In order to diagnosis memory of computer, I've checked the memory usage by using htop and top.

At that time, I've found that the memory usage reported from htop and top are different.

I haven't run so much programs, but top reported that I'm using more that one third of the memory while htop says I use only small memory.

I cannot understand this difference. Why they reported different result? I wish my the computer does not have any problem :(

First result is from htop and the next is from top.

CodePudding user response：

Top counts the cache aswell.

So if you do:

X = Used

Y = Buffers

Z = Cached

X - Y - X = HTOPMEM