43:: CPU hog: When the sim is paused, it eats CPU cycles. It will happily use 99+% of the CPU if there is no competition. I don't understand why any appreciable CPU cycles are needed during pause.
44:: Memory hog: When the sim is paused, if you leave it alone for 15 minutes or so, it starts eating virtual memory at the rate of several megabytes per minute. That's a lot. I'm talking about the "VIRT" quantity reported by top(1) ... in contrast to ps(1) which does not make the problem quite so obvious. I conjecture that the reason for the delay is that the sim has a certain amount of memory already availble on its free list, and the memory hog has to chew through that before new memory needs to be requested from the VM system. I observe that if the simulator is un-paused, virtual memory size increases for a while, then levels out. I also observe that after an un-pause, it takes another 15 minutes of pause before obvious memory eating resumes. These observations lead me to conjecture that some type of events or messages are getting backlogged during pause, but are belatedly processed when the pause ends, thereby freeing up some space on the free list. ------------------------------------------------------------------------------ SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
