On Sun, 16 Mar 2008 10:49:24 -0500 Rick Fochtman <[EMAIL PROTECTED]> wrote:
:>-------------------<snip>----------------- :>> I'll accept some of the responsibility for your confusion, Walt. I :>> first used the words "5% decrease in utilization" to describe how many :>> fewer resources the operating system was expected to use. I see now :>> how that phrase might be misinterpreted. (Ted's comments just added to :>> the confusion.) A better, non-ambiguous, wording choice would have :>> been to say "5% performance improvement" like Cheryl did. (I guess :>> that's why they pay her the "big bucks". :-) :>-------------------<unsnip>----------------- :>I can't help but stick my oar in here. :>It appears that comparisons and branches are being combined into single :>instructions on the z/10 processor. I would estimate that when z/OS, or :>its successor, requires a minimum of a z/10 processor, we'll see further :>improvements in operating system performance, and perhaps a slight :>improvement in storage utilization. While older version of z/os (or any :>other system) will PROBABLY continue to run, later versions will utilize :>these new instructions heavily, with improvements as each component is :>updated. Considering the number of compares followed by branches that :>must be present in any operating systems, these new instructions MUST :>represent performance improvements. But until application code starts using, i.e., the compilers generate z10 code, the performance improvement of just the supervisor will not make THAT big a deal. -- Binyamin Dissen <[EMAIL PROTECTED]> http://www.dissensoftware.com Director, Dissen Software, Bar & Grill - Israel Should you use the mailblocks package and expect a response from me, you should preauthorize the dissensoftware.com domain. I very rarely bother responding to challenge/response systems, especially those from irresponsible companies. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
