

If the figure in parentheses is running positive and your hard drive is constantly being used (thrashing) then you need more physical RAM. Version 1.3 of MenuMeters is a Universal binary, meaning it works for both PowerPC and Intel users. If the value in the parentheses is 0 (zero) then OS X is not making instantaneous use of VM which means you have adequate physical RAM for the system with the applications you have loaded. Top command at the prompt you will find information reported on Its especially useful in network troubleshooting as it provides an instant easy to access interface that feedbacks how a particular network interface of. If you are really in need of more RAM that would be indicated by how frequently the system uses VM. Menumeters provides that additional information that is hungered by technogeeks and control freaks alike so that they are clued in on what’s happening with their Mac hardware at every moment. Though it ending up being more of a rewrite since there's a ton of old and unnecessary code from the 10.2 days and it only needs to be a simple application instead of a preference pane. I was just working on the same thing myself.
MENUMETERS. FOR MAC OS X
Swap figure represents an estimate of the total amount of swap space required for VM if used, but does not necessarily indicate the actual size of the existing swap file. MenuMeters was ported for Mac OS X El Capitan 10.11. This will change as applications are opened and closed or change from active to inactive status.

This is a limitation of the processor, and not a MenuMeters bug. Also note that the temperature reported is only accurate to approximately +/- 20 degrees. Note that many Mac models made between 2001-2003 do not support processor temperature.

The amount of available RAM for applications is the sum of FEATURE Added Processor temperature info to the CPU menu where supported. Performance Guidelines- Memory Management in Mac OS X Reading system memory usage in Activity Monitor MenuMeters is cool because it is a throwback to when Apple didnt have a public API for putting stuff in the Menu bar. There's no need for any user involvement. The OS memory management controls how much memory any program gets, and all running applications get whatever memory they require.
