When the UC sold the UCSD P-System the profiler and native code compiler were abandoned. With P-Code optimized for size and hot spots native compiled, small P-System programs ran comparably to programs fully compiled to native code and large programs ran thousands of times faster by reducing (usually eliminating) swapping and paging on those early memory-starved systems. I too migrated to Sun-2s but I purchased them myself. I'd learned the hard way that software developers need to own the means of their production!