On 12/21/07, Gijs <info@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote: > And yes, it is safe to do. Safe, but not recommended. I can't see any real-world use for this. The only practical use of which I'm aware is if you are doing I/O benchmarking and you want to test the actual speed of the I/O, as opposed to the efficacy of the pagecache. On a normal system, the pagecache dramatically increases performance by not having to go to disk for filesystem data or metadata, depending on what cache you're looking at. For a detailed explanation of the values, check out my blog at http://jons-thoughts.blogspot.com/2007/09/tip-of-day-dropcaches.html
