* Fix DBSIZE to really do something interesting
* Add a DEBUG command to check if an entry is or not in memory currently
+* dscache.c near 236, kobj = createStringObject... we could use static obj.
+
APPEND ONLY FILE
================
OPTIMIZATIONS
=============
+* Avoid COW due to incrementing the dict iterators counter.
* SORT: Don't copy the list into a vector when BY argument is constant.
* Write the hash table size of every db in the dump, so that Redis can resize the hash table just one time when loading a big DB.
* Read-only mode for slaves.