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<== Date ==> <== Thread ==>

Subject: Re: what are your definitions of softIOC and soft record?
From: Ralph Lange <Ralph.Lange@gmx.de>
To: EPICS Techtalk <tech-talk@aps.anl.gov>
Date: Fri, 26 Oct 2012 09:24:14 +0200
On 25.10.2012 20:04, Jack Smith wrote:
> Wow, what diverse views! Thank all for sharing your thoughts.
>
> Ernest is right. The original term "IOC" covers every case. The term
> "softIOC" seems to make simple thing complicated.
>
> Toast,
>
> JS
>

Here's one more:

The term "soft IOC" originated with the introduction of the OSI library
layer in EPICS Base 3.14.
Before that, an IOC would always run on a dedicated, hard real-time
system. After that, you could run multiple IOCs as processes on a
full-size OS, only allowing for soft real-time in most cases.

So for me, the difference is the not the hardware connection, but the
platform an IOC runs on.
If it runs on a machine that is able to run multiple IOCs, I would call
it a soft IOC. There are grey-zone cases, I know.
I often use the IOC console as a hint. If the last inch is through a
serial line, it probably is a hard IOC. If it is solely through a file
descriptor, it probably is a soft IOC.

But that's just my universe....
~Ralph

References:
what are your definitions of softIOC and soft record? Jack Smith
Re: what are your definitions of softIOC and soft record? Benjamin Franksen
RE: what are your definitions of softIOC and soft record? Hu, Yong
Re: what are your definitions of softIOC and soft record? Ernest L. Williams Jr.
Re: what are your definitions of softIOC and soft record? Jack Smith

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