In <listserv%[email protected]>, on 08/12/2010
at 01:09 AM, Supra Uche <[email protected]> said:
>I think that new instructions run applications more efficiently than
>the previous ones.
Not quite. New code *may* run faster if it uses the new instructions;
old code will not be affected. If the operating system or libraries
use the new instructions in a fashion that makes them faster then all
applications may benefit.
>1000 MIPS
Meaningless indicator of processing speed. There is no MIPS for a
processor, only for a specific instruction stream on the processor. An
MVC with a 1-byte length will run faster than an MVC with a 256 byte
length, but 256 of the former do the same useful work as one of the
latter.
>If i dont upgrade my z/OS, will i able to
>get the benefit of new instructions?
Not unless you have code testing for their presence.
--
Shmuel (Seymour J.) Metz, SysProg and JOAT
ISO position; see <http://patriot.net/~shmuel/resume/brief.html>
We don't care. We don't have to care, we're Congress.
(S877: The Shut up and Eat Your spam act of 2003)
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