In IBM's mainframe OS$,$ OS$/390,$ one of the maior modules in the kernel is the SystemKesource Manager. This module is responsible for the allocation of resources amongaddress spaces $($processes$).$ The SR$.$M gives OS$/390$ a degree of sophistication uniqueamong operating systems. No other mainframe OS$,$ and certainly no other type of $$S$,$can match the functions performed by SRM$.$ The concept of resource includes proces$-$sor, real memory, and I$/$O channels. SRM accumulates statistics pertaining to utilizationof processor, channel, and various key data structures. Its purpose is to provide optimumperformance based on pertormance monitoring and analysis. The installation setsforth vanious pertormance objectives, and these serve as guidance to the SKM$,$ whichdunamicalv modifies instalation and iob performance charactenslics based on systemutilization. In turn, the SRM provides reports that enable the trained operator to refinethe configuration and parameter settings to improve user service.This problem concerns one example of SRM activity. Real memory is divideoInto equal sized blocks caled frames or which there mav be manv thousands sachframe can hold a block of virtual memory referred to as a page. SR$.$M receives controapproximately $20$ times per second and inspects cach and every page frame, ur tnepage has not veen relerenced or changed, a counter is incremented by $1.$ Over time,RM averages these numbers to determine the average number of scconds that apage frame in the system goes untouched. What might be the purpose of this and whataction might SRM take?