GNU OS suggestion -- memory "advice"

Anton Rang rang at cpsin3.cps.msu.edu
Wed Jun 7 08:55:18 AEST 1989


In article <3496 at orca.WV.TEK.COM> andrew at frip.WV.TEK.COM (Andrew Klossner) writes:
>  [ stuff about row-major vs. column-major order ]
>
>Well, sure; in column-major order (assuming a non-Fortran language),
>the program is stepping to a new page much more often than in row-major
>order.  If a single row is a page or more in size, column-major order
>will touch a new page with every single index iteration.  No amount of
>memory advice to the OS can mitigate the result of this pathological
>behavior.

  How about asking for a LIFO paging strategy on that section of memory?

+---------------------------+------------------------+
| Anton Rang (grad student) | "VMS Forever!"         |
| Michigan State University | rang at cpswh.cps.msu.edu |
+---------------------------+------------------------+



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