a question about /proc filesystem?

The flash storage of my embed system is only 16M,
But just the /proc directory taskes up about 4M.
In Linux,the /proc is just a virtual filesystem,it doesnot
take up any storage space.

How can i reduce the storage space taken up by /proc?

Actually the 4M includes all the executable that are part of the image (uncompressed .boot). Same has to happen with Linux but /proc is not just showing Linux itself.