On Wed, 22 May 2019, Chris Morley wrote:
Date: Wed, 22 May 2019 18:20:11 +0000
From: Chris Morley <[email protected]>
Reply-To: EMC developers <[email protected]>
To: EMC developers <[email protected]>
Subject: Re: [Emc-developers] Release Platforms
From: andy pugh <[email protected]>
Sent: May 22, 2019 12:31 PM
To: EMC developers
Subject: [Emc-developers] Release Platforms
We have a problem...
We need a 2.7 LiveCD that works.
We will need a 2.8 LiveCD that works.
Thanks for tackling this Andy.
I would not give up the option for RTAI lightly. (I saw some talk on IRC about
removing RTAI from the make file to simplify it)
based on the forum lots of people start with/ use the parport. (so some how
they are getting it to work or using old systems)
AFAIK the RT kernel doesn't give good enough latency for parports.
Preempt-RT _can_ have good enough latency for parallel ports but the hardware
with good Preempt-RT latency is different from hardware with good RTAI latency
In general my experience is that faster CPUs often have better Preempt-RT
latency (often better than RTAI) but slower ( often passively cooled) CPUs
are much worse on Preempt-RT
As far as RTAI goes, Has anyone tried Bari's suggestion of NTULINUX/RTAI?
https://github.com/NTULINUX/RTAI
Thinking further ahead: What OS and realtime system should we plan to
release 2.8 on?
I will mention we were given permission to respin Mint:
https://forums.linuxmint.com/viewtopic.php?f=18&t=272185&p=1489079#p1489079
I think Mint is far more user friendly then Debian
I wonder if machinekit has had success with using RTAI still?
Chris M
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