> On 23 Jun 2006, at 14:16, Dennis Cote wrote: > > Most of SQLite's disk I/O is actually going to the memory used for > > the operating system's disk cache, not directly to the disk. Hence > > its speed is not much different when using a disk based database > > than a memory based database. I'm still a little surprised that a > > disk based database is actually slightly faster than a memory based > > one, but that just means that SQLite's memory based page I/O is > > less optimized than the OS's file I/O libraries.
I think some other factor is at play here. SQLite 2.x's memory databases are still twice as fast at batch inserts than either 3.x's disk-based databases or 2.x's disk-based databases when the DB size is less than physical machine memory. Your analysis: http://www.mail-archive.com/sqlite-users%40sqlite.org/msg14937.html corresponding ticket: http://www.sqlite.org/cvstrac/tktview?tn=1790 __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
