多选题Which two options describe how MySQL Server allocates memory?（）AThread memory is pre-allocated up to thread_cache_size for performanceBEach connection may have its own per-thread memory allocationsCGlobal memory resources are allocated at server startu
题目
多选题
Which two options describe how MySQL Server allocates memory?（）
A
Thread memory is pre-allocated up to thread_cache_size for performance
B
Each connection may have its own per-thread memory allocations
C
Global memory resources are allocated at server startup
D
Each thread allocates memory from a global pool