On Fri, December 29, 2017 12:10 pm, Chris Caudle wrote: > any modern multi-socket server or workstation is considered > cache-coherent NUMA The lscpu utility will show how many NUMA nodes the kernel scheduler considers your machine to have. You can also install numactl to show more details, the output of numactl --hardware will display the difference in memory access latencies between the different nodes. You can use more manual control of process placement with numactl but I don't think that is typically worth the effort on dual socket machines. Maybe if you are trying to tune your database for maximum performance on an 8 or 16 socket machine, but that doesn't seem like something you would typically use for audio processing. Possibly for extremely low latency use it could be useful to pin all the audio processes or threads to the cores which share a memory controller, or to pin them to the socket which controls the I/O connector with the sound card. Again seems like a pretty special case, not something that would go into the linux audio FAQ for example. -- Chris Caudle _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx https://lists.linuxaudio.org/listinfo/linux-audio-user
