13097 improve VM tunables for modern systems (fix mismerge)

@@ -128,11 +128,11 @@
  * DISKRPM is used to estimate the number of paging i/o operations
  * which one can expect from a single disk controller.
  *
  * XXX - The system doesn't account for multiple swap devices.
  */
-#define DISKRPM         60
+#define DISKRPM         600
 
 /*
  * The maximum value for handspreadpages which is the the distance
  * between the two clock hands in pages. This is only used when the page
  * scanner is first started.