[Info-vax] Autogen

[Ian Miller]

On Thursday, February 1, 2018 at 4:34:16 PM UTC, Marc Van Dyck wrote:
> 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.
> 
> -- 
> Marc Van Dyck

does a decent job of getting the basics right especially if you clear the historical crud from MODPARAMS.DAT first. Also handy for fixing misguided former employees 'tuning'