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# tuned-amdgpu
Hacky solution to integrate AMDGPU power profile control in `tuned` with Ansible
Hacky solution to integrate AMDGPU power control and overclocking in `tuned` with Ansible
Takes a list of existing `tuned` profiles and creates new ones based on them. These new profiles include AMDGPU power/clock parameters
An attempt is made to discover the active GPU using the 'connected' state in the `DRM` subsystem, example:
```
$ grep -ls ^connected /sys/class/drm/*/status | grep -o card[0-9] | sort | uniq | sort -h | tail -1
```bash
~ $ grep -ls ^connected /sys/class/drm/*/status | grep -o card[0-9] | sort | uniq | sort -h | tail -1
card1
```
_Warning_: This is only tested with `RX6000` series GPUs, it is probable that older AMD GPUs will not work properly. Use at your own risk!
_Warning_: This is only tested with `RX6000` series GPUs, it is probable that other generations will *not* work properly. Use at your own risk!
## Profiles
An example of the output/provided profiles follow
Two _'profiles'_ are in each name:
- before `amdgpu` is the source profile provided with `tuned`
- after `amdgpu` tells the GPU clock profile offered, outlined below
| Output profile | Description |
|:---|---|
| `balanced-amdgpu-default` | Includes the (assumed) existing `balanced` tuned profile.<br/><br/>Only adjusts the GPU power limit (typically lower). Clocks/voltage curve remain the default. |
| `desktop-amdgpu-VR` | Includes the (assumed) existing `desktop` tuned profile.<br/><br/>Adjusts the GPU power limit, clocks, _and_ the voltage curve.<br/><br/>Uses the predefined `VR` profile in the driver. See `/sys/class/drm/card*/device/pp_power_profile_mode` |
| `latency-performance-amdgpu-custom` | Includes the existing `latency-performance` tuned profile.<br/><br/>Like the existing GPU profiles (eg: _VR)), this also adjusts the GPU power limit, clocks, _and_ the voltage curve.<br/><br/>This differs by using the `custom` profile in the driver. This opens up further tweaking of the power/clock heuristics through the driver (currently manual). see: [pp-dpm](https://docs.kernel.org/gpu/amdgpu/thermal.html#pp-dpm) |
**Note**: This is non-exhaustive, see the variables `base_profiles` and `amdgpu_profiles` below for the (default) sources of the merged profile mapping
| `desktop-amdgpu-overclock` | Includes the (assumed) existing `desktop` tuned profile.<br/><br/>Adjusts the GPU power limit, clocks, _and_ the voltage curve. |
| `desktop-amdgpu-peak` | Includes the (assumed) existing `desktop` tuned profile.<br/><br/>Same as the `overclock` profile, but locks clocks to their highest configured values |
## Notable variables
These are the variables you're likely to want to change. They are defined in [playbook.yml](playbook.yml)
| Variable | Description | In-playbook |
|------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| gpu_clock_min | Sets the minimum (dynamic) GPU clock (in `Mhz`) for the non-default `amdgpu` profiles | `700` |
| gpu_clock_max | Sets the maximum (dynamic) GPU clock (in `MHz`) for the non-default `amdgpu` profiles | `2600`, results in `2.6GHz` (rounded); mild overclock |
| gpumem_clock_static | Sets the _static_ memory clock for the GPU (in `MHz`). This is *not* the _effective_ data rate. That is a multiple of this depending on the type of VRAM.<br/><br/>To avoid flickering this does *not* change dynamically with load. | `1050`, results in just over `1GHz`; mild overclock<br/><br/>Actual effective clock depends on this being multiplied against the data/pump rate of the `GDDR?` GPU memory |
| gpu_mv_offset | GPU core voltage offset. Takes +/- some integer in millivolts. Can be used to both over _and_ under volt. | `-50` (undervolt `50mV` or `0.05V`) |
| base_profiles | List of base tuned profiles to clone in the new AMDGPU profiles. Defaults based on `Fedora` | <ul><li>`balanced`</li><li>`desktop`</li><li>`latency-performance`</li><li>`network-latency`</li><li>`network-throughput`</li><li>`powersave`</li><li>`virtual-host`</li>|
| amdgpu_profiles | Dictionary mapping the AMDGPU power profiles found in `/sys/class/drm/card*/device/pp_power_profile_mode` and custom power limits.<br/><br>For each item, two keys: `pwrmode` and `pwr_cap_multi`.<br/><br/>`pwrmode` maps to the number assigned in `/sys` above.<br/>`pwr_cap_multi` is a multiplier against board power capability. Must be a float, eg: `0.5` for *50%* | <pre>default:<br/> pwrmode: 0<br/> pwr_cap_multi: 0.75<br/> # 75% relatively safe default<br/>VR:<br/> pwrmode: 4<br/> pwr_cap_multi: 0.8<br/> # 80%, likely slight boost<br/>custom:<br/> pwrmode: 6<br/> pwr_cap_multi: 1.0<br/> # 100%, full GPU board capability<br/> # warning: significantly increased heat</pre>|
| Variable | Description |
|------------------------|---------------------------------------------------------------------------------------|
| gpu_clock_min | Sets the minimum (dynamic) GPU clock (in `Mhz`) for the non-default `amdgpu` profiles |
| gpu_clock_max | Sets the maximum (dynamic) GPU clock (in `MHz`) for the non-default `amdgpu` profiles |
| gpumem_clock_static | Sets the _static_ memory clock for the GPU (in `MHz`). This is *not* the _effective_ data rate. That is a multiple of this depending on the type of VRAM.<br/><br/>To avoid flickering this does *not* change dynamically with load. |
| gpu_mv_offset | GPU core voltage offset. Takes +/- some integer in millivolts. Can be used to both over _and_ under volt. eg: `-50` _(undervolt `50mV` or `0.05V`)_ |
| base_profiles | List of base tuned profiles to clone in the new AMDGPU profiles. Defaults based on `Fedora` |
| gpu_power_multi | Dictionary with two keys, `default` and `overclock`. Expects two floats to set a power limit relative to the board _capability_. Example: `1.0` is full board capability, `0.5` is 50%. |

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- role: tuned_amdgpu
# note: 'gpu_*' vars only apply with the 'custom' suffixed profiles created by this tooling
# profiles based on the 'default' amdgpu power profile mode use default clocks
gpu_clock_min: "750" # default 500
gpu_clock_max: "2600" # default 2529
gpumem_clock_static: "1050"
#
# the connected AMD GPU is automatically discovered - assumes one
# on swap to other AMD cards to avoid instability:
# 'rm -rfv /etc/tuned/*amdgpu*'
gpu_clock_min: "750" # default 500, for best performance: near maximum. applies with 'overclock' tuned profile
gpu_clock_max: "2675" # default somewhere around 2529 to 2660
gpumem_clock_static: "1075"
gpu_power_multi:
default: 0.869969040247678 # 281W - real default
overclock: 0.928792569659443 # 300W - slight boost
# overclock: 1.0 # 323W - full board capability
# optional, applies offset (+/-) to GPU voltage by provided mV
gpu_mv_offset: "-50"
# gpu_mv_offset: "-25"
# gpu_mv_offset: "+50" # add 50mV or 0.05V
gpu_mv_offset: "+25" # add 25mV or 0.025V
# '-50' undervolts GPU core voltage 50mV or 0.05V
# mostly untested, there be dragons/instability
#
# list of source tuned profiles available on Fedora (TODO: should dynamically discover)
base_profiles:
@ -23,27 +34,3 @@
- network-throughput
- powersave
- virtual-host
#
# mapping of typical Navi generation power profiles from:
# /sys/class/drm/card*/device/pp_power_profile_mode
# ref: https://www.kernel.org/doc/html/v4.20/gpu/amdgpu.html#pp-power-profile-mode
# 'pwr_cap_multi' is multiplied against board *limit* to determine profile wattage; 0.5 = 50%
# values below reflect my 6900XT
amdgpu_profiles:
default:
pwrmode: 0
pwr_cap_multi: 0.789473684210526 # 255W - default
3D:
pwrmode: 1
pwr_cap_multi: 0.789473684210526 # 255W - default
VR:
pwrmode: 4
pwr_cap_multi: 0.789473684210526 # 255W - default
compute:
pwrmode: 5
pwr_cap_multi: 0.789473684210526 # 255W - default
custom:
pwrmode: 6
pwr_cap_multi: 0.869969040247678 # 281W - slight boost
# both dictionaries are merged to create new 'tuned' profiles. eg:
# 'balanced-amdgpu-default', 'balanced-amdgpu-3D', 'balanced-amdgpu-video'

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---
# defaults file for tuned_amdgpu
#
# vars handling unit conversion RE: power capabilities/limits
# the discovered board limit for power capability; in microWatts, then converted
power_max: "{{ power_max_b64['content'] | b64decode }}"
board_watts: "{{ power_max | int / 1000000 }}"
# internals for profile power calculations
# item in the context of the with_nested loops in the play
profile_name: "{{ item.0.key }}"
profile_percentage: "{{ (item.0.value.pwr_cap_multi * 100.0) | round(2) }}"
profile_multi: "{{ item.0.value.pwr_cap_multi }}"
profile_microwatts: "{{ power_max | float * profile_multi | float }}"
profile_watts: "{{ profile_microwatts | int / 1000000 }}"
profile_name: "{{ item.0 }}"
amdgpu_profiles:
- default
- overclock
- peak

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#!/bin/bash
#
# 'common' file sourced by other scripts under tuned profile
#
# dynamically determine the connected GPU using the DRM subsystem
CARD=$(/usr/bin/grep -ls ^connected /sys/class/drm/*/status | /usr/bin/grep -o 'card[0-9]' | /usr/bin/sort | /usr/bin/uniq | /usr/bin/sort -h | /usr/bin/tail -1)
function get_hwmon_dir() {
CARD_DIR="/sys/class/drm/${1}/device/"
for CANDIDATE in "${CARD_DIR}"/hwmon/hwmon*; do
if [[ -f "${CANDIDATE}"/power1_cap ]]; then
# found a valid hwmon dir
echo "${CANDIDATE}"
fi
done
}
# determine the hwmon directory
HWMON_DIR=$(get_hwmon_dir "${CARD}")
# read all of the power profiles, used to get the IDs for assignment later
PROFILE_MODES=$(< /sys/class/drm/"${CARD}"/device/pp_power_profile_mode)
# get power capability; later used determine limits
read -r -d '' POWER_CAP < "$HWMON_DIR"/power1_cap_max
# enable THP; profile enables the 'vm.compaction_proactiveness' sysctl
# improves allocation latency
echo 'always' | tee /sys/kernel/mm/transparent_hugepage/enabled
# export determinations
export CARD
export HWMON_DIR
export PROFILE_MODES
export POWER_CAP

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ansible.builtin.service:
name: tuned
state: restarted
become: true

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when: (fed_ppdtuned_swap is not defined) or ('tuned' not in ansible_facts.packages)
become: true
- name: Determine GPU device in drm subsystem
ansible.builtin.shell:
cmd: grep -ls ^connected /sys/class/drm/*/status | grep -o card[0-9] | sort | uniq | sort -h | tail -1
executable: /bin/bash
changed_when: false
register: card
- name: Find hwmon/max power capability file for {{ card.stdout }}
ansible.builtin.find:
paths: /sys/class/drm/{{ card.stdout }}/device/hwmon
file_type: file
recurse: true
use_regex: true
patterns:
- '^power1_cap_max$'
register: hwmon
- name: Find hwmon/current power limit file for {{ card.stdout }}
ansible.builtin.find:
paths: /sys/class/drm/{{ card.stdout }}/device/hwmon
file_type: file
recurse: true
use_regex: true
patterns:
- '^power1_cap$'
register: powercap_set
- name: Get max power capability for {{ card.stdout }}
ansible.builtin.slurp:
src: "{{ hwmon.files.0.path }}"
register: power_max_b64
- name: Ensure dynamic tuning is disabled
ansible.builtin.lineinfile:
path: /etc/tuned/tuned-main.conf
regexp: '^dynamic_tuning.*='
line: 'dynamic_tuning = 0'
notify: Restart tuned
become: true
- name: Create custom profile directories
ansible.builtin.file:
state: directory
path: /etc/tuned/{{ item.1 }}-amdgpu-{{ item.0.key }}
path: /etc/tuned/{{ item.1 }}-amdgpu-{{ item.0 }}
mode: "0755"
with_nested:
- "{{ lookup('dict', amdgpu_profiles) }}"
- "{{ amdgpu_profiles }}"
- "{{ base_profiles }}"
become: true
- name: Template AMDGPU control/reset scripts
- name: Copy 'common' AMDGPU script for all profiles
ansible.builtin.copy:
src: profile-common.sh
dest: "/etc/tuned/{{ item.1 }}-amdgpu-{{ item.0 }}/amdgpu-common.sh"
mode: "0644" # sourced, doesn't require executable bit
owner: root
group: root
notify: Restart tuned
with_nested:
- "{{ amdgpu_profiles }}"
- "{{ base_profiles }}"
become: true
- name: Template custom AMDGPU profile scripts
ansible.builtin.template:
src: templates/amdgpu-clock.sh.j2
dest: /etc/tuned/{{ item.1 }}-amdgpu-{{ item.0.key }}/amdgpu-clock.sh
src: amdgpu-profile-{{ item.0 }}.sh.j2
dest: /etc/tuned/{{ item.1 }}-amdgpu-{{ item.0 }}/amdgpu-clock.sh
owner: root
group: root
mode: "0755"
with_nested:
- "{{ lookup('dict', amdgpu_profiles) }}"
- "{{ base_profiles }}"
loop: "{{ amdgpu_profiles | product(base_profiles) | list }}"
notify: Restart tuned
become: true
- name: Template custom tuned profiles
- name: Template tuned.conf for custom profiles
ansible.builtin.template:
src: templates/tuned.conf.j2
dest: /etc/tuned/{{ item.1 }}-amdgpu-{{ item.0.key }}/tuned.conf
dest: /etc/tuned/{{ item.1 }}-amdgpu-{{ item.0 }}/tuned.conf
owner: root
group: root
mode: "0644"
with_nested:
- "{{ lookup('dict', amdgpu_profiles) }}"
- "{{ amdgpu_profiles }}"
- "{{ base_profiles }}"
notify: Restart tuned
become: true

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#!/bin/bash
# script for tuned AMDGPU clock control
# configures GPU power/clock characteristics
# clocks/power in 3D are dynamic based on need/usage
#
# for 'amdgpu-default' tuned profiles, this will reset the characteristics to default
# for others this will apply overclocking settings -- leaving clock choices to the associated power profile (eg: VR)
#
# rendered by Ansible with environment-appropriate values:
# card #, eg: card0
# path to discovered sysfs device files (power/clock/voltage control)
#
# AMDGPU driver/sysfs references:
# https://01.org/linuxgraphics/gfx-docs/drm/gpu/amdgpu.html
# https://docs.kernel.org/gpu/amdgpu/thermal.html
{# done this way to avoid issues with the card number possibly shifting after playbook run #}
# dynamically determine the connected GPU using the DRM subsystem
CARD=$(/usr/bin/grep -ls ^connected /sys/class/drm/*/status | /usr/bin/grep -o 'card[0-9]' | /usr/bin/sort | /usr/bin/uniq | /usr/bin/sort -h | /usr/bin/tail -1)
{# begin the templated script for 'default' profiles to reset state #}
{% if 'default' in profile_name %}
# set power state transition heuristics to default
echo '{{ item.0.value.pwrmode }}' | tee /sys/class/drm/"${CARD}"/device/pp_power_profile_mode
# set control mode back to auto
# attempts to dynamically set optimal power profile for (load) conditions
echo 'auto' | tee /sys/class/drm/"${CARD}"/device/power_dpm_force_performance_level
# reset any existing profile clock changes
echo 'r' | tee /sys/class/drm/"${CARD}"/device/pp_od_clk_voltage
# give '{{ profile_name }}' profile ~{{ profile_percentage }}% (rounded) of the max power capability
# {{ profile_watts }} Watts of {{ board_watts }} total
echo '{{ profile_microwatts | int }}' | tee '{{ powercap_set.files.0.path }}'
{% else %}
{# begin the templated script for non-default AMD GPU profiles, eg: 'VR' or '3D_FULL_SCREEN' #}
# set manual control mode
# allows control via 'pp_dpm_mclk', 'pp_dpm_sclk', 'pp_dpm_pcie', 'pp_dpm_fclk', and 'pp_power_profile_mode' files
# only interested in 'pp_power_profile_mode' for power and 'pp_dpm_mclk' for memory clock (flickering).
# GPU clocks are dynamic based on (load) condition
echo 'manual' | tee /sys/class/drm/"${CARD}"/device/power_dpm_force_performance_level
# set power state transition heuristics to '{{ profile_name }}' profile
echo '{{ item.0.value.pwrmode }}' | tee /sys/class/drm/"${CARD}"/device/pp_power_profile_mode
# give '{{ profile_name }}' profile ~{{ profile_percentage }}% (rounded) of the max power capability
# {{ profile_watts }} Watts of {{ board_watts }} total
echo '{{ profile_microwatts | int }}' | tee '{{ powercap_set.files.0.path }}'
# set the minimum GPU clock
echo 's 0 {{ gpu_clock_min }}' | tee /sys/class/drm/"${CARD}"/device/pp_od_clk_voltage
# set the maximum GPU clock
echo 's 1 {{ gpu_clock_max }}' | tee /sys/class/drm/"${CARD}"/device/pp_od_clk_voltage
# set the maximum GPU *memory* clock
echo 'm 1 {{ gpumem_clock_static }}' | tee /sys/class/drm/"${CARD}"/device/pp_od_clk_voltage
{% if gpu_mv_offset is defined %}
# offset GPU voltage {{ gpu_mv_offset }}mV
echo 'vo {{ gpu_mv_offset }}' | tee /sys/class/drm/"${CARD}"/device/pp_od_clk_voltage
{% endif %}
# commit the changes
echo 'c' | tee /sys/class/drm/"${CARD}"/device/pp_od_clk_voltage
# force GPU memory into highest clock (fix flickering)
# pp_dpm_*clk settings are unintuitive, giving profiles that may be used
# opt not to set the others (eg: sclk/fclk) - those should remain for benefits from the curve
echo '3' | tee /sys/class/drm/"${CARD}"/device/pp_dpm_mclk
{% endif %}

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#!/bin/bash
# script for tuned AMDGPU clock control
# configures GPU power/clock characteristics
# clocks/power in 3D are dynamic based on need/usage
#
# for 'amdgpu-default' tuned profiles, this will reset the characteristics to default
# for others this will apply overclocking settings -- leaving clock choices to the associated power profile (eg: VR)
#
# rendered by Ansible with environment-appropriate values:
# card #, eg: card0
# path to discovered sysfs device files (power/clock/voltage control)
#
# AMDGPU driver/sysfs references:
# https://01.org/linuxgraphics/gfx-docs/drm/gpu/amdgpu.html
# https://docs.kernel.org/gpu/amdgpu/thermal.html
#
# start by including the 'common' script; determines card/hwmon dir/power profiles/power capability
. $(dirname "${BASH_SOURCE[0]}")/amdgpu-common.sh
{# begin the templated script for 'default' profiles to reset state #}
# set control mode back to auto
# attempts to dynamically set optimal power profile for (load) conditions
echo 'auto' | tee /sys/class/drm/"${CARD}"/device/power_dpm_force_performance_level
# reset any existing profile clock changes
echo 'r' | tee /sys/class/drm/"${CARD}"/device/pp_od_clk_voltage
# adjust power limit using multiplier against board capability
POWER_LIM_DEFAULT=$(/usr/bin/awk -v m="$POWER_CAP" -v n={{ gpu_power_multi.default }} 'BEGIN {printf "%.0f", (m*n)}')
echo "$POWER_LIM_DEFAULT" | tee "${HWMON_DIR}/power1_cap"
# extract the power-saving profile ID number
PROF_DEFAULT_NUM=$(/usr/bin/awk '$0 ~ /BOOTUP_DEFAULT.*:/ {print $1}' <<< "$PROFILE_MODES")
# reset power/clock heuristics to power-saving
echo "${PROF_DEFAULT_NUM}" | tee /sys/class/drm/"${CARD}"/device/pp_power_profile_mode

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#!/bin/bash
# script for tuned AMDGPU clock control
# configures GPU power/clock characteristics
# clocks/power in 3D are dynamic based on need/usage
#
# for 'amdgpu-default' tuned profiles, this will reset the characteristics to default
# for others this will apply overclocking settings -- leaving clock choices to the associated power profile (eg: VR)
#
# rendered by Ansible with environment-appropriate values:
# card #, eg: card0
# path to discovered sysfs device files (power/clock/voltage control)
#
# AMDGPU driver/sysfs references:
# https://01.org/linuxgraphics/gfx-docs/drm/gpu/amdgpu.html
# https://docs.kernel.org/gpu/amdgpu/thermal.html
#
# start by including the 'common' script; determines card/hwmon dir/power profiles/power capability
. $(dirname "${BASH_SOURCE[0]}")/amdgpu-common.sh
{# begin the templated script for 'overclocked' AMD GPU profiles based on the existing tuned profiles #}
# set the minimum GPU clock - for best performance, this should be near the maximum
# RX6000 series power management *sucks*
echo 's 0 {{ gpu_clock_min }}' | tee /sys/class/drm/"${CARD}"/device/pp_od_clk_voltage
# set the maximum GPU clock
echo 's 1 {{ gpu_clock_max }}' | tee /sys/class/drm/"${CARD}"/device/pp_od_clk_voltage
# set the GPU *memory* clock
# normally this would appear disregarded, memory clocked at the minimum allowed by the overdrive (OD) range
# it follows the core clock; if both 0/1 profiles for _it_ are high enough, the memory will follow
echo 'm 1 {{ gpumem_clock_static }}' | tee /sys/class/drm/"${CARD}"/device/pp_od_clk_voltage
{% if gpu_mv_offset is defined %}
# offset GPU voltage {{ gpu_mv_offset }}mV
echo 'vo {{ gpu_mv_offset }}' | tee /sys/class/drm/"${CARD}"/device/pp_od_clk_voltage
{% endif %}
# commit the changes
echo 'c' | tee /sys/class/drm/"${CARD}"/device/pp_od_clk_voltage
# force GPU core and memory into highest clocks (fix flickering and poor power management)
# set manual control mode
# allows control via 'pp_dpm_mclk', 'pp_dpm_sclk', 'pp_dpm_pcie', 'pp_dpm_fclk', and 'pp_power_profile_mode' files
echo 'manual' | tee /sys/class/drm/"${CARD}"/device/power_dpm_force_performance_level
# adjust power limit using multiplier against board capability
POWER_LIM_OC=$(/usr/bin/awk -v m="$POWER_CAP" -v n={{ gpu_power_multi.overclock }} 'BEGIN {printf "%.0f", (m*n)}')
echo "$POWER_LIM_OC" | tee "${HWMON_DIR}/power1_cap"
# avoid display flickering, force OC'd memory to highest clock
echo '3' | tee /sys/class/drm/"${CARD}"/device/pp_dpm_mclk
# extract the VR power profile ID number
PROF_VR_NUM=$(/usr/bin/awk '$0 ~ /VR.*:/ {print $1}' <<< "$PROFILE_MODES")
# force 'overclocked' profile to 'VR' power/clock heuristics
# latency/frame timing seemed favorable with relatively-close minimum clocks
echo "${PROF_VR_NUM}" | tee /sys/class/drm/"${CARD}"/device/pp_power_profile_mode

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#!/bin/bash
# script for tuned AMDGPU clock control
# configures GPU power/clock characteristics
# clocks/power in 3D are dynamic based on need/usage
#
# for 'amdgpu-default' tuned profiles, this will reset the characteristics to default
# for others this will apply overclocking settings -- leaving clock choices to the associated power profile (eg: VR)
#
# rendered by Ansible with environment-appropriate values:
# card #, eg: card0
# path to discovered sysfs device files (power/clock/voltage control)
#
# AMDGPU driver/sysfs references:
# https://01.org/linuxgraphics/gfx-docs/drm/gpu/amdgpu.html
# https://docs.kernel.org/gpu/amdgpu/thermal.html
#
# start by including the 'common' script; determines card/hwmon dir/power profiles/power capability
. $(dirname "${BASH_SOURCE[0]}")/amdgpu-common.sh
{# begin the templated script for 'overclocked' AMD GPU profiles based on the existing tuned profiles #}
# set the minimum GPU clock - for best performance, this should be near the maximum
# RX6000 series power management *sucks*
echo 's 0 {{ gpu_clock_min }}' | tee /sys/class/drm/"${CARD}"/device/pp_od_clk_voltage
# set the maximum GPU clock
echo 's 1 {{ gpu_clock_max }}' | tee /sys/class/drm/"${CARD}"/device/pp_od_clk_voltage
# set the GPU *memory* clock
# normally this would appear disregarded, memory clocked at the minimum allowed by the overdrive (OD) range
# it follows the core clock; if both 0/1 profiles for _it_ are high enough, the memory will follow
echo 'm 1 {{ gpumem_clock_static }}' | tee /sys/class/drm/"${CARD}"/device/pp_od_clk_voltage
{% if gpu_mv_offset is defined %}
# offset GPU voltage {{ gpu_mv_offset }}mV
echo 'vo {{ gpu_mv_offset }}' | tee /sys/class/drm/"${CARD}"/device/pp_od_clk_voltage
{% endif %}
# commit the changes
echo 'c' | tee /sys/class/drm/"${CARD}"/device/pp_od_clk_voltage
# force GPU core and memory into highest clocks (fix flickering and poor power management)
# set manual control mode
# allows control via 'pp_dpm_mclk', 'pp_dpm_sclk', 'pp_dpm_pcie', 'pp_dpm_fclk', and 'pp_power_profile_mode' files
echo 'manual' | tee /sys/class/drm/"${CARD}"/device/power_dpm_force_performance_level
# adjust power limit using multiplier against board capability
POWER_LIM_OC=$(/usr/bin/awk -v m="$POWER_CAP" -v n={{ gpu_power_multi.overclock }} 'BEGIN {printf "%.0f", (m*n)}')
echo "$POWER_LIM_OC" | tee "${HWMON_DIR}/power1_cap"
# pp_dpm_*clk settings are unintuitive, giving profiles that may be used
echo '1' | tee /sys/class/drm/"${CARD}"/device/pp_dpm_sclk
echo '3' | tee /sys/class/drm/"${CARD}"/device/pp_dpm_mclk
echo '2' | tee /sys/class/drm/"${CARD}"/device/pp_dpm_fclk
echo '2' | tee /sys/class/drm/"${CARD}"/device/pp_dpm_socclk
# extract the VR power profile ID number
PROF_VR_NUM=$(/usr/bin/awk '$0 ~ /VR.*:/ {print $1}' <<< "$PROFILE_MODES")
# force 'overclocked' profile to 'VR' power/clock heuristics
# latency/frame timing seemed favorable with relatively-close minimum clocks
echo "${PROF_VR_NUM}" | tee /sys/class/drm/"${CARD}"/device/pp_power_profile_mode
# note 4/8/2023: instead of 'manual'... try dealing with broken power management, force clocks to high
# ref: https://gitlab.freedesktop.org/drm/amd/-/issues/1500
# followup: doesn't work that well in practice, still flaky on clocks/frame times
#echo 'high' | tee /sys/class/drm/"${CARD}"/device/power_dpm_force_performance_level

View file

@ -1,16 +1,22 @@
[main]
include={{ item.1 }}
summary={{ item.1 }} + TCP/RAID tweaks + AMDGPU pp_power_profile_mode = {{ item.0.value.pwrmode }} ({{ item.0.key }})
summary={{ item.1 }} + TCP/RAID tweaks + AMDGPU {{ item.0 }}
[sysctl]
# allow regular users to see the kernel ring buffer
kernel.dmesg_restrict=0
net.core.default_qdisc=fq
# 'bbr2' requires a [modified] supporting kernel - stock Fedora kernels do *not* support it (currently)
# eg: 'kernel-xanmode-edge' from COPR 'rmnscnce/kernel-xanmod'
net.ipv4.tcp_congestion_control=bbr2
net.core.rmem_max=33554432
net.core.wmem_max=33554432
dev.raid.speed_limit_min=600000
dev.raid.speed_limit_max=9000000
dev.raid.speed_limit_min=1000000
dev.raid.speed_limit_max=6000000
# improve THP allocation latency, compact in background
vm.compaction_proactiveness=30
# make page lock theft slightly more fair
vm.page_lock_unfairness=1
# allow some games to run (eg: DayZ)
vm.max_map_count=1048576
@ -20,3 +26,11 @@ vm.max_map_count=1048576
[gpuclockscript]
type=script
script=${i:PROFILE_DIR}/amdgpu-clock.sh
# for SSDs with no RPM, set no IO scheduler
[ssdnosched]
type=disk
devices_udev_regex=(ID_ATA_ROTATION_RATE_RPM=0)
# elevator=none
elevator=kyber
# elevator=mq-deadline