Window7 optimization: readyboost summary

windows vista above system carries readyboost function, a layer of cache is established between physical memory and virtual memory, the cache page exchange size is 4k-512k, the random access speed of small files is much faster than Mechanical disks are faster, so you can feel a lot of performance when you need to use virtual memory.
And if the physical memory space is large enough, is the readyboost useless? no. When the physical memory is large enough, it just indicates that during the running of the program, there may be no call to virtual memory, which is related to the running third-party software. The core function of Windows is to use the paging file system, and turning off the virtual memory is equivalent to closing the paging file system, and the third-party software that needs virtual memory cannot run normally. If the program needs to use the paging file system, then even if the physical memory is large, the readyboost still has the effect of accelerating the system, but the space for improvement is not big. If the computer disk is a solid state disk, its access speed is much better than the external flash disk. At this time, the readyboost will not have the effect of accelerating the system, but will make the system slower.