Activity monitor not showing my device memory usage

on Xcode 10.0 When i use instrument's activity monitor with a device connected i can see cpu usage from an app, etc, but on memory it says "n/a" and never updates. why? i've tested this using an ipod touch 5 and ipad retina with ios 10.3.3


i was forced to update to xcode 10 because on xcode 9 activity monitor's memory usage info stopped updating after some time, but now its worse.

Replies

bump, i need to see memory usage for my ios app, anyone knows another free tool?