EricRahm

Figuring out available memory on a device

adb shell cat /proc/meminfo

• MemTotal tells you how much device memory is available outside of drivers/kernel.
• MemFree tells you how much memory is currently available, checking this after booting should give you a rough guesstimate of what our max is.

To simulate what would happen in a low-memory situation you can adb shell kill <pid> each b2g process but b2g, (Nuwa), Homescreen (use b2g-ps to get a b2g process listing). Unfortunately Homescreen just comes back (it can be LMK'd though, so add it's USS to the MemFree total to get a better idea of an ideal MemFree value).

Get an overview of b2g application memory usage

EricRahm

import json
import collections
import sys
import operator

from pprint import pprint

def path_total(data, path):
    totals = collections.defaultdict(int)
    totals_heap = collections.defaultdict(int)