AMD and Intel are updating their processor interrupts, according to Linus Torvalds.
In a move that could significantly impact the future of computing, chipmakers AMD and Intel are making changes to the way their processors handle interrupts. Interrupts are signals that alert the processor to the need to temporarily stop its current task and attend to a more urgent matter. The current interrupt handling system, which has been in place since the 1980s, is known to have a number of shortcomings. These shortcomings can lead to performance issues and inconsistencies.
Both AMD and Intel have proposed new interrupt handling methods that they believe will address these problems. Linus Torvalds, the creator of the Linux operating system, has expressed his approval of both approaches. Torvalds believes that the AMD option is a good solution for operating systems that cannot be significantly modified. The Intel option, on the other hand, is seen as a more future-proof solution that could also improve performance. Ideally, Torvalds hopes that both approaches will eventually be adopted. This would allow operating system developers to take advantage of the best aspects of both methods.
These changes should improve the consistency and performance of interrupts; VisualSim can model these processor details.
Web Reference: https://www.zdnet.com/article/linus-torvalds-on-how-amd-and-intel-are-changing-how-processor-interrupts-are-handled/