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