David Lethe writes: > There is absolutely no doubt that some systems will run slower with > MPE/iX 5.0. This is because HP chose not to compile code to the lowest > common denominator PA-Risc hardware. Unfortunately, the MPE compilers are *only* capable of compiling for the lowest common denominator. As far as I know, there is no way to get any of the Native Mode compilers to generate code that will run better on new systems or worse on old systems. > Specifically 9x7 class machines will generally see no performance > gains/losses, while the older systems should see 10-15% slower execution > on certain applications... I know that there are a few places where, because of differences in newer hardware, there is now an 'old way' and a 'new way' to do things. In some cases HP *finally* got around to changing MPE to do some of these things the 'new way', which does have this kind of effect. Newer systems gain a small improvement, and in one or two cases older systems will suffer a small penalty because of this change. I don't know of any specific cases where this penalty should be as dramatic as 10-15%. > I have the specifics on what programs, percentage losses, etc... but I > guess that anybody with the older hardware already knows this > information, and anybody with the new hardware doesn't need it anyway. I don't know of anybody who has this information, so I for one would be very interested in seeing what you have. G.