On Mon, 9 Sep 2002, Bruce Momjian wrote: > What do other people get for this value?
With your new script, with a 1.5 GHz Athlon, 512 MB RAM, and a nice fast IBM 7200 RPM IDE disk, I get random_page_cost = 0.933333. > One flaw in this test is that it randomly reads blocks from different > files rather than randomly reading from the same file. Do people have a > suggestion on how to correct this? Does it matter? >From my quick glance, it also does a lot of work work to read each block, including forking off serveral other programs. This would tend to push up the cost of a random read. You might want to look at modifying the randread program (http://randread.sourceforge.net) to do what you want.... cjs -- Curt Sampson <[EMAIL PROTECTED]> +81 90 7737 2974 http://www.netbsd.org Don't you know, in this new Dark Age, we're all light. --XTC ---------------------------(end of broadcast)--------------------------- TIP 2: you can get off all lists at once with the unregister command (send "unregister YourEmailAddressHere" to [EMAIL PROTECTED])
