Therefore, if you have concurrent memory allocations performed during this operation, you will encounter CMEMTHREAD waits on this memory object. This usually happens when you submit lots of queries that require compilation or recompilation.
This hotfix changes the global memory object to be partitioned so that concurrent memory allocations that use the System Table cache will not encounter contention and the CMEMTHREAD waits.
For more information about the similar issue, see KB 3026082: FIX: SOS_CACHESTORE spinlock contention on system table rowset cache causes high CPU usage in SQL Server 2012 or 2014 .
Article ID: 3074425 - Last Review: Aug 17, 2015 - Revision: 1