From ad31cc97932ded7d3b79ce6d4e5d98684a2318aa Mon Sep 17 00:00:00 2001
From: Ark74 <ark@switnet.org>
Date: Thu, 13 May 2021 20:21:18 -0500
Subject: [PATCH] Include high performance system tuning as default

---
 mode/chp-mode.sh         | 35 +++-------------
 mode/jms-stu.sh          | 86 ++++++++++++++++++++++++++++++++++++++++
 quick_jibri_installer.sh |  7 ++++
 3 files changed, 99 insertions(+), 29 deletions(-)
 create mode 100644 mode/jms-stu.sh

diff --git a/mode/chp-mode.sh b/mode/chp-mode.sh
index 8e0f7e9..7c4b760 100644
--- a/mode/chp-mode.sh
+++ b/mode/chp-mode.sh
@@ -160,35 +160,12 @@ elif [ "$CHAT_DISABLED" = "yes" ] || [ -z "$CHAT_DISABLED" ]; then
 fi
 done
 
-#SYSTEM
-##Disable swap
-swapoff -a
-sed -ir  '/\sswap\s/s/^#?/#/' $FSTAB
-
-##Kernel
-#https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/5/html/tuning_and_optimizing_red_hat_enterprise_linux_for_oracle_9i_and_10g_databases/sect-oracle_9i_and_10g_tuning_guide-adjusting_network_settings-changing_network_kernel_settings
-sysctl -w net.core.rmem_default=262144
-sysctl -w net.core.wmem_default=262144
-sysctl -w net.core.rmem_max=262144
-sysctl -w net.core.wmem_max=262144
-set_once "net.core.rmem_default=262144" "/etc/sysctl.conf"
-set_once "net.core.wmem_default=262144" "/etc/sysctl.conf"
-set_once "net.core.rmem_max=262144" "/etc/sysctl.conf"
-set_once "net.core.wmem_max=262144" "/etc/sysctl.conf"
-
-#https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux_for_real_time/7/html/tuning_guide/reduce_tcp_performance_spikes
-sysctl -w net.ipv4.tcp_timestamps=0
-set_once "net.ipv4.tcp_timestamps=0" "/etc/sysctl.conf"
-
-#https://bugzilla.redhat.com/show_bug.cgi?id=1283676
-sysctl -w net.core.netdev_max_backlog=100000
-set_once "net.core.netdev_max_backlog=100000" "/etc/sysctl.conf"
-
-##nginx
-sed -i "s|worker_connections.*|worker_connections 2000;|" /etc/nginx/nginx.conf
-
-#Missing docs
-#sysctl -w net.ipv4.tcp_low_latency=1
+## JMS system tune up
+if [ "$MODE" = "debug" ]; then
+    bash $PWD/jms-stu.sh -m debug
+else
+    bash $PWD/jms-stu.sh
+fi
 
 #JVB2
 ##Loose up logging
diff --git a/mode/jms-stu.sh b/mode/jms-stu.sh
new file mode 100644
index 0000000..9041b15
--- /dev/null
+++ b/mode/jms-stu.sh
@@ -0,0 +1,86 @@
+#!/bin/bash
+# System-tune-up to remove system restrictions on a huge load of connections.
+# SwITNet Ltd © - 2021, https://switnet.net/
+# GPLv3 or later.
+
+#Check if user is root
+if ! [ $(id -u) = 0 ]; then
+   echo "You need to be root or have privileges!"
+   exit 0
+fi
+
+while getopts m: option
+do
+	case "${option}"
+	in
+		m) MODE=${OPTARG};;
+		\?) echo "Usage: sudo ./jms-stu.sh [-m debug]" && exit;;
+	esac
+done
+
+echo '
+#--------------------------------------------------
+# Starting system tune up configuration 
+# for high performance
+#--------------------------------------------------
+'
+
+#DEBUG
+if [ "$MODE" = "debug" ]; then
+set -x
+fi
+
+set_once() {
+if [ -z "$(awk '!/^ *#/ && NF {print}' "$2"|grep $(echo $1|awk -F '=' '{print$1}'))" ]; then
+  echo "Setting "$1" on "$2"..."
+  echo "$1" | tee -a "$2"
+else
+  echo " \"$(echo $1|awk -F '=' '{print$1}')\" seems present, skipping setting this variable"
+fi
+}
+
+##Disable swap
+swapoff -a
+sed -r  '/\sswap\s/s/^#?/#/' -i $FSTAB
+
+##Alternative swap tuning (need more documentation).
+#vm.swappiness=10
+#vm.vfs_cache_pressure=50
+
+##Kernel
+#https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/5/html/tuning_and_optimizing_red_hat_enterprise_linux_for_oracle_9i_and_10g_databases/sect-oracle_9i_and_10g_tuning_guide-adjusting_network_settings-changing_network_kernel_settings
+sysctl -w net.core.rmem_default=262144
+sysctl -w net.core.wmem_default=262144
+sysctl -w net.core.rmem_max=262144
+sysctl -w net.core.wmem_max=262144
+set_once "net.core.rmem_default=262144" "/etc/sysctl.conf"
+set_once "net.core.wmem_default=262144" "/etc/sysctl.conf"
+set_once "net.core.rmem_max=262144" "/etc/sysctl.conf"
+set_once "net.core.wmem_max=262144" "/etc/sysctl.conf"
+
+#system
+#https://jitsi.github.io/handbook/docs/devops-guide/devops-guide-quickstart
+sysctl -w DefaultLimitNOFILE=65000
+sysctl -w DefaultLimitNPROC=65000
+sysctl -w DefaultTasksMax=65000
+set_once "DefaultLimitNOFILE=65000" "/etc/sysctl.conf"
+set_once "DefaultLimitNPROC=65000" "/etc/sysctl.conf"
+set_once "DefaultTasksMax=65000" "/etc/sysctl.conf"
+
+#https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux_for_real_time/7/html/tuning_guide/reduce_tcp_performance_spikes
+sysctl -w net.ipv4.tcp_timestamps=0
+set_once "net.ipv4.tcp_timestamps=0" "/etc/sysctl.conf"
+
+#https://bugzilla.redhat.com/show_bug.cgi?id=1283676
+sysctl -w net.core.netdev_max_backlog=100000
+set_once "net.core.netdev_max_backlog=100000" "/etc/sysctl.conf"
+
+##nginx
+sed -i "s|worker_connections.*|worker_connections 2000;|" /etc/nginx/nginx.conf
+nginx -t
+
+#Missing docs
+#sysctl -w net.ipv4.tcp_low_latency=1
+
+echo "System tune up...
+  Done!"
diff --git a/quick_jibri_installer.sh b/quick_jibri_installer.sh
index 4531737..bd9d43e 100644
--- a/quick_jibri_installer.sh
+++ b/quick_jibri_installer.sh
@@ -415,6 +415,13 @@ Remove Chrome warning...
 mkdir -p /etc/opt/chrome/policies/managed
 echo '{ "CommandLineFlagSecurityWarningsEnabled": false }' > $GCMP_JSON
 
+## JMS system tune up
+if [ "$MODE" = "debug" ]; then
+    bash $PWD/mode/jms-stu.sh -m debug
+else
+    bash $PWD/mode/jms-stu.sh
+fi
+
 echo '
 ########################################################################
                     Please Setup Your Installation