we use SQL2008R2 and set max memory usage of SQL2008 to 4GB (Total 8GB).
After running FIM server, memory usage of SQL2008 reached 4GB.
And I heard from Third vendor that it is recommeded to restart OS to release memory usage of SQL2008 increase the performance of FIM.
If SQL2008 use memory in some operation and it is done , SQL2008 do not release memory usage ? It really need OS restart to regain Server Performance ??