I have the same problem as described in this post here https://forums.oculusvr.com/community/discussion/70426/ovrmetricstool-on-oculus-go-wont-close I copy and paste it here because it describes the issue exactly.
My Oculus Go arrived on Monday and I've been developing ever since. The OVR Metrics Tool (v1.2) is indispensable to get a good performance reading. However I can't seem to disable it properly. In the docs it states you need to execute these commands to disable the Performance HUD:
adb shell setprop debug.oculus.notifPackage ''
adb shell setprop debug.oculus.notifClass ''
adb shell am force-stop com.oculus.ovrmonitormetricsservice
Yet when I do, it simply restarts the overlay. Not even restarting the Go itself makes it disappear. I tried setting the value to something else ("adb shell setprop debug.oculus.notifPackage -" for example) but then it shows the three 'loading' dots at the top of your view instead.
... but from what I found, I can set either to false, but not both because then the overlay goes in a crash loop and keeps trying to restart.
Only 'solution' I've found is just hiding it by setting the pitch really high: adb shell setprop debug.oculus.omms.pitch 90 .. but that resets on restart.
Plus, if I set adb shell setprop debug.oculus.omms.enableStats false adb shell am force-stop com.oculus.ovrmonitormetricsservice
My Oculus Go continue showing this message OVR Metrics Tool continue stopping. Asks me to Close the App, but it keeps showing this alert until I enable states again.
Some help with this would be nice. I see mentions in the docs about some kind of toolbar for the Performance HUD but I've yet to find where I can access this.