config.info

#!/bin/bash

#   Slackware Studio
#   Copyright (C) 2022  Martin Bångens
#
#   This program is free software: you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation, either version 3 of the License, or
#   (at your option) any later version.
#
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with this program.  If not, see <https://www.gnu.org/licenses/>.
#
##############################################################################################################################
## You can run this or apply this manually
## This was written for Slackware 15
## Be careful and examine each command 
##############################################################################################################################
## This will make wine able to use a lower virtual memory address
## for some servers this this can be a security risk. But for a normal
## desktop user that want to runs wine plugins, its a bit silly.
## 
## /etc/sysctl.d/mmap_restriction_override.conf
#
# vm.mmap_min_addr = 65536
#
## Set default SCALING_GOVERNOR to performance
## You can do this in both
##
## /etc/default/cpufreq (this file override the other)
## /etc/rc.d/rc.cpufreq
#
# SCALING_GOVERNOR=performance
#
## You know about this one :) its a standard for Linux music producers
##
## /etc/security/limits.d/audio.conf
#
# @audio - memlock unlimited
# @audio - rtprio 95
# @audio - nofile 1048576
#
## Make pulseaudio lock memory
##
## /etc/pulse/daemon.conf
#
# ; lock-memory = yes
#
## This is important for real time audio software to be able to use
## timers and have permission to access them
##
## /etc/udev/rules.d/40-timer-permissions.rules
#
# KERNEL=="rtc0", GROUP="audio"
# KERNEL=="hpet", GROUP="audio"
#
## Make sure some default kernel parameters are set more real-time friendly
##
## /etc/sysctl.d/daw.conf
#
# dev.hpet.max-user-freq = 3072
# fs.inotify.max_user_watches = 524288
# vm.swappiness = 10
#
## Xorg have a Max clients allowed that seems to only change by a flag
## when Xserver starts. It defaults to 256, Yes sometimes it can be
## a problem if you have a lot of plugins in a big project. Some DAW's
## will lets plugins run in containers and deactivate them when not used
## by any track. Yes it seems ridiculous, this should be set to 1024.
##
## /etc/x11/xdm/Xservers
#
# :0 local /usr/bin/X :0 -maxclients 1024
#
## /etc/sddm.conf
#
# ServerArguments=-nolisten tcp -maxclients 1024
#
##############################################################################################################################
echo "vm.mmap_min_addr = 65536"  >> /etc/sysctl.d/mmap_restriction_override.conf
sed -i 's/SCALING_GOVERNOR=ondemand/SCALING_GOVERNOR=performance/g' /etc/rc.d/rc.cpufreq
echo -e "@audio - memlock unlimited\n@audio - rtprio 95\n@audio - nofile 1048576" >> /etc/security/limits.d/audio.conf
sed -i 's/; lock-memory = no/; lock-memory = yes/g' /etc/pulse/daemon.conf
echo -e "KERNEL==\"rtc0\", GROUP=\"audio\"\nKERNEL==\"hpet\", GROUP=\"audio\"" >> /etc/udev/rules.d/40-timer-permissions.rules
echo -e "dev.hpet.max-user-freq = 3072\nfs.inotify.max_user_watches = 524288\nvm.swappiness = 10" >> /etc/sysctl.d/daw.conf
sed -i 's|:0 local /usr/bin/X :0|:0 local /usr/bin/X :0 -maxclients 1024|g' /etc/X11/xdm/Xservers
sed -i 's|ServerArguments=-nolisten tcp|ServerArguments=-nolisten tcp -maxclients 1024|g' /etc/sddm.conf

echo "reboot the computer"