Hi, I've been using -rt kernels since 2.6.29 because I do realtime audio on my laptop. The audio stability has been steadily improving since, and now I find that I can use 2.6.34 without the -rt patch and achieve the same stability as 2.6.33-rt - well, my latency requirements aren't that high, I just need to maintain 8.9ms completely stable, however before .34 it would be impossible without the -rt patch. So out of curiosity, what changed for .34? According to [1], on .33 Raw Spinlock Annotation was introduced in the mainline kernel. However, as said above, I can't get the same performance than with .34. I remember that I read somewhere that the one the biggest problems with latency requirements was the use of the BKL. Do you think there will be a significant improvement of latency (in specific cases of course) with the scheduled removal of BKL for 2.6.36? Thanks for the help, Pedro [1] http://www.osadl.org/Realtime-Linux.projects-realtime-linux.0.html -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html