On Fri, 2004-11-05 at 06:20, Steinar H. Gunderson wrote: > You mean, like, open(filename, O_DIRECT)? :-) This disables readahead (at least on Linux), which is certainly not we want: for the very case where we don't want to keep the data in cache for a while (sequential scans, VACUUM), we also want aggressive readahead. -Neil
