Thread control block

Thread Control Block (TCB) is a data structure in an operating system kernel that contains thread-specific information needed to manage the thread.[1] The TCB is "the manifestation of a thread in an operating system."

Each thread has a thread control block. An operating system keeps track of the thread control blocks in kernel memory.[2]

An example of information contained within a TCB is:

  • Thread Identifier: Unique id (tid) is assigned to every new thread
  • Stack pointer: Points to thread's stack in the process
  • Program counter: Points to the current program instruction of the thread
  • State of the thread (running, ready, waiting, start, done)
  • Thread's register values
  • Pointer to the Process control block (PCB) of the process that the thread lives on

The Thread Control Block acts as a library of information about the threads in a system. Specific information is stored in the thread control block highlighting important information about each process.

See also

References

  1. ^ "Thread Control Block in Operating System". GeeksforGeeks. 2019-11-26. Retrieved 2023-09-04.
  2. ^ "CS162 - Fall 2014 #7 - Kernel Threads". inst.eecs.berkeley.edu. Archived from the original on 2023-12-07. Retrieved 2023-12-07.

Content Disclaimer

Informasi ini disarikan dari Wikipedia dan disajikan kembali untuk tujuan edukasi. Konten tersedia di bawah lisensi CC BY-SA 3.0. Kami tidak bertanggung jawab atas ketidakakuratan data yang bersumber dari kontribusi publik tersebut.

  1. The information displayed on this website is sourced in part or in whole from Wikipedia and has been adapted for the purpose of restating it. We strive to provide accurate and relevant information, however:
  2. There is no guarantee of absolute accuracy. Wikipedia is an open, collaborative project that can be edited by anyone, so information is subject to change.
  3. It is not intended to constitute professional advice. The content displayed is for informational and educational purposes only. For important decisions (e.g., medical, legal, or financial), please consult a professional.
  4. Content copyright. Wikipedia is licensed under the Creative Commons Attribution-ShareAlike License (CC BY-SA). This means that content may be reused with appropriate attribution and shared under a similar license.
  5. Responsible use. Any risk arising from the use of information from this website is entirely the responsibility of the user.