Tingsryd (Industrial) Jul 28, 2010
Are you referring to "Display Selected Objects" in manufacturing preferences? If you are, displaying should never take as long as generating an operation. Operations can take slightly longer to display, or generate, when using spline, nurbs data with small intol/outtol settings such as .0001" or smaller. Smoothing will also affect this. I find that when generating a large operation, with small intol/outtol, with find cut step and smoothing turned on, that processing can take quite a bit longer and displaying the operations can be longer as well.
My issues were mostly alleviated when I upgraded my hardware. My old processor was old-school 3.2 xeon single core, I think with the old 800MHz front side bus, very old! My new computer is a quad xeon with 12GB or ram and a Quadro FX3800 graphics card. While not a top-end system it is quite a solid performer. Even mundane tasks such as setting the drafting style (hotkey S) while dimensioning has sped up greatly; it used to take 2-3 seconds to come up but now it is almost instant. Also, with multi cores and plenty of ram I regularly use parallel generate on everything I do.
This may not be the answer to your question or what you want to hear but this has been my experience. As for displaying selected objects automatically, I turned it off on my computer by default. I create many large operations and refer to them during my programming workflow so it consumes a lot of time. However, I turned it on for other workstations because their toolpaths tend to be smaller and it works quite well for their purposes.
Siemens is always adding new functionality to NX and sometimes it can cost computer resources. In the end it is always better to have options for the programmers and designers. The important thing is that you can usually chose whether to use many of the options to suit your needs and capabilities.
nx7
Windows7
Xeon 5520
Quadro FX3800
12GB ram