ot: 809MB
system: 809MB
desktop: 172MB
background: 74MB
applications: 558MB
standby: 422MB
-
root -system: 0MB
system -desktop -background -applications: 5MB
applications -standby: 0MB
total: 809MB
total device memory: 985MB

--Usage
root: 752MB
system: 650MB
-
desktop: 97MB/100MB
background: 9MB/10MB
applications: 408MB/600MB
standby: 366MB/500MB
subtotal: 515MB/710MB

root -system: 101MB
system -desktop -background -applications: 135MB
applications -standby: 41MB

total: 752MB/985MB

that's my output. It lags on my phone too. I'm on pr1.2.
i have media and data of around 20GB.

thanks.