What is the performance of MINIX 3 like?
We made measurements of the performance of MINIX 3 (user-mode drivers) versus MINIX 2 (kernel-mode drivers) and MINIX 3 is 5-10% slower. We have not compared it to other systems because there are so many other differences (e.g., the current disk driver does not even have DMA, the ACK compiler is faster than gcc but the code is worse, the file systems differ etc.) The biggest difference is that MINIX 3 represents about 1 man-year of work so far and other systems represent thousands of man-years of work and our priority has been reliability, not performance.
