3 ms·
I would be willing to bet a fair amount of money that all of those fancy heuristics would be easily beaten in almost every case by a simple adaptive cache which
by georgemcbay 14y ago
I would be willing to bet a fair amount of money that all of those fancy heuristics would be easily beaten in almost every case by a simple adaptive cache which was based on how often and recently sectors on the disk were accessed. The disk drive knows more about the actual data layout on the platters than the OS does, and that's what really matters here.
- seiji 14y agoOver time, you are probably right. I think an OS-driven approach could have quicker time-to-steady-state resolution though. If you have a large document (a few hundred MB) in an editor, the HD may SSDize parts of the document over and over again until the entire document is moved/cached. An OS-driven approach could move the entire document in one go.