Stone wrote: > > Is this patch for streamdev a direct result from selecting the new > "Tickless System (Dynamic Ticks)" option in kernel 2.6.21? If yes, then CONFIG_HIGH_RES_TIMERS "High Resolution Timer Support". Whether NO_HZ makes a difference I'm not sure, i ran into this w/ both options on. (launching "nice --15 vdr" w/streamdev+softdevice caused X to become unresponsive; i had to reset the machine. X was barely usable even with the vdr client niced) > does the new "dynamic" timer effect vdr's performance as well? After increasing that streamdev 1us usleep I don't see much difference in vdr (+streamdev+softdevice) performance. Haven't updated to highres timers on the vdr server yet, but i doubt it will change much. (iirc vdr itself limits the delays to >=3ms). artur