Over at John McCalpin’s Blog, “Dr. Bandwidth” has posted an in-depth look at memory-mapped IO (MMIO). For tightly-coupled acceleration, it would be nice to have the option of having the processor ...

File access is a resource-intensive operation. Accessing a file from the disk for an application is a time-consuming operation, and accessing data from the primary memory is always faster. So, what if ...

A process may map files to its address space, thereby creating a 1-to-1 equivalence between the files’ data and its corresponding memory-mapped region. Memory mapping has several uses: Dynamic loading ...