Hello, I wonder what kind of data usually go into the CPU cache. Generally the size of the cache is in kB or MB in contrast with RAM which is in GB. I understand that the cpu accesses the RAM much slower than the cache so it's better for it to find the data in the cache instead of in the RAM. But the cache is so small in size I wonder how it can be that useful. Is it possible to store a small .txt file into the cache? If so, accessing the .txt should be much faster than accessing it if it was into the RAM; is there an easy way to benchmark the time it takes to "read" this .txt file and thus determine whether the file is indeed into the cache? Thank you.