If the CCMS Alert Monitor or Transaction ST06 (see Monitoring the Status of the R/3 System) displays a high paging rate for the operating system, decrease the size of the roll and paging buffers (only Windows NT and UNIX). In the profile management of the CCMS, set the profile parameters rdisp/ROLL_SHM and rdisp/PG_SHM to 0. You must change the profiles used by the R/3 application servers on the relevant host system.
If free memory is available even during heavy system usage, or if there is only low paging activity, you can increase the size of the roll and paging buffers. This decreases the accesses to the hard disk caused by rolling and paging.
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