Problem:
How do you calculate the value of the "Cache Size" in the Enterprise Link configuration page?
Resolution:
The cache setting in EnterpriseLink is very simple. It is a single number which represents the number of screens or pages that are held in memory. So, if you have 150 pages and 200 screens across all the EL projects, a number of "200" would guarantee that all pages and screens are held in memory. Usually, an EnterpriseLink project follows an 80-20 access pattern: 20% of the pages are accessed 80% of the time. The remaining 80% of the pages are accessed the remainder of the time. This means that you don't need to have a cache size greater than the number of pages. Since EnterpriseLink uses a least-recently-used algorithm for cache replacement, only the most used pages and screens will remain in the cache. Setting the cache size to one-half the number of screens would give you a very high "cache hit ratio" (displayed in the Performance Monitor web page).
#Rumba
#EnterpriseLink
