additional Information: program and data pointers, process synchronization and communication mechanisms, resource lists, connection pointers
How the PCB is organized
Single queue: The PCB of all processes is organized into a single queue through the linked list.
999Groupadd–g 999 AAGroupmod: Group Property ModificationGroupmod[option] GROUPNAME-ngroup_name-ggidgpasswd : Set password for groupExample: for xx Group settings Group PasswordGPASSWD XXGroupdel : Delete a groupExample: Delete xx GroupGroupdel XXID : View user-related IDs information; ID [OPTION] ... [USER]-u:uid-g:gid-g:groups-n:nameExample: Display current user or AA user Information650) this.width=650; "title=" \ "\ \" 3.png\\ "\" "src="%5c "alt=" \ ""/>650) this.width=650; "title=" \ "\
with people. Some people equate knowledge management with the identification, acquisition, development, decomposition, use and storage of enterprise knowledge. In fact, knowledge management is a work platform and operation mechanism for enterprises to learn and share collaboratively on the information and knowledge level, with the aim of collaborative knowledge development and sharing. This is consistent w
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In the previous summary of the one-way linked list structure, now began to practice the two-way linked list structure, if fully understand the data structure of unidirectional link
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Recently, I suddenly felt that the basic knowledge of IT technology should be supplemented, because not only can the basic knowledge be further consolidated, it is of great benefit both in improving the technical level and in later employment. Therefore, it is necessary to lay a goo
, geometric distribution, two distribution and Poisson distribution, normal distribution, statistical sampling, confidence interval construction, hypothesis testing, chi-square distribution, correlation and regression, etc., complete coverage of the AP examination scope. Matrix Analysis: This book from the perspective of mathematical analysis of matrix analysis of classical methods and modern methods, based on new, there is a certain depth, and give in multivariate calculus, complex analysis, di
Learning from linux-disk management and learning from linux
1: df is used to view the capacity information of mounted disks.
-I. View inodes usage
-H is displayed in proper units
-K-m is displayed in k M units.
2: view the space occupied by a file or directory by du [-abckmsh] [file name and directory name]
The du + directory only lists the sizes of directories a
control of the complexity of the system helps reduce the risk of development.(5) from the software engineering point of view, the software maintenance costs accounted for about the total cost of 55%~70%, the larger the system, the higher the cost. Contempt for system maintainability is the biggest risk for large software systems. During the long period of software operation, the business rules are sure to evolve, and the scientific solution to this p
In many versions of Linux, it can be roughly divided into two series, namely: Redhat system Linux,debian system Linux. In the two different systems of Linux, the management of the package is also a certain difference, but their principles are roughly the same. This note will focus on the management of the software package in Redhat Linux, and briefly on the
are almost identical to the file management commands under Linux under Terminal Control 10> mkdir (path) creates a new directory, equivalent to the Linux $mkdir command 11> RmDir (path) Delete empty directory, equivalent to Linux under the $rmdir command 12> list (path) to return all files and folders in the path directory, the equivalent of Linux under the $ls command 13> remove (path) Delete files, Equiv
Large enterprises spend nearly millions of dollars each year training employees, business partners and providers. Learning management systems are becoming increasingly complex, not only to meet physical equipment and web-based training delivery needs, but also to meet the needs of planning and scheduling activities. The implementation of the
Operating System Concepts Learning note 15 memory management (i) backgroundMemory is the center of modern computer operation. Memory has a very big group of words or bytes, and each word or byte has its own address. The CPU extracts instructions from memory based on the value of the program counter (PC), which can cause further reads and writes to a specific memory address.A typical instruction execution cy
Solemn statement: Without my permission, not for commercial or non-commercial reprint and use, if necessary, please contact: yrj1978@hotmail.comIntroductionWhy do you write this note:1, the Chinese version of the book translation is too rubbish to read. Read the original English, you can very good understanding of the author's ideas. Make a note of this memo2, has been learning Linux kernel knowledge lack of systematization, borrow the book Study, sys
name, process status, process priority, semaphore, on-site protection, process parameters, process program address
Pcb
Process identity information: internal to the process (the system assigns it the label) and external identifiers (name of a person)
Processor status information: General register value, instruction counter value, program status Word PSW value, user stack pointer value
Process scheduling information: Process status, process priority, additional i
In the past few days, I took a look at Robert Love's Linux kernel design and implementation (of course, I am reading the Chinese translation version. Process management, scheduling, system scheduling, and interruption. I think this book is really well written. It seems that it is not so difficult for people like me, unlike the Linux kernel source code scenario analysis when I first came into contact with Linux, I saw that I was "in the fog". Now I thi
After the data has been entered into the list, the next, friends may want to know, some of the data, just want to give some users to see, or edit, whether the list supports such operations.Microsoft's SharePoint platform, for the user's needs, can be said to be thoughtful, rights management, of course, it is impossible to miss, but also rights
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