Where is my memory going?

Since installing 6.42.1, a number of my CPEs have been regularly supouting for “out of memory” (also kernel error and watchdogs, but that’s another problem entirely).

It would be nice to know where the memory is going – what portion of the system is using how much.

I’ve never been able to find any ROS command that would show memory usage like /tools profile shows for CPU. (CPU is around 4%, it’s not the problem.). Is there one?