Add support for speedshift (hardware p-states).

This commit is contained in:
Tom Alexander 2022-10-15 20:54:58 -04:00
parent c45e4cc3fa
commit f965a125e6
Signed by: talexander
GPG Key ID: D3A179C9A53C0EDE
5 changed files with 50 additions and 0 deletions

View File

@ -11,3 +11,4 @@ network_rc: "homeserver_network.conf"
rc_conf: "homeserver_rc.conf"
loader_conf: "homeserver_loader.conf"
cputype: "intel"
hwpstate: false

View File

@ -12,3 +12,4 @@ rc_conf: "odofreebsd_rc.conf"
loader_conf: "odofreebsd_loader.conf"
cputype: "intel"
hwpstate: true
cores: 8

View File

@ -0,0 +1,14 @@
#!/usr/bin/env bash
#
# Tell speedshift whether to maximize CPU performance (100) or energy
# efficiency (0).
set -euo pipefail
IFS=$'\n\t'
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
perc=$1
epp=$((100 - perc))
sysctl -N dev.hwpstate_intel | grep -E 'dev.hwpstate_intel.[0-9]+.epp' | while read var; do
sysctl "$var=$epp"
done

View File

@ -0,0 +1,2 @@
# Control each core individually
machdep.hwpstate_pkg_ctrl=0

View File

@ -46,3 +46,35 @@
with_items:
- src: powerdxxrc.conf
dest: /etc/rc.conf.d/powerdxx
- name: Favor energy efficiency for Speed Shift
when: hwpstate is defined and hwpstate and cores is defined
sysctl:
name: "dev.hwpstate_intel.{{ item }}.epp"
value: 100
state: present
sysctl_file: "/etc/sysctl.conf.local"
loop: "{{ range(0, cores, 1)|list }}"
- name: Install scripts
when: hwpstate is defined and hwpstate
copy:
src: "files/{{ item.src }}"
dest: "{{ item.dest }}"
mode: 0755
owner: root
group: wheel
loop:
- src: cpu_set_perf_perc
dest: /usr/local/bin/cpu_set_perf_perc
- name: Install loader.conf
when: hwpstate is defined and hwpstate
copy:
src: "files/{{ item }}_loader.conf"
dest: "/boot/loader.conf.d/{{ item }}.conf"
mode: 0644
owner: root
group: wheel
loop:
- percorespeedshift