摘要：
aka the title. 阅读全文
摘要：
All modern processors use page-based mechanisms to translate the user-space processes virtual addresses into physical addresses for RAM. The pages are commonly 4KB in size and the processor can hold a limited number of virtual-to-physical address mappings in the Translation Lookaside Buffers (TLB). The number TLB entries ranges from tens to hundreds of mappings. This limits a processor to a fewmegabytes of memory it can address without changing the TLB entries. When a virtual-to-physical address 阅读全文