I have servers with lots of RAM yet slow swap disks. So full crash dumps are too slow. Instead, I use textdumps, which are theoretically much faster. However, these servers also have about 10,000 threads apiece, so textdumps are also slow. They take tens of minutes. I have dual console setup: both serial and video. It seems to me that the speed of the textdump might be limited by the video system. So is there anyway to capture a textdump without printing everything to the console? textdump(4) implies that there isn't; you must print stuff to console in order to capture it, and you must capture in order to dump. Would somebody please tell me that I'm wrong?
-Alan
