resourced - Chrome OS Resource Management Daemon

resourced supports the following 2 D-Bus interfaces for resource management. Check go/resourced for details.

• org.chromium.MemoryPressure - low memory notification API
  • When memory pressure is high, notifying subsystems to free memory.
  • Method GetAvailableMemoryKB - returns the available memory.
  • Method GetMemoryMarginsKB - returns the margin (threshold) for critical and moderate memory pressure.

ChromeOS Config

The following chromeos-config values are supported:

• resource/
  • {ac,dc}
    • web-rtc-power-preferences/
      • governor/
        • ondemand/
          • powersave-bias
      • epp/..
    • fullscreen-power-preferences/
      • governor/..
      • epp/..
    • vm-boot-power-preferences/
      • governor/..
      • epp/..
    • borealis-gaming-power-preferences/
      • governor/..
      • epp/..
    • arcvm-gaming-power-preferences/
      • governor/..
      • epp/..
    • default-power-preferences/
      • governor/..
      • epp/..

Debugging

You can use the following to call the dbus service:

$ dbus-send --print-reply --system --dest=org.chromium.ResourceManager /org/chromium/ResourceManager org.chromium.ResourceManager.SetRTCAudioActive byte:1
$ dbus-send --print-reply --system --dest=org.chromium.ResourceManager /org/chromium/ResourceManager org.chromium.ResourceManager.GetRTCAudioActive