I’m a little late to the party but here’s an awesome new VMware fling you’ll want to take a look at. It’s essentially a Java front end for the esxtop and resxtop utilities used to, amongst other things, diagnose performance issues within your VMware environment.
Head to http://labs.vmware.com/flings/visualesxtop and download the zip file. Once downloaded, unzip and then rename the unzipped file to include the .tar extension. You’ll need something like 7zip to then untar that file and eventually you’ll get to the goods. Double click on the visualEsxtop.bat file and you’ll be presented with the login box, enter the IP address of the host you want to investigate, enter your credentials and you’ll be presented with the initial screen.
ESXtop is still something of an undiscovered entity to me, I’m able to diagnose the usual issues so I’m not the man to offer any sage advice. However, if you’re after some tips to get you going then check out Duncan Epping’s post on Visual ESXtop over at Yellow Bricks.
Oh and not to forget our Mac friends, here’s a guide to getting things going in OSX by William Lam.