For what seems like forever (or at least since April 29th, 2005), the crew at iSlayer have leveraged their obsession with system performance and statistics and provided us with arguably the best darn donationware iStat widgets on the block. For a little while now, they've been teasing their fellow stat enthusiasts with screenshots on the iSlayer blog of their latest creation, iStat menus, which is currently in a private beta. As you might guess, iStat menus is an app (installed and managed as a System Preferences pane) that will display your vital system stats in the menubar, complete with a thoroughly customizable set of options for displaying just the information you want to know.
Thankfully, the iSlayer folks were kind enough to give me a copy of the beta, along with permission to post thoughts and a screenshot gallery for your perusal. While I've been trying iStat menus out, I've also been asking the crew a few questions surrounding how it stacks up against iStat pro and nano, especially in terms of performance. One catch with the way iStat menus runs is that it doesn't create its own separate process that can be monitored in Activity Monitor (or, I assume by relation, the Terminal). Instead, each menu item monitor you activate runs as a Menu Extra which lumps itself into the SystemUIServer thread, so the only way Marc Edwards at iSlayer recommended I could compare iStat menu's performance against my long-time favorite iStat pro is simply to watch that thread before and after enabling iStat menu's items.