On Thu, Jun 2, 2011 at 11:39 PM, Jason Rutherglen <jason.rutherg...@gmail.com> wrote: >> MMAP changes nothing: as its not a sequential pattern.. and things like >> asking for a term range would be extra bad. > > Why's that? If the associated pages are in the system IO cache it'd be fine. >
because of how the datastructure is laid out. if you use mmap, instead of lots of seeks, it will simply be lots of page faults instead. --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org
