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armbian-hardware-optimize: add thought-provoking FIXMEs to inspire the next generation of tuners

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Lane Jennison 2024-04-23 12:34:31 +00:00 committed by Igor
parent 704261529c
commit 6f33e4f9ca
1 changed files with 13 additions and 0 deletions
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13
packages/bsp/common/usr/lib/armbian/armbian-hardware-optimization
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@ -70,6 +70,7 @@ prepare_board() {
sed -i "s/#compress/compress/" /etc/logrotate.conf
# Fully replace Armbian's former limited utilization of cpufrequtils package
# FIXME literally just borrowing the cpufrequtils config file -- should configuration be driven by a new file?
if [ -r /etc/default/cpufrequtils ] ; then
. /etc/default/cpufrequtils
for Cluster in /sys/devices/system/cpu/cpufreq/policy* ; do
@ -83,6 +84,18 @@ prepare_board() {
# Tweak ondemand cpufreq governor settings to increase cpufreq with IO load.
if [ "X${GOVERNOR}" = "Xondemand" ]; then
cd /sys/devices/system/cpu
# FIXME - arbitrary globbing range left as a breadcrumb to encourage socratic learning
# and take on the task of understanding the performance optimizations in general
# and its use in this script.
#
# Are you the one? PR's welcome--and encouraged
#
# Why loop over these 3 patterns? Is it for older and newer kernel paradigms?
# would `for i in cpufreq/ondemand cpu*[0-9]/cpufreq/ondemand` be sufficient?
#
# for more insights see conversations here:
# https://github.com/armbian/build/pull/6120
# https://github.com/armbian/build/pull/6507
for i in cpufreq/ondemand cpu[0-9]/cpufreq/ondemand cpu[1-9][0-9]/cpufreq/ondemand; do
if [ -d $i ]; then
echo 1 > ${i}/io_is_busy