On 12/12/2012 03:51 PM, Chris Knadle wrote:
On Wednesday, December 12, 2012 14:34:33, Maxim Shkurygin wrote:
I used a minimal debian environment with a precompiled RT kernel for a
robotics project. However, I really don't see why you would need a
real time OS outside of robotics.
More on RT Linux community: https://rt.wiki.kernel.org/index.php/Main_Page
Right... Real Time (RT) kernels are used for only specific situations where
very low latency in the kernel response is necessary -- most likely relating
to an interrupt-driven device driver / module.
Occasionally I hear this come up in relation to DJing, because the typical
latency of aduio in a typical Linux distro is a bit too high for some of the
thigns DJs typically do.
low latency for live audio is something I have been investigating.
I have experimented with low latency kernel (ubuntu) and it has worked
better then with windows XP and asio drivers.
Having sufficient low latency will also depend on hardware and other
software (not just OS). I might have to use windows because of closed
software.
As for a Linux distribution, I think minimal Ubuntu could work well. It
has been a while since I did a minimal CD install but IIRC it only
installs the bare minimum.
https://help.ubuntu.com/community/Installation/MinimalCD#A64-bit_PC_.28amd64.2C_x86_64.29
IIRC, Ubuntu server also has a minimal install option.
http://askubuntu.com/questions/57336/minimal-system-or-minimal-virtual-machine-on-install
kxstudio has repositories for Low Latency and Real Time kernels.
kxstudio site http://kxstudio.sourceforge.net/
kxstudio PPA https://launchpad.net/~kxstudio-team/+archive/kernel/
BTW, kxstudio is awesome. There are not many people in the IRC channel
but they are quite friendly and knowledgeable.
-Orion
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