| # 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 |
