When running adb shell dumpsys on Android while pre-rendering, it seems that the pre-renderer is not running at background priority.




ACTIVITY MANAGER RUNNING PROCESSES (dumpsys activity processes)
  Isolated process list (sorted by uid):
    Isolated # 1: ProcessRecord{28640419 3788:org.chromium.chrome:sandboxed_process0/u0a121i762}

  Process LRU list (sorted by oom_adj, 30 total, non-act at 7, non-svc at 7):
  ...
    Proc # 4: fore  F/ /T  trm: 0 3830:org.chromium.chrome:privileged_process0/u0a121 (service)
        org.chromium.chrome/org.chromium.content.app.PrivilegedProcessService0<=Proc{3741:org.chromium.chrome/u0a121}
    Proc # 3: fore  F/ /T  trm: 0 3788:org.chromium.chrome:sandboxed_process0/u0a121i762 (service)
        org.chromium.chrome/org.chromium.content.app.SandboxedProcessService0<=Proc{3741:org.chromium.chrome/u0a121}
    Proc # 0: fore  F/A/T  trm: 0 3741:org.chromium.chrome/u0a121 (top-activity)
    Proc # 1: vis   B/ /IB trm: 0 22968:com.google.android.googlequicksearchbox:search/u0a34 (service)
        com.google.android.googlequicksearchbox/com.google.android.ssb.service.SsbService<=Proc{3741:org.chromium.chrome/u0a121}