Solution : https://service.sap.com/sap/support/notes/854233 (SAP Service marketplace login required)
Key words : 
start transaction lc10 -> 'livecache monitoring' 2, 'problem analysis' --> 'performance'--> 'class container', memory requirement increases steadily, livecache increases slowly, dp time series, daily forecast run, increased memory requirement, negative side effects, lca build means, lca build earlier
Related Notes : 
       
| 936939 | This note details corrections/improvements in the LCA-Build | 
| 884503 | |
| 874372 | SCM 4.1 LCA Build 09 | 
| 853981 | SCM 4.0 LCA Build 18 | 
| 846430 | SCM 4.1 LCA-Build 08 |