[Info-vax] VMS x86 performance ?

[IanD]

On Saturday, October 31, 2020 at 7:01:28 AM UTC+11, Dave Froble wrote:
> On 10/30/2020 2:07 PM, Simon Clubley wrote:
> > On 2020-10-30, Grant Taylor <gtaylor at tnetconsulting.net> wrote:
> >> On 10/30/20 8:48 AM, Arne Vajhøj wrote:
> >>> absolute performance on VMS x86-64 some VM expected to be typical vs VMS
> >>> Alpha some typical 15-20 year old box
> >>>
> >>> absolute performance on VMS x86-64 some VM expected to be typical vs VMS
> >>> Itanium some typical 5-10 year old box
> >>
> >> These two tests seem to fall back to VUPs to me.
> >>
> >
> > Compute performance is one part of it. I/O performance is another
> > thing to consider.
> >
> > Simon.
> >
> 
> This concern about performance seems unreasonable to me.
> 
> Yes, faster HW will be faster.
> 
> But the port to x86 was never about performance.  It was to keep VMS 
> usable in the future.  Why?  Because everything on which VMS ran, with 
> the exception of emulators, is either dead, or in one case sinking.
> 
> People still using VMS are doing so for a reason, and x86 VMS offers 
> them a way forward.
> 
> -- 
> David Froble                       Tel: 724-529-0450
> Dave Froble Enterprises, Inc.      E-Mail: davef at tsoft-inc.com
> DFE Ultralights, Inc.
> 170 Grimplin Road
> Vanderbilt, PA  15486

Itanium was about performance and marketed as such along with the latest i6 offerings

x86 is as much about performance as it is getting onto modern hardware mainly for all the updated and much improved performance aspects it gives one access to. Faster controllers, network adapters, better caching etc.
I would say a huge aspect of why companies move to newer hardware is for the performance component

I work in a place with 10's of thousands of servers, performance is most certainly a requirement to moving forward for any offering, doing more with less is the name of the game, reducing even the number of cpu's and hence cost is constantly under review

When the whole world around you is moving forward in terms of performance, you don't want to be the slowest in the race or you'll show up as the bottleneck and then next thing you know, your system is earmarked for decommissioning!

Performance is important as is risk mitigation, even for VMS