Julf wrote: > Does it? Would love to see the actual correlation. _ HERE_IS_SOME_INFO_FROM_REDHAT...[IF_YOU_CAN_BELIEVE_THEY_KNOW_WHAT_THEY_ARE_TALKING_ABOUT]_
Newer CPUs may alter their performance based on a workload heuristic in order to save power. This is at odds with latency-sensitive workload requirements, causing sub-optimal performance/jitter. here is limited flexibility with regard to kernel threads as compared to userspace threads. Here are some options for task affinity and isolation to reduce jitter and latency:Isolate CPU cores from userspace tasks . https://access.redhat.com/sites/default/files/attachments/2012_perf_brief-low_latency_tuning_for_rhel6_0.pdf FYI, plenty of more information on the Web. Texas Instruments, RedHat and plenty of other companies with the money and staff to do "real" research can provide a lot of good data. All of my tweaks etc. comes from them as suppose to arm-chair engineers found in forums. Years ago I read an article by Texas Instruments which clearly showed the results of an experiment that showed the correlation between USB wire length and jitter.....even as USB trace increased on motherboards jitter increased. Of course as predicted people laughed at me and said I was crazy....clinging to the idea of some crap about digital data via spdif needed to be >1.5m and applying that to USB [because it too was digital data]. ------------------------------------------------------------------------ edwardthern's Profile: http://forums.slimdevices.com/member.php?userid=66099 View this thread: http://forums.slimdevices.com/showthread.php?t=106578 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/audiophiles
