Messages in this thread | | | Date | Thu, 15 Jul 1999 20:23:22 +0200 | From | Jamie Lokier <> | Subject | Re: File hinting, and a new file flag? |
| |
Tom M. Kroeger wrote: > The summary of my recent work (HotOS VII) showed that just by tracking > what was opened after the last access to each file, we can correctly tell > you 72% of the time which file will be opened next. I'm currently > implementing this in Linux and at the last Usenix presented a wips > that showed preliminary results (reducing read times by 2/3).
An alternative would be to make a Markov chain of block->block accesses for finer-grained prefetch. I'm thinking this might be good for executables paging in when they start. It could also be used for "access driven defragmentation". Any work done on these?
thanks, -- Jamie
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |