…ist of commands that can't be called when we are low on memory, this command was added in the past for a stupid error.
…should or not serve stale data
…om the queue)
…to everysec, added a prefix character for DEBUG logs
…ues between the background saving processes and IO threads
…gging. Refactored a bit maxmemory. When virtual memory is short in RAM free the objects freelist as well as swapping things out.
… avoid the very costly memset initialization. Note that with this option set valgrind will output some false positive about lzf_c.c