On Sun, 22 Dec 2013, Jeremy Jongepier wrote:
I don't mind, it is not my info after all :)
>From the bit above, it would appear that "turning the cpu off" while the
system is running only stops the kernel from assigning new tasks to a cpu,
but does not move threads already assigned to a new cpu. Concidering that
you probably run that script pretty early at boot, probably everything
assigned to those cpus is system and will run till shutdown. (just a guess
on my part though) There are utilities that can push tasks from cpu to
cpu, but I am not familiar with them.
With hyperthreading on, i am still able to run my delta 66 at -p64 with no
xruns. With hyperthreading off I can run the same card at -p16 with
guitarix and no xruns. So hyperthreading only makes a difference (for me)
Of note, I moved the card to not only a clear irq PCI slot, but the pci
slot with the highest clear irq. I had a midi interface in the next higher
irq and had problems till I switched them around phyically.
This is an older computer... single core P4 at 2.4Ghz and 2.5G ram.
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