I agree: Magic ring buffers are cool! (We used then in BeOS in 1999!) Separately, watch the number of mmap segments. Linux kernel uses a tree to manage then, a

I agree: Magic ring buffers are cool! (We used then in BeOS in 1999!) Separately, watch the number of mmap segments. Linux kernel uses a tree to manage then, and the O(log N) operations really start to hurt at larger numbers.