Why is 8gb of my RAM cached?
Windows caches programs/files in memory so that they can be accessed quicker. The longer your computer is on the bigger the cache should get. If you open a program that needs more ram than you have free, it will simply re-allocate some from the cached pool, nothing to worry about.
What is a good size cache?
The higher the demand from these factors, the larger the cache needs to be to maintain good performance. Disk caches smaller than 10 MB do not generally perform well. Machines serving multiple users usually perform better with a cache of at least 60 to 70 MB.
Is cached RAM good?
Since accessing RAM is significantly faster than accessing other media like hard disk drives or networks, caching helps applications run faster due to faster access to data. Caching is especially efficient when the application exhibits a common pattern in which it repeatedly accesses data that was previously accessed.
What is a normal cache size?
The chunks of memory handled by the cache are called cache lines. The size of these chunks is called the cache line size. Common cache line sizes are 32, 64 and 128 bytes. A cache can only hold a limited number of lines, determined by the cache size.