We imported an oar from another grid during a transfer and it had a botched bowling alley in it. Didn't realize it was replicating "physical" bowling pins all over the grid. lol. it got to the point where nobody could move like walking in molasses rubber bands. So I made this module to put physics to sleep when nobody is around. :) so we spent all day hunting down every last bowling pin and destroying it, which was tricking because they weren't showing up in area search and many of them were in 0,0,0 corners of regions all over the grid so we had to excavate and go deep-sea diving to find them. So now the grid is running smooth and no crashes. yay. The module is here maybe it's useful. it puts physical prims to sleep if nobody is on the region so it reduces the work of the physics engine. If someone drops by it magically wakes up all the physical prims. https://opensimworld.com/post/131135