On Wed, Feb 9, 2011 at 1:10 PM, Ivan Warren <
ivan@...> wrote:
>
>
> On 2/9/2011 5:56 AM, hec.tor1 wrote:
> > Ivan, thanks for taking the time to respond to my questions. You are of
> course correct that one wants portable code, and the s390/x port allows one
> to test it against this architecture running zLinux...
> >
> > Perhaps my question is not understandable. The bottom line is that I want
> to know what else I can do with my installed emulated s390 linux, other than
> test/run the normal linux code, and learn about the s390/zArchitecture.
> >
> > Am I missing anything?
> >
> > As far as speed goes, it's of course not as fast as running programs
> natively, so I am inclined to do most of my computing in the i386 linux.
> However, if there were some advantage for me of runnning some software in
> s390 linux, I would want to take advantage of that. I hope my question
> becomes more clear.
> >
> >>
>
> There is no architectural advantage of running your code under z/Linux
> vs linux on x86 or x86_64 'or ppc, ppc64 - arm - or whatever)
>
> The only advantage when running on an IBM implementation (the only one
> existing right now besides hercules) is taking advantage of the
> underlying hardware redundancy & failproof build..
>
>
> --Ivan
>
Actually, there is an advantage in a certain limited set of circumstances.
(Unlikely as they may be)
Pretend you're running a website or FTP machine and someone manages to
inject code into your code by stack-smashing or something. It would be
EXTREMELY unlikely that the injected code would be able to run on the
emulated Z/390.
Cheers
Rich
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