Hi, I've been conducting research using a libraryOS that I've designed that uses a mutex free FIFO to implement pipes while adhering to Linux's API. I found that this can increase throughput by close to 3X, and that most of the overhead is due to the pipe's mutex preventing concurrent writes and reads. I see that there is a similar implementation to this used in the kernel provided in kfifo.h which could possibly be used to improve this. I couldn't find much information about why Linux doesn't employ a strategy like this and was hoping for some feedback. This is my first time posting here, appreciate any responses! Thanks!
