mirror of
https://github.com/tytydraco/KTweak.git
synced 2024-11-10 07:10:25 +00:00
Update gitignore
Signed-off-by: Tyler Nijmeh <tylernij@gmail.com>
This commit is contained in:
Tyler Nijmeh
parent
8474ec7ebe
commit
70b201501a
1
.gitignore
vendored
1
.gitignore
vendored
@ -1 +1,2 @@
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KTweak-MM*.zip
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KTweak-MM*.zip
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system/bin/ktweak
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2
build.sh
2
build.sh
@ -25,6 +25,8 @@ do
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chmod +x "$SCRIPT_PATH"
|
chmod +x "$SCRIPT_PATH"
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||||||
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echo
|
echo
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zip -0 -r -ll "$ZIP" META-INF/ build.sh customize.sh module.prop service.sh system/
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done
|
done
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|
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echo " * Done!"
|
echo " * Done!"
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208
ktweak
208
ktweak
@ -1,208 +0,0 @@
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|||||||
#!/usr/bin/env bash
|
|
||||||
# Written by Draco (tytydraco @ GitHub)
|
|
||||||
|
|
||||||
# The name of the current branch for logging purposes
|
|
||||||
BRANCH="latency"
|
|
||||||
|
|
||||||
# Maximum unsigned integer size in C
|
|
||||||
UINT_MAX="4294967295"
|
|
||||||
|
|
||||||
# Duration in nanoseconds of one scheduling period
|
|
||||||
SCHED_PERIOD="$((1 * 1000 * 1000))"
|
|
||||||
|
|
||||||
# How many tasks should we have at a maximum in one scheduling period
|
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||||||
SCHED_TASKS="10"
|
|
||||||
|
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||||||
write() {
|
|
||||||
# Bail out if file does not exist
|
|
||||||
[[ ! -f "$1" ]] && return 1
|
|
||||||
|
|
||||||
# Make file writable in case it is not already
|
|
||||||
chmod +w "$1" 2> /dev/null
|
|
||||||
|
|
||||||
# Write the new value and bail if there's an error
|
|
||||||
if ! echo "$2" > "$1" 2> /dev/null
|
|
||||||
then
|
|
||||||
echo "Failed: $1 → $2"
|
|
||||||
return 1
|
|
||||||
fi
|
|
||||||
|
|
||||||
# Log the success
|
|
||||||
echo "$1 → $2"
|
|
||||||
}
|
|
||||||
|
|
||||||
# Check for root permissions and bail if not granted
|
|
||||||
if [[ "$(id -u)" -ne 0 ]]
|
|
||||||
then
|
|
||||||
echo "No root permissions. Exiting."
|
|
||||||
exit 1
|
|
||||||
fi
|
|
||||||
|
|
||||||
# Detect if we are running on Android
|
|
||||||
grep -q android /proc/cmdline && ANDROID=true
|
|
||||||
|
|
||||||
# Log the date and time for records sake
|
|
||||||
echo "Time of execution: $(date)"
|
|
||||||
echo "Branch: $BRANCH"
|
|
||||||
|
|
||||||
# Sync to data in the rare case a device crashes
|
|
||||||
sync
|
|
||||||
|
|
||||||
# Limit max perf event processing time to this much CPU usage
|
|
||||||
write /proc/sys/kernel/perf_cpu_time_max_percent 3
|
|
||||||
|
|
||||||
# Group tasks for less stutter but less throughput
|
|
||||||
write /proc/sys/kernel/sched_autogroup_enabled 1
|
|
||||||
|
|
||||||
# Execute child process before parent after fork
|
|
||||||
write /proc/sys/kernel/sched_child_runs_first 1
|
|
||||||
|
|
||||||
# Preliminary requirement for the following values
|
|
||||||
write /proc/sys/kernel/sched_tunable_scaling 0
|
|
||||||
|
|
||||||
# Reduce the maximum scheduling period for lower latency
|
|
||||||
write /proc/sys/kernel/sched_latency_ns "$SCHED_PERIOD"
|
|
||||||
|
|
||||||
# Schedule this ratio of tasks in the guarenteed sched period
|
|
||||||
write /proc/sys/kernel/sched_min_granularity_ns "$((SCHED_PERIOD / SCHED_TASKS))"
|
|
||||||
|
|
||||||
# Require preeptive tasks to surpass half of a sched period in vmruntime
|
|
||||||
write /proc/sys/kernel/sched_wakeup_granularity_ns "$((SCHED_PERIOD / 2))"
|
|
||||||
|
|
||||||
# Reduce the frequency of task migrations
|
|
||||||
write /proc/sys/kernel/sched_migration_cost_ns 5000000
|
|
||||||
|
|
||||||
# Always allow sched boosting on top-app tasks
|
|
||||||
[[ "$ANDROID" == true ]] && write /proc/sys/kernel/sched_min_task_util_for_colocation 0
|
|
||||||
|
|
||||||
# Improve real time latencies by reducing the scheduler migration time
|
|
||||||
write /proc/sys/kernel/sched_nr_migrate 4
|
|
||||||
|
|
||||||
# Disable scheduler statistics to reduce overhead
|
|
||||||
write /proc/sys/kernel/sched_schedstats 0
|
|
||||||
|
|
||||||
# Disable unnecessary printk logging
|
|
||||||
write /proc/sys/kernel/printk_devkmsg off
|
|
||||||
|
|
||||||
# Start non-blocking writeback later
|
|
||||||
write /proc/sys/vm/dirty_background_ratio 3
|
|
||||||
|
|
||||||
# Start blocking writeback later
|
|
||||||
write /proc/sys/vm/dirty_ratio 30
|
|
||||||
|
|
||||||
# Require dirty memory to stay in memory for longer
|
|
||||||
write /proc/sys/vm/dirty_expire_centisecs 3000
|
|
||||||
|
|
||||||
# Run the dirty memory flusher threads less often
|
|
||||||
write /proc/sys/vm/dirty_writeback_centisecs 3000
|
|
||||||
|
|
||||||
# Disable read-ahead for swap devices
|
|
||||||
write /proc/sys/vm/page-cluster 0
|
|
||||||
|
|
||||||
# Update /proc/stat less often to reduce jitter
|
|
||||||
write /proc/sys/vm/stat_interval 10
|
|
||||||
|
|
||||||
# Swap to the swap device at a fair rate
|
|
||||||
write /proc/sys/vm/swappiness 100
|
|
||||||
|
|
||||||
# Prioritize page cache over simple file structure nodes
|
|
||||||
write /proc/sys/vm/vfs_cache_pressure 200
|
|
||||||
|
|
||||||
# Enable Explicit Congestion Control
|
|
||||||
write /proc/sys/net/ipv4/tcp_ecn 1
|
|
||||||
|
|
||||||
# Enable fast socket open for receiver and sender
|
|
||||||
write /proc/sys/net/ipv4/tcp_fastopen 3
|
|
||||||
|
|
||||||
# Disable SYN cookies
|
|
||||||
write /proc/sys/net/ipv4/tcp_syncookies 0
|
|
||||||
|
|
||||||
if [[ -f "/sys/kernel/debug/sched_features" ]]
|
|
||||||
then
|
|
||||||
# Consider scheduling tasks that are eager to run
|
|
||||||
write /sys/kernel/debug/sched_features NEXT_BUDDY
|
|
||||||
|
|
||||||
# Some sources report large latency spikes during large migrations
|
|
||||||
write /sys/kernel/debug/sched_features NO_TTWU_QUEUE
|
|
||||||
fi
|
|
||||||
|
|
||||||
[[ "$ANDROID" == true ]] && if [[ -d "/dev/stune/" ]]
|
|
||||||
then
|
|
||||||
# Prefer to schedule top-app tasks on idle CPUs
|
|
||||||
write /dev/stune/top-app/schedtune.prefer_idle 1
|
|
||||||
|
|
||||||
# Mark top-app as boosted, find high-performing CPUs
|
|
||||||
write /dev/stune/top-app/schedtune.boost 1
|
|
||||||
fi
|
|
||||||
|
|
||||||
# Loop over each CPU in the system
|
|
||||||
for cpu in /sys/devices/system/cpu/cpu*/cpufreq
|
|
||||||
do
|
|
||||||
# Fetch the available governors from the CPU
|
|
||||||
avail_govs="$(cat "$cpu/scaling_available_governors")"
|
|
||||||
|
|
||||||
# Attempt to set the governor in this order
|
|
||||||
for governor in schedutil interactive
|
|
||||||
do
|
|
||||||
# Once a matching governor is found, set it and break for this CPU
|
|
||||||
if [[ "$avail_govs" == *"$governor"* ]]
|
|
||||||
then
|
|
||||||
write "$cpu/scaling_governor" "$governor"
|
|
||||||
break
|
|
||||||
fi
|
|
||||||
done
|
|
||||||
done
|
|
||||||
|
|
||||||
# Apply governor specific tunables for schedutil
|
|
||||||
find /sys/devices/system/cpu/ -name schedutil -type d | while IFS= read -r governor
|
|
||||||
do
|
|
||||||
# Consider changing frequencies once per scheduling period
|
|
||||||
write "$governor/up_rate_limit_us" 0
|
|
||||||
write "$governor/down_rate_limit_us" 0
|
|
||||||
write "$governor/rate_limit_us" 0
|
|
||||||
|
|
||||||
# Jump to hispeed frequency at this load percentage
|
|
||||||
write "$governor/hispeed_load" 85
|
|
||||||
write "$governor/hispeed_freq" "$UINT_MAX"
|
|
||||||
done
|
|
||||||
|
|
||||||
# Apply governor specific tunables for interactive
|
|
||||||
find /sys/devices/system/cpu/ -name interactive -type d | while IFS= read -r governor
|
|
||||||
do
|
|
||||||
# Consider changing frequencies once per scheduling period
|
|
||||||
write "$governor/timer_rate" 0
|
|
||||||
write "$governor/min_sample_time" 0
|
|
||||||
|
|
||||||
# Jump to hispeed frequency at this load percentage
|
|
||||||
write "$governor/go_hispeed_load" 85
|
|
||||||
write "$governor/hispeed_freq" "$UINT_MAX"
|
|
||||||
done
|
|
||||||
|
|
||||||
for queue in /sys/block/*/queue
|
|
||||||
do
|
|
||||||
# Choose the first governor available
|
|
||||||
avail_scheds="$(cat "$queue/scheduler")"
|
|
||||||
for sched in cfq noop kyber bfq mq-deadline none
|
|
||||||
do
|
|
||||||
if [[ "$avail_scheds" == *"$sched"* ]]
|
|
||||||
then
|
|
||||||
write "$queue/scheduler" "$sched"
|
|
||||||
break
|
|
||||||
fi
|
|
||||||
done
|
|
||||||
|
|
||||||
# Do not use I/O as a source of randomness
|
|
||||||
write "$queue/add_random" 0
|
|
||||||
|
|
||||||
# Disable I/O statistics accounting
|
|
||||||
write "$queue/iostats" 0
|
|
||||||
|
|
||||||
# Reduce heuristic read-ahead in exchange for I/O latency
|
|
||||||
write "$queue/read_ahead_kb" 32
|
|
||||||
|
|
||||||
# Reduce the maximum number of I/O requests in exchange for latency
|
|
||||||
write "$queue/nr_requests" 32
|
|
||||||
done
|
|
||||||
|
|
||||||
# Always return success, even if the last write fails
|
|
||||||
exit 0
|
|
||||||
@ -1,208 +0,0 @@
|
|||||||
#!/system/bin/sh
|
|
||||||
# Written by Draco (tytydraco @ GitHub)
|
|
||||||
|
|
||||||
# The name of the current branch for logging purposes
|
|
||||||
BRANCH="throughput"
|
|
||||||
|
|
||||||
# Maximum unsigned integer size in C
|
|
||||||
UINT_MAX="4294967295"
|
|
||||||
|
|
||||||
# Duration in nanoseconds of one scheduling period
|
|
||||||
SCHED_PERIOD="$((10 * 1000 * 1000))"
|
|
||||||
|
|
||||||
# How many tasks should we have at a maximum in one scheduling period
|
|
||||||
SCHED_TASKS="6"
|
|
||||||
|
|
||||||
write() {
|
|
||||||
# Bail out if file does not exist
|
|
||||||
[[ ! -f "$1" ]] && return 1
|
|
||||||
|
|
||||||
# Make file writable in case it is not already
|
|
||||||
chmod +w "$1" 2> /dev/null
|
|
||||||
|
|
||||||
# Write the new value and bail if there's an error
|
|
||||||
if ! echo "$2" > "$1" 2> /dev/null
|
|
||||||
then
|
|
||||||
echo "Failed: $1 → $2"
|
|
||||||
return 1
|
|
||||||
fi
|
|
||||||
|
|
||||||
# Log the success
|
|
||||||
echo "$1 → $2"
|
|
||||||
}
|
|
||||||
|
|
||||||
# Check for root permissions and bail if not granted
|
|
||||||
if [[ "$(id -u)" -ne 0 ]]
|
|
||||||
then
|
|
||||||
echo "No root permissions. Exiting."
|
|
||||||
exit 1
|
|
||||||
fi
|
|
||||||
|
|
||||||
# Detect if we are running on Android
|
|
||||||
grep -q android /proc/cmdline && ANDROID=true
|
|
||||||
|
|
||||||
# Log the date and time for records sake
|
|
||||||
echo "Time of execution: $(date)"
|
|
||||||
echo "Branch: $BRANCH"
|
|
||||||
|
|
||||||
# Sync to data in the rare case a device crashes
|
|
||||||
sync
|
|
||||||
|
|
||||||
# Limit max perf event processing time to this much CPU usage
|
|
||||||
write /proc/sys/kernel/perf_cpu_time_max_percent 20
|
|
||||||
|
|
||||||
# Sacrifice latency for throughput when grouping tasks
|
|
||||||
write /proc/sys/kernel/sched_autogroup_enabled 0
|
|
||||||
|
|
||||||
# Process child-parent forks naturally
|
|
||||||
write /proc/sys/kernel/sched_child_runs_first 0
|
|
||||||
|
|
||||||
# Preliminary requirement for the following values
|
|
||||||
write /proc/sys/kernel/sched_tunable_scaling 0
|
|
||||||
|
|
||||||
# Reduce the maximum scheduling period for lower latency
|
|
||||||
write /proc/sys/kernel/sched_latency_ns "$SCHED_PERIOD"
|
|
||||||
|
|
||||||
# Schedule this ratio of tasks in the guarenteed sched period
|
|
||||||
write /proc/sys/kernel/sched_min_granularity_ns "$((SCHED_PERIOD / SCHED_TASKS))"
|
|
||||||
|
|
||||||
# Require preeptive tasks to surpass half of a sched period in vmruntime
|
|
||||||
write /proc/sys/kernel/sched_wakeup_granularity_ns "$((SCHED_PERIOD / 2))"
|
|
||||||
|
|
||||||
# Reduce the frequency of task migrations
|
|
||||||
write /proc/sys/kernel/sched_migration_cost_ns 5000000
|
|
||||||
|
|
||||||
# Always allow sched boosting on top-app tasks
|
|
||||||
[[ "$ANDROID" == true ]] && write /proc/sys/kernel/sched_min_task_util_for_colocation 0
|
|
||||||
|
|
||||||
# Improve real time latencies by reducing the scheduler migration time
|
|
||||||
write /proc/sys/kernel/sched_nr_migrate 128
|
|
||||||
|
|
||||||
# Disable scheduler statistics to reduce overhead
|
|
||||||
write /proc/sys/kernel/sched_schedstats 0
|
|
||||||
|
|
||||||
# Disable unnecessary printk logging
|
|
||||||
write /proc/sys/kernel/printk_devkmsg off
|
|
||||||
|
|
||||||
# Start non-blocking writeback later
|
|
||||||
write /proc/sys/vm/dirty_background_ratio 15
|
|
||||||
|
|
||||||
# Start blocking writeback later
|
|
||||||
write /proc/sys/vm/dirty_ratio 30
|
|
||||||
|
|
||||||
# Require dirty memory to stay in memory for longer
|
|
||||||
write /proc/sys/vm/dirty_expire_centisecs 3000
|
|
||||||
|
|
||||||
# Run the dirty memory flusher threads less often
|
|
||||||
write /proc/sys/vm/dirty_writeback_centisecs 3000
|
|
||||||
|
|
||||||
# Disable read-ahead for swap devices
|
|
||||||
write /proc/sys/vm/page-cluster 0
|
|
||||||
|
|
||||||
# Update /proc/stat less often to reduce jitter
|
|
||||||
write /proc/sys/vm/stat_interval 10
|
|
||||||
|
|
||||||
# Swap to the swap device at a fair rate
|
|
||||||
write /proc/sys/vm/swappiness 100
|
|
||||||
|
|
||||||
# Allow inodes and dentries to build up a larger cache
|
|
||||||
write /proc/sys/vm/vfs_cache_pressure 80
|
|
||||||
|
|
||||||
# Enable Explicit Congestion Control
|
|
||||||
write /proc/sys/net/ipv4/tcp_ecn 1
|
|
||||||
|
|
||||||
# Enable fast socket open for receiver and sender
|
|
||||||
write /proc/sys/net/ipv4/tcp_fastopen 3
|
|
||||||
|
|
||||||
# Disable SYN cookies
|
|
||||||
write /proc/sys/net/ipv4/tcp_syncookies 0
|
|
||||||
|
|
||||||
if [[ -f "/sys/kernel/debug/sched_features" ]]
|
|
||||||
then
|
|
||||||
# Consider scheduling tasks that are eager to run
|
|
||||||
write /sys/kernel/debug/sched_features NEXT_BUDDY
|
|
||||||
|
|
||||||
# Schedule tasks on their origin CPU if possible
|
|
||||||
write /sys/kernel/debug/sched_features TTWU_QUEUE
|
|
||||||
fi
|
|
||||||
|
|
||||||
[[ "$ANDROID" == true ]] && if [[ -d "/dev/stune/" ]]
|
|
||||||
then
|
|
||||||
# We are not concerned with prioritizing latency
|
|
||||||
write /dev/stune/top-app/schedtune.prefer_idle 0
|
|
||||||
|
|
||||||
# Mark top-app as boosted, find high-performing CPUs
|
|
||||||
write /dev/stune/top-app/schedtune.boost 1
|
|
||||||
fi
|
|
||||||
|
|
||||||
# Loop over each CPU in the system
|
|
||||||
for cpu in /sys/devices/system/cpu/cpu*/cpufreq
|
|
||||||
do
|
|
||||||
# Fetch the available governors from the CPU
|
|
||||||
avail_govs="$(cat "$cpu/scaling_available_governors")"
|
|
||||||
|
|
||||||
# Attempt to set the governor in this order
|
|
||||||
for governor in schedutil interactive
|
|
||||||
do
|
|
||||||
# Once a matching governor is found, set it and break for this CPU
|
|
||||||
if [[ "$avail_govs" == *"$governor"* ]]
|
|
||||||
then
|
|
||||||
write "$cpu/scaling_governor" "$governor"
|
|
||||||
break
|
|
||||||
fi
|
|
||||||
done
|
|
||||||
done
|
|
||||||
|
|
||||||
# Apply governor specific tunables for schedutil
|
|
||||||
find /sys/devices/system/cpu/ -name schedutil -type d | while IFS= read -r governor
|
|
||||||
do
|
|
||||||
# Consider changing frequencies once per scheduling period
|
|
||||||
write "$governor/up_rate_limit_us" "$((SCHED_PERIOD / 1000))"
|
|
||||||
write "$governor/down_rate_limit_us" "$((4 * SCHED_PERIOD / 1000))"
|
|
||||||
write "$governor/rate_limit_us" "$((SCHED_PERIOD / 1000))"
|
|
||||||
|
|
||||||
# Jump to hispeed frequency at this load percentage
|
|
||||||
write "$governor/hispeed_load" 85
|
|
||||||
write "$governor/hispeed_freq" "$UINT_MAX"
|
|
||||||
done
|
|
||||||
|
|
||||||
# Apply governor specific tunables for interactive
|
|
||||||
find /sys/devices/system/cpu/ -name interactive -type d | while IFS= read -r governor
|
|
||||||
do
|
|
||||||
# Consider changing frequencies once per scheduling period
|
|
||||||
write "$governor/timer_rate" "$((SCHED_PERIOD / 1000))"
|
|
||||||
write "$governor/min_sample_time" "$((SCHED_PERIOD / 1000))"
|
|
||||||
|
|
||||||
# Jump to hispeed frequency at this load percentage
|
|
||||||
write "$governor/go_hispeed_load" 85
|
|
||||||
write "$governor/hispeed_freq" "$UINT_MAX"
|
|
||||||
done
|
|
||||||
|
|
||||||
for queue in /sys/block/*/queue
|
|
||||||
do
|
|
||||||
# Choose the first governor available
|
|
||||||
avail_scheds="$(cat "$queue/scheduler")"
|
|
||||||
for sched in cfq noop kyber bfq mq-deadline none
|
|
||||||
do
|
|
||||||
if [[ "$avail_scheds" == *"$sched"* ]]
|
|
||||||
then
|
|
||||||
write "$queue/scheduler" "$sched"
|
|
||||||
break
|
|
||||||
fi
|
|
||||||
done
|
|
||||||
|
|
||||||
# Do not use I/O as a source of randomness
|
|
||||||
write "$queue/add_random" 0
|
|
||||||
|
|
||||||
# Disable I/O statistics accounting
|
|
||||||
write "$queue/iostats" 0
|
|
||||||
|
|
||||||
# Sacrifice I/O and memory efficiency for a possible throughput gain
|
|
||||||
write "$queue/read_ahead_kb" 256
|
|
||||||
|
|
||||||
# Buffer more requests at once
|
|
||||||
write "$queue/nr_requests" 512
|
|
||||||
done
|
|
||||||
|
|
||||||
# Always return success, even if the last write fails
|
|
||||||
exit 0
|
|
||||||
Loading…
Reference in New Issue
Block a user