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Signed-off-by: Tyler Nijmeh <tylernij@gmail.com>
latency
Tyler Nijmeh 4 years ago
parent 7f71db0261
commit 40d421e911
1 changed files with 94 additions and 94 deletions
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188
service.sh
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@ -3,68 +3,68 @@
# Safely apply sysctl adjustment
ctl() {
# Fetch the current key value
local curval=`sysctl -e -n "$1"`
# Bail out if sysctl key does not exist
if [[ -z "$curval" ]]
then
echo "[!] Key $1 does not exist. Skipping."
return 1
fi
# Bail out if sysctl is already set
if [[ "$curval" == "$2" ]]
then
echo "[*] Key $1 is already set to $2. Skipping."
return 0
fi
# Set the new value
sysctl -w "$1"="$2" &> /dev/null
# Bail out if write fails
if [[ $? -ne 0 ]]
then
echo "[!] Failed to write $2 to $1. Skipping."
return 1
fi
# Print new state
echo "[*] $1: $curval --> $2"
# Fetch the current key value
local curval=`sysctl -e -n "$1"`
# Bail out if sysctl key does not exist
if [[ -z "$curval" ]]
then
echo "[!] Key $1 does not exist. Skipping."
return 1
fi
# Bail out if sysctl is already set
if [[ "$curval" == "$2" ]]
then
echo "[*] Key $1 is already set to $2. Skipping."
return 0
fi
# Set the new value
sysctl -w "$1"="$2" &> /dev/null
# Bail out if write fails
if [[ $? -ne 0 ]]
then
echo "[!] Failed to write $2 to $1. Skipping."
return 1
fi
# Print new state
echo "[*] $1: $curval --> $2"
}
# Safely write value to file
write() {
# Bail out if file does not exist
if [[ ! -f "$1" ]]
then
echo "[!] File $1 does not exist. Skipping."
return 1
fi
# Fetch the current key value
local curval=`cat "$1"`
# Bail out if value is already set
if [[ "$curval" == "$2" ]]
then
echo "[*] File $1 is already set to $2. Skipping."
return 0
fi
# Write the new value
echo "$2" > "$1" &> /dev/null
# Bail out if write fails
if [[ $? -ne 0 ]]
then
echo "[!] Failed to write $2 to $1. Skipping."
return 1
fi
# Print new state
echo "[*] $1: $curval --> $2"
# Bail out if file does not exist
if [[ ! -f "$1" ]]
then
echo "[!] File $1 does not exist. Skipping."
return 1
fi
# Fetch the current key value
local curval=`cat "$1"`
# Bail out if value is already set
if [[ "$curval" == "$2" ]]
then
echo "[*] File $1 is already set to $2. Skipping."
return 0
fi
# Write the new value
echo "$2" > "$1" &> /dev/null
# Bail out if write fails
if [[ $? -ne 0 ]]
then
echo "[!] Failed to write $2 to $1. Skipping."
return 1
fi
# Print new state
echo "[*] $1: $curval --> $2"
}
# Print device information prior to execution
@ -89,7 +89,7 @@ echo "[*] ------------------------------"
echo "[*] Waiting for 60s of uptime."
while [[ `cat /proc/uptime | awk '{print $1}' | awk -F. '{print $1}'` -lt 60 ]]
do
sleep 1
sleep 1
done
echo "[*] Done waiting."
@ -139,61 +139,61 @@ ctl vm.watermark_scale_factor 100
# Scheduler features
if [[ -f "/sys/kernel/debug/sched_features" ]]
then
write /sys/kernel/debug/sched_features NO_GENTLE_FAIR_SLEEPER
write /sys/kernel/debug/sched_features NEXT_BUDDY
write /sys/kernel/debug/sched_features NO_STRICT_SKIP_BUDDY
write /sys/kernel/debug/sched_features NO_NONTASK_CAPACITY
write /sys/kernel/debug/sched_features TTWU_QUEUE
write /sys/kernel/debug/sched_features NO_GENTLE_FAIR_SLEEPER
write /sys/kernel/debug/sched_features NEXT_BUDDY
write /sys/kernel/debug/sched_features NO_STRICT_SKIP_BUDDY
write /sys/kernel/debug/sched_features NO_NONTASK_CAPACITY
write /sys/kernel/debug/sched_features TTWU_QUEUE
fi
# CPU
for cpu in /sys/devices/system/cpu/cpu*/cpufreq/
do
write "${cpu}scaling_min_freq" `cat "${cpu}cpuinfo_min_freq"`
write "${cpu}scaling_max_freq" `cat "${cpu}cpuinfo_max_freq"`
avail_govs=`cat "${cpu}scaling_available_governors"`
[[ "$avail_govs" == *"interactive"* ]] && write "${cpu}scaling_governor" interactive
[[ "$avail_govs" == *"schedutil"* ]] && write "${cpu}scaling_governor" schedutil
# Interactive-specific tweaks
if [[ -d "${cpu}interactive" ]]
then
write "${cpu}interactive/go_hispeed_load" 80
write "${cpu}interactive/hispeed_freq" `cat "${cpu}cpuinfo_max_freq"`
fi
# Schedutil-specific tweaks
if [[ -d "${cpu}schedutil" ]]
then
write "${cpu}schedutil/up_rate_limit_us" 0
write "${cpu}schedutil/down_rate_limit_us" 0
write "${cpu}schedutil/hispeed_load" 80
write "${cpu}schedutil/hispeed_freq" `cat "${cpu}cpuinfo_max_freq"`
fi
write "${cpu}scaling_min_freq" `cat "${cpu}cpuinfo_min_freq"`
write "${cpu}scaling_max_freq" `cat "${cpu}cpuinfo_max_freq"`
avail_govs=`cat "${cpu}scaling_available_governors"`
[[ "$avail_govs" == *"interactive"* ]] && write "${cpu}scaling_governor" interactive
[[ "$avail_govs" == *"schedutil"* ]] && write "${cpu}scaling_governor" schedutil
# Interactive-specific tweaks
if [[ -d "${cpu}interactive" ]]
then
write "${cpu}interactive/go_hispeed_load" 80
write "${cpu}interactive/hispeed_freq" `cat "${cpu}cpuinfo_max_freq"`
fi
# Schedutil-specific tweaks
if [[ -d "${cpu}schedutil" ]]
then
write "${cpu}schedutil/up_rate_limit_us" 0
write "${cpu}schedutil/down_rate_limit_us" 0
write "${cpu}schedutil/hispeed_load" 80
write "${cpu}schedutil/hispeed_freq" `cat "${cpu}cpuinfo_max_freq"`
fi
done
# CAF CPU boost
if [[ -d "/sys/module/cpu_boost" ]]
then
write "/sys/module/cpu_boost/parameters/input_boost_freq" 1200000
write "/sys/module/cpu_boost/parameters/input_boost_ms" 250
write "/sys/module/cpu_boost/parameters/input_boost_freq" 1200000
write "/sys/module/cpu_boost/parameters/input_boost_ms" 250
fi
# Stune
if [[ -d "/dev/stune" ]]
then
write /dev/stune/top-app/schedtune.prefer_idle 1
write /dev/stune/top-app/schedtune.prefer_idle 1
fi
# I/O
for queue in /sys/block/*/queue/
do
write "${queue}iostats" 0
write "${queue}read_ahead_kb" 0
write "${queue}nr_requests" 512
write "${queue}scheduler" noop
write "${queue}scheduler" none
write "${queue}iostats" 0
write "${queue}read_ahead_kb" 0
write "${queue}nr_requests" 512
write "${queue}scheduler" noop
write "${queue}scheduler" none
done
# ZRAM

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