276a5c6fcd
* Gather all performance related items in one place and drop all deprecated services. Change-Id: I4dbdc164c60136b0957a8c1ff67feafbaf471747
112 lines
3.9 KiB
Bash
112 lines
3.9 KiB
Bash
#=============================================================================
|
|
# Copyright (c) 2021 Qualcomm Technologies, Inc.
|
|
# All Rights Reserved.
|
|
# Confidential and Proprietary - Qualcomm Technologies, Inc.
|
|
#
|
|
# Copyright (c) 2012-2013, 2016-2020, The Linux Foundation. All rights reserved.
|
|
#
|
|
# Redistribution and use in source and binary forms, with or without
|
|
# modification, are permitted provided that the following conditions are
|
|
# met:
|
|
# * Redistributions of source code must retain the above copyright
|
|
# notice, this list of conditions and the following disclaimer.
|
|
# * Redistributions in binary form must reproduce the above
|
|
# copyright notice, this list of conditions and the following
|
|
# disclaimer in the documentation and/or other materials provided
|
|
# with the distribution.
|
|
# * Neither the name of The Linux Foundation nor the names of its
|
|
# contributors may be used to endorse or promote products derived
|
|
# from this software without specific prior written permission.
|
|
#
|
|
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
|
|
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
|
|
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
|
|
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
|
|
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
|
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
|
|
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
|
|
# IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
#=============================================================================
|
|
|
|
function configure_zram_parameters() {
|
|
MemTotalStr=`cat /proc/meminfo | grep MemTotal`
|
|
MemTotal=${MemTotalStr:16:8}
|
|
|
|
# Zram disk - 75% for < 2GB devices .
|
|
# For >2GB devices, size = 50% of RAM size. Limit the size to 4GB.
|
|
|
|
let RamSizeGB="( $MemTotal / 1048576 ) + 1"
|
|
diskSizeUnit=M
|
|
if [ $RamSizeGB -le 2 ]; then
|
|
let zRamSizeMB="( $RamSizeGB * 1024 ) * 3 / 4"
|
|
else
|
|
let zRamSizeMB="( $RamSizeGB * 1024 ) / 2"
|
|
fi
|
|
|
|
# use MB avoid 32 bit overflow
|
|
if [ $zRamSizeMB -gt 4096 ]; then
|
|
let zRamSizeMB=4096
|
|
fi
|
|
|
|
if [ -f /sys/block/zram0/disksize ]; then
|
|
if [ -f /sys/block/zram0/use_dedup ]; then
|
|
echo 1 > /sys/block/zram0/use_dedup
|
|
fi
|
|
echo "$zRamSizeMB""$diskSizeUnit" > /sys/block/zram0/disksize
|
|
|
|
# ZRAM may use more memory than it saves if SLAB_STORE_USER
|
|
# debug option is enabled.
|
|
if [ -e /sys/kernel/slab/zs_handle ]; then
|
|
echo 0 > /sys/kernel/slab/zs_handle/store_user
|
|
fi
|
|
if [ -e /sys/kernel/slab/zspage ]; then
|
|
echo 0 > /sys/kernel/slab/zspage/store_user
|
|
fi
|
|
|
|
mkswap /dev/block/zram0
|
|
swapon /dev/block/zram0 -p 32758
|
|
fi
|
|
}
|
|
|
|
function configure_read_ahead_kb_values() {
|
|
MemTotalStr=`cat /proc/meminfo | grep MemTotal`
|
|
MemTotal=${MemTotalStr:16:8}
|
|
|
|
dmpts=$(ls /sys/block/*/queue/read_ahead_kb | grep -e dm -e mmc)
|
|
|
|
# Set 128 for <= 3GB &
|
|
# set 512 for >= 4GB targets.
|
|
if [ $MemTotal -le 3145728 ]; then
|
|
ra_kb=128
|
|
else
|
|
ra_kb=128
|
|
fi
|
|
if [ -f /sys/block/mmcblk0/bdi/read_ahead_kb ]; then
|
|
echo $ra_kb > /sys/block/mmcblk0/bdi/read_ahead_kb
|
|
fi
|
|
if [ -f /sys/block/mmcblk0rpmb/bdi/read_ahead_kb ]; then
|
|
echo $ra_kb > /sys/block/mmcblk0rpmb/bdi/read_ahead_kb
|
|
fi
|
|
for dm in $dmpts; do
|
|
echo $ra_kb > $dm
|
|
done
|
|
}
|
|
|
|
function configure_memory_parameters() {
|
|
# Set Memory parameters.
|
|
|
|
# Set swappiness to 100 for all targets
|
|
echo 100 > /proc/sys/vm/swappiness
|
|
|
|
# Disable wsf for all targets beacause we are using efk.
|
|
# wsf Range : 1..1000 So set to bare minimum value 1.
|
|
echo 1 > /proc/sys/vm/watermark_scale_factor
|
|
configure_zram_parameters
|
|
configure_read_ahead_kb_values
|
|
|
|
#Spawn 2 kswapd threads which can help in fast reclaiming of pages
|
|
echo 2 > /proc/sys/vm/kswapd_threads
|
|
}
|