> Microkernels still have lower performance than their monolithic counterparts
This is what I've understood, that the idea sounds good but in practice isn't as good as it seems like it would be.
This is what I've understood, that the idea sounds good but in practice isn't as good as it seems like it would be.
The Mill is one, that has been in development for a while, but its company hasn't published much lately and its current status is a bit unclear. It would have had something very similar to Spring/Solaris "Doors" in hardware, where the caller could have passed temporary permissions to memory ranges. A "kernel" would have been a process like any other, just with more permissions.