An Evening With Bonnie · Like almost everyone, I have a long list of things that I regret not having done, and mine includes writing a Unix filesystem. So instead, I measure ’em, with the help of my old friend Bonnie. I just spent some time addressing the question: “How much does FileVault slow down a Macintosh?” And turned up a couple other interesting results, too, including a fairly startling three-way OS X/Linux/Solaris comparison. [Update: Many readers write on the subject of Linux and hdparm(8).] ...