If I use a non-rt 64bit kernel I can start, say, konsole in 1 second, if I boot into a 32bit version of the same distro on the same hardware starting konsole takes 2-3 seconds, if I run my self made rt kernel (2.6.23.1-rt1 to 2.6.23.9-rt11) it takes up to 10 seconds to start konsole. My whole desktop experience feels sluggish under an rt kernel and Blender takes about 50% longer to render the same image. I absolutely need Jack for interconnection but I don't really need 1ms, or even less than 20ms, latency for heavy duty multitrack recording and I don't have the hardware to do so anyway. My question is; would anyone have any suggestions how to get the best Jack-savvy audio settings out of recent 2.6.23 to 2.6.24rc kernels without using the rt patchset ? --markc