linux tasklet

A tasklet is a software mechanism used in the Linux kernel to perform work that can be deferred to a later time. It is similar to an interrupt handler, but with a lower priority and can be scheduled to run at a later time when the system is less busy.

Tasklets are used to handle asynchronous events in the kernel, such as network interrupts, timer interrupts, and other hardware interrupts. They allow the kernel to schedule work to be performed when it is safe to do so, without interrupting higher-priority tasks.

Tasklets are implemented as kernel threads that are scheduled by the kernel scheduler. They are executed in a softirq context, which is a special context that is used to perform low-priority work in the kernel.

Tasklets are a key component of the Linux kernel and are used extensively in many subsystems, including networking, storage, and device drivers. They provide a flexible and efficient way to handle deferred work in the kernel, making the system more responsive and efficient.