[Info-vax] Autogen

[John Reagan]

On Saturday, February 3, 2018 at 7:41:50 AM UTC-5, Marc Van Dyck wrote:
> Marc Van Dyck wrote on 1/02/2018 :
> > In the past, memory was scarce, and it was important to maximize its
> > usage. In order to achieve that, several system parameters, and the
> > autogen procedure, were invented to tailor the systems to specific
> > user and application needs.
> >
> > Today, memory is cheap and capacity usually not an issue anymore.
> > Shortages can be much more easily solved by adding memory than tuning
> > systems. As a consequence, one hears much less often about autogen.com
> > and modparams.dat.
> >
> > So my question : is this procedure still uptodate ? Has it been modified
> > to take in account the much larger memory capacities that we can see
> > today (our production systems have 192 GB) ? Can we still trust
> > the 'optimal' parameter values that it computes ? And should we still
> > autogen with feedback systems as often as we did in the past ?
> >
> > Thank you,
> > Marc.
> 
> Thanks for the answers. We have just done what was mentioned, cleaning
> modparams from all the useless historical stuff. We've compared
> parameters before and after autogen runs and it did not change much.
> 
> -- 
> Marc Van Dyck

A long-time VMS developer once told me "anybody with a MODPARAMS.DAT longer than 10 lines is either a genius or a fool"