>>>>> "MM" == Mike Matrigali <[EMAIL PROTECTED]> writes:
MM> I believe Derby gives the OS plenty of opportunity to do parallel I/O
MM> if there are multiple users in the database. Every thread can possibly
MM> be doing I/O at a single time. There may be room to improve in the case
MM> of checkpoint, but not sure how important that is.
See my recent email on Derby I/O issues. Only one thread may
read/write a page from/to a file (table) at a time since readPage and
writePage synchronize their accesses on the RAFContainer object.
--
Øystein
