dap@astro.as.utexas.edu (Damon Permezel) (08/09/90)
When I am running the desktop stuff, and After\ Dark is installed, I have observed that there are some pixels in the top left corner, which, if I move the cursor into, will cause After\ Dark to draw a few lines of screen saver stuff, pause for 1sec - delta, draw .... and so on. Moving the mouse slightly will cause After\ Dark to function normally, which is to say it gets all the CPU it needs. This is when the system is otherwise quiescent. I cannot get it to perform similarly when just booted up on the MacOS with the same inits installed (no surprise here). This is what the system is doing when I get the parkinsonian behavior: (three successive snapshots, sorted and merged) F S UID PID PPID C PRI NI ADDR SZ WCHAN TTY TIME COMD 4410 S 0 265 264 0 0 0 5770006329 12013a88 console 2:09 startmac 4410 S 0 265 264 0 0 0 5770006329 12013a88 console 2:09 startmac 4410 S 0 265 264 4 0 0 5770006329 12013a88 console 2:09 startmac 4410 S 0 266 264 2 0 0 5bc0006457 12002458 console 5:07 CommandS 4410 S 0 266 264 2 0 0 5bc0006457 12002458 console 5:07 CommandS 4410 S 0 266 264 4 0 0 5bc0006457 12002458 console 5:07 CommandS This is what it thinks is going on when it is running smoothly: (three successive snapshots, sorted and merged) F S UID PID PPID C PRI NI ADDR SZ WCHAN TTY TIME COMD 4410 S 0 265 264 0 0 0 5770006329 12013a88 console 2:09 startmac 4410 S 0 265 264 0 0 0 5770006329 12013a88 console 2:10 startmac 4410 S 0 265 264 1 0 0 5770006329 12013a88 console 2:10 startmac 5410 R 0 266 264 40 60 0 5bc0006457 console 5:22 CommandS 5410 R 0 266 264 69 74 0 5bc0006457 console 5:33 CommandS 5410 R 0 266 264 68 73 0 5bc0006457 console 5:44 CommandS Observations: 12002458 is `selwait', which implies that if the mouse is a certain place on the screen, CommandShell is sitting in a select loop with a 1 second timeout, and therefor not running any threads associated with it's menu bar. Is this correct? Does this mean that one should avoid leaving the pointer at certain screen locations?