"Scott Carey" <scott@xxxxxxxxxxxxxxxxx> writes: > DTrace is available now on MacOSX, Solaris 10, OpenSolaris, and FreeBSD. > Linux however is still in the dark ages when it comes to system monitoring, > especially with I/O. Oh, after poking around a bit, I should note that some of my Red Hat compatriots think that "systemtap" is the long-term Linux answer here. I know zip about it myself, but it's something to read up on if you are looking for better performance monitoring on Linux. regards, tom lane