# Copyright 2019 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
#

on early-boot
    # TODO: the below doesnt' do anything because trogdor is running
    # on kernel 5.4 and we don't have schedtune.  It's comment out until
    # we know what to do.  See https://crbug.com/1041117#c45

    # # Mount SchedTune controller and create tuning groups.
    # mkdir /dev/stune
    # mount cgroup none /dev/stune schedtune
    # mkdir /dev/stune/foreground
    # chown system system /dev/stune
    # chown system system /dev/stune/foreground
    # chown system system /dev/stune/tasks
    # chown system system /dev/stune/foreground/tasks
    # chmod 0664 /dev/stune/tasks
    # chmod 0664 /dev/stune/foreground/tasks

    # # Foreground tasks get schedule boost
    # write /dev/stune/foreground/schedtune.boost 20
    # write /dev/stune/foreground/schedtune.prefer_idle 1

on property:sys.boot_completed=1
    # Allow foreground apps to have all CPUs.  Restrict background apps to
    # little cores to keep them more power efficient.  NOTE: this is a bit of
    # a stopgap solution for now.  It would be better if we told the kernel
    # a high-level goal for tasks and it could figure out the rest.
    write /dev/cpuset/foreground/cpus 0-7
    write /dev/cpuset/background/cpus 0-5
    write /dev/cpuset/system-background/cpus 0-5
    write /dev/cpuset/restricted/cpus 0-5
    write /dev/cpuset/top-app/cpus 0-7