> > Sorry, RFC v2 I think. It got a bit confusing with series names/versions. > > Well, my worry is that 2M can be a high tax for smaller machines. > Compile-time might be cleaner, but it has downsides. > > It is also not clear if these users actually need physical HZP or virtual > is enough. Virtual is cheap. We do need physical as the main usecase was for block IO where we will be DMAing. The main reason I was seeing an improvement in perf was we were sending bigger chunks of memory in a single bio_vec instead of using multiple bio_vec. -- Pankaj