Hello
L4Linux.org mentioned: "Compared to monolithic Linux, there is a small performance tradeoff because of the ยต-kernel architecture. However, the initial L4Linux has been somewhat optimized, and on L4/x86 it has a very acceptable slowdown of less than 4 % for any relevant load. " Any place can find more detail about the test? And I'm very curious the L4Linux performance vs "using hardware virtualization on top of L4", have you made any comparison before?
It depends. From my experience, I would say, a computation-intenive application demonstrates the same performance as a native application. I/O intensive is another case, here the difference can be from -something (well, uKernels can be faster sometimes) up to +unlimit. Several years ago we measured a network performance from one L4Linux instance to another. At the beggining the performance was near the 400Mb, which was comperable with performance of two VBox-based virtual machines.