The dynamic tick patch

Posted Jun 17, 2005 5:52 UTC (Fri) by goaty (guest, #17783)
Parent article: The dynamic tick patch

Experience has shown that trying to play games with the timer interrupt while the system is loaded leads to a net loss in performance - the overhead of reprogramming the clock outweighs the savings.

Does this mean that nanosleep() will never have resolution higher than a timer tick? That really sucks.

Sometimes I despair of ever getting decent video playback on Linux. Last time I checked the X server couldn't even manage to sync to vsync, an operation that was trivial on the BBC Micro I had in 1985! At the moment a $50 TV with a $30 DVD player can achieve smoother DVD playback than Linux on a 2GHz workstation. Pathetic.