Introduction Have you ever encountered a scenario where the system suddenly freezes under high load, and after debugging, you find that it was due to directly parsing JSON data in the serial port receive interrupt? Or have you noticed that the response time of a certain interrupt is too long, causing delays in executing other … Read more
Linux Kernel (12) – Delayed Work and Queue Parameters Delayed Work Problem When analyzing work queues, the main approach is to place the work onto the work queue, which is then processed by a specific thread. However, we may encounter a situation where we do not want to place the work immediately onto the work … Read more
Linux Kernel (11) – Work Queue Management Problem Traditional Work Queue In previous content, we mentioned the work queues that follow interrupts, including shared work queues and custom work queues, which indicate that time-consuming tasks will be assigned threads for processing. The above image illustrates the setup of a traditional work queue. CPU Queue: The … Read more