3 Aug
2014
3 Aug
'14
1:44 p.m.
On Mon, 28 Jul 2014 16:29:54 -0700
Russell Hanaghan <hanaghan.osaudio(a)gmail.com> wrote:
I have many hiding spots to probe as it were. I do
want to ask about
older bios laptops tho. Running intel dual core 1.6ghz... So the
application of these (ACPI? APM?) are handed off to OS software
layer? Kernel module or whatever? If so (pls correct where I'm off)
how to use equivalent control of settings from CL or tools? Given the
sig change of stable state that Jame's refers to, it would be helpful
to document this stuff somewhere under the "realtime Linux audio
tweaks". The 32/2 with stability over USB2 would be a big deal in my
case. I've not been able to come within screaming distance of that
result.
It might not be possible :) Not that I know for sure, but I'd imagine
that the best you can do on older cpus is to use the performance
governor. But do try the /dev/cpu_dma_latency trick, by running "sudo
cyclictest", maybe it's beneficial on your hardware too.
I just dug the VAIO out of the gig rig so I can look
at the FW TI
chip and it's operating limitations.
You probably ought to give the interrupt handler servicing the FW
interface the highest priority, and then follow the same instructions I
gave in a previous post for setting up realtime priorities.
--
Joakim