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From: b.jons...@vaxjo.mail.telia.com (Borje Jonsson)
Subject: How good is iBCS2?
Date: 1996/02/01
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Hi,

What kind of binaries for SCO Unix (ODT 5) can i execute on my
Linux box under iBCS2 emulation?
Compilers like Microfocus Cobol?
SQL Retreiver?
DBMS as Ingres or Imformix?

Many thanks in advance
Borje Jonsson

From: Mike Jagdis <ja...@purplet.demon.co.uk>
Subject: How good is iBCS2?
Date: 1996/02/01
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* In message <4er76p$...@d1o3.telia.com>, Borje Jonsson said:

BJ> What kind of binaries for SCO Unix (ODT 5) can i execute on
BJ> my Linux box under iBCS2 emulation?
BJ> Compilers like Microfocus Cobol?
BJ> SQL Retreiver?
BJ> DBMS as Ingres or Imformix?

Put simply, yes. However you will need the latest (February) release to run 
OpenServer 5 ELF binaries (and a 1.3.54 or later kernel). The SCO ELF 
support is very new. However most SCO programs are still COFF (since SCO 
didn't have ELF before OS5) which are fine.

                                Mike 

From: en...@numerik.fb6.uni-siegen.de (Michael Engel)
Subject: Re: How good is iBCS2?
Date: 1996/02/02
Message-ID: <4esnf1$dke@si-nic.hrz.uni-siegen.de>#1/1
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organization: Computer Center, University of Siegen, Germany
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Borje Jonsson (b.jons...@vaxjo.mail.telia.com) wrote:
: Hi,

: What kind of binaries for SCO Unix (ODT 5) can i execute on my
: Linux box under iBCS2 emulation?

CAUTION ! SCO has switched to ELF binary format in ODT5. I'm not sure if 
anyone has tested SCO ELF binaries under iBCS2.

Since most programs offered for SCO are still 3.2.4.x COFF versions, you 
won't have too much problems, though.

: Compilers like Microfocus Cobol?
: SQL Retreiver?
: DBMS as Ingres or Imformix?

I know of the following working products:
- Informix SE/4GL/RDS/SQL 4.x
- Informix Online 5.x was reported to work
- WordPerfect for SCO
- Uniplex

There are surely lots more...

: Many thanks in advance
: Borje Jonsson

Hope this helps,
regards,
	Michael Engel	(en...@numerik.fb6.uni-siegen.de)

From: Mike Jagdis <ja...@purplet.demon.co.uk>
Subject: Re: How good is iBCS2?
Date: 1996/02/04
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* In message <4esnf1$...@si-nic.hrz.uni-siegen.de>, Michael Engel said:

ME> CAUTION ! SCO has switched to ELF binary format in ODT5. I'm
ME> not sure if anyone has tested SCO ELF binaries under iBCS2.

The next release of iBCS (due a couple of days ago, sorry) can do SCO ELF as 
well.

                                Mike  

From: Juergen Sahlberg <sahlb...@fe.uni-bremen.de>
Subject: Re: How good is iBCS2?
Date: 1996/02/06
Message-ID: <3117660B.7E1EF420@fe.uni-bremen.de>#1/1
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Mike Jagdis wrote:
> 
> * In message <4er76p$...@d1o3.telia.com>, Borje Jonsson said:
> 
> BJ> What kind of binaries for SCO Unix (ODT 5) can i execute on
> BJ> my Linux box under iBCS2 emulation?
> BJ> Compilers like Microfocus Cobol?
> BJ> SQL Retreiver?
> BJ> DBMS as Ingres or Imformix?
> 
> Put simply, yes. However you will need the latest (February) release to run
> OpenServer 5 ELF binaries (and a 1.3.54 or later kernel).

Hello Mike,

The latest (February) release of what ?
Of Microfocus Cobol, SQL Retreiver, Ingres, Informix, ... :-)

If you think about the latest release of your (invaluable) iBCS2, then would
you mind sharing it with the rest of the community in the near future?
Or do you still think about commercial releases of this package?

FYI: Though not officially offered (or even supported), the current public
     SCO-ODT release of Simple++ (one of the leading discrete event
     simulation packages) does work under iBCS2 like a charm. As it appeares
     to be faster than under SCO-ODT (on the same machine), I decided to drop
     SCO completely from my system. And even better news: Under Linux/iBCS2
     it is about twice as fast on a Pentium-PC (90MHz,32MB RAM) than the
     current SunOS-4.x release on SunSparc5 (100MHz, 32MB).
   
Great work, Mike & Co., carry on !
Greetings from Beck'sTown, Germany,
 Juergen

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From: Mike Jagdis <ja...@purplet.demon.co.uk>
Subject: Re: How good is iBCS2?
Date: 1996/02/06
Message-ID: <949.311921FC@purplet.demon.co.uk>#1/1
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* In message <3117660B.7E1EF...@fe.uni-bremen.de>, Juergen Sahlberg said:

JS> If you think about the latest release of your (invaluable)
JS> iBCS2, then would
JS> you mind sharing it with the rest of the community in the
JS> near future?

I'm trying. The throughput from here to tsx-11 is currently pathetic. I 
could type the hex quicker :-(.

JS> As it appeares to be faster than under SCO-ODT (on the same machine),

Last time I did any benchmarking, Linux+iBCS seemed to have the same system 
call speed as a SCO machine of twice the speed (roughly). Of course, this is 
only a very, very small percentage of most program's execution times. The 
main benefit is Linux' dynamic buffer cache that tends to hit disk far less 
often than SCO. The greatest loss is the need for bloaty static binaries or 
foreign shared libraries. In most cases the benefits win however :-).

                                Mike  

From: au...@xylo.owl.de (Aurel Balmosan)
Subject: Re: How good is iBCS2?
Date: 1996/02/10
Message-ID: <DMKIK5.9p@xylo.owl.de>#1/1
X-Deja-AN: 139017964
references: <949.311921FC@purplet.demon.co.uk>
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Mike Jagdis (ja...@purplet.demon.co.uk) wrote:
: Last time I did any benchmarking, Linux+iBCS seemed to have the same system 
: call speed as a SCO machine of twice the speed (roughly). Of course, this is 
: only a very, very small percentage of most program's execution times. The 
: main benefit is Linux' dynamic buffer cache that tends to hit disk far less 
: often than SCO. The greatest loss is the need for bloaty static binaries or 
: foreign shared libraries. In most cases the benefits win however :-).

What about kernel drivers from SCO like drivers for a GDT3010 SCSI Cache
Controller. Will it be possible to load them as modules into the linux
kernel. I have heard that there is a defined interface between the
kernel drivers and the SCO-kernel, so it should be possible. Is any
one working on it? It would be a great advantage over SCO because
nearly every hardware has a driver for SCO. 

But because I know how stable SCO is, if ibcs2 will provide a interface
for SCO kernel drivers they should be totally separated from the normal
linux kernel! (May be as a task)


	Aurel Balmosan

-- 

----------------------------------------------------------------
Aurel Balmosan		au...@xylo.owl.de

From: Mike Jagdis <ja...@purplet.demon.co.uk>
Subject: Re: How good is iBCS2?
Date: 1996/02/12
Message-ID: <955.31210EA3@purplet.demon.co.uk>#1/1
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* In message <DMKIK5...@xylo.owl.de>, Aurel Balmosan said:

AB> What about kernel drivers from SCO like drivers for a
AB> GDT3010 SCSI Cache
AB> Controller. Will it be possible to load them as modules into
AB> the linux
AB> kernel. I have heard that there is a defined interface
AB> between the
AB> kernel drivers and the SCO-kernel, so it should be possible.

Unlikely to happen. Although the interface is defined there are underlying 
assumptions about how the kernel works and what its requirements are. How 
easy it would be to translate these I don't know.

  One of the aims of the LiS project was to be able to make use of SVR4 
STREAMS modules but, to the best of my knowledge, that project has died - or 
at least entered indefinite suspended animation :-).

  Anyway, in general I suspect you would be better off writing a driver from 
scratch.

                                Mike

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