Threads

• A thread (or lightweight process) is a basic unit of CPU utilization that has a program counter, a register set, and a stack space.

• With the “right” support, a process could have several threads concurrently executing in it, all of them sharing the same address space.

• Reasons:

  • convenience
  • Potential Performance gains.

Data segment (shared)

Text segment (shared)

Threads control blocks & stacks

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