From bbee0103dd9310e7fc7de08265da87f8be62dc33 Mon Sep 17 00:00:00 2001
From: jerry048 <jw950@jerry048.com>
Date: Tue, 28 Feb 2023 14:53:06 +0800
Subject: [PATCH] Update tweaking.sh

---
 tweaking.sh | 35 +++++++++++++++--------------------
 1 file changed, 15 insertions(+), 20 deletions(-)

diff --git a/tweaking.sh b/tweaking.sh
index 57a185b..ae8ef3c 100644
--- a/tweaking.sh
+++ b/tweaking.sh
@@ -45,7 +45,7 @@ function Network_Other_Tweaking {
     apt-get -qqy install net-tools
     ifconfig $interface txqueuelen 10000
     sleep 1
-    #Other 2
+    #Increaseing the congestion windows
     iproute=$(ip -o -4 route show to default)
     ip route change $iproute initcwnd 25 initrwnd 25
 }
@@ -57,35 +57,30 @@ function Scheduler_Tweaking {
     normal_1; echo "Changing I/O Scheduler"; warn_2
     i=1
     drive=()
+    #List out all the available drives
     disk=$(lsblk -nd --output NAME)
+    #Count the number of drives
     diskno=$(echo $disk | awk '{print NF}')
+    #Putting the device name in an array to loop through later
     while [ $i -le $diskno ]
     do
 	    device=$(echo $disk | awk -v i=$i '{print $i}')
 	    drive+=($device)
 	    i=$(( $i + 1 ))
     done
-    i=1
-    x=0
-    disk_name=$(printf $(lsblk | grep -m1 'disk' | awk '{print $1}'))
-    disktype=$(cat /sys/block/$disk_name/queue/rotational)
-    if [ "${disktype}" == 0 ]; then
-	    while [ $i -le $diskno ]
-	    do
-		    diskname=$(eval echo ${drive["$x"]})
+    i=1 x=0
+    #Changing the scheduler per disk depending on whether they are HDD or SSD
+    while [ $i -le $diskno ]
+    do
+	    diskname=$(eval echo ${drive["$x"]})
+	    disktype=$(cat /sys/block/$diskname/queue/rotational)
+	    if [ "${disktype}" == 0 ]; then		
 		    echo kyber > /sys/block/$diskname/queue/scheduler
-		    i=$(( $i + 1 ))
-		    x=$(( $x + 1 ))
-	    done
-    else
-	    while [ $i -le $diskno ]
-	    do
-		    diskname=$(eval echo ${drive["$x"]})
+	    else
 		    echo mq-deadline > /sys/block/$diskname/queue/scheduler
-		    i=$(( $i + 1 ))
-		    x=$(( $x + 1 ))
-	    done
-    fi
+	    fi
+    i=$(( $i + 1 )) x=$(( $x + 1 ))
+    done
 }