I have 16gb of RAM, but only 10gb are usable?

Question

Hello everyone,
     I have a Mid 2012 15" Macbook Pro running Yosemite. When I first got it, I upgraded to 16gb of 1600 MHz DDR3 RAM because I would be needing it for a lot of the programs I run. I have the 2.3 GHz i7 processor. Stock 500gb hard drive. No matter what I do it says that I have at max 10 gb available at a time. Here is what it says as of 5 minutes ago:
App Memory: 3.38 gb
File Cache: 1.8 gb
Wired:1.42 gb
Compressed: 10.23 mb
Used: 6.63 gb
Total: 16.00 gb
One thing That I knew was taking some was VMware fusion, for which I dedicated 2 gb to the virtual machine, but I recently deleted it and I didn't see any difference. I also have bootcamp installed, but that shouldn't make much of a difference. Any help would be greatly appreciated!

Answer 1

The output from this terminal command will tell you how much memory is recognized by your system, copy and paste the entirety including the comma  apostrophe at the end :
system_profiler SPHardwareDataType SPMemoryDataType | perl -ne '
     $Memory       = $1 if /Memory:\s+(\d+\s+\S+)/;
     $Phase2       = 1  if /Memory:\s*$/;
     $MemSpeed     = $1 if $Phase2 && /Speed:\s+(\d+\s+\S+)/;
     $Type         = $1 if $Phase2 && /Type:\s+(.*)/;
     END { printf("%s\n%s x %s %s\n%s %s %s\n",
                  $SerialNumber,
                  $Processors, $Speed, $Name,
                  $Memory, $MemSpeed, $Type);
then hit  the return key for the output.
Quite terminal