Various sysctl cleanups

usr/lib/sysctl.d/99-cachyos-settings.conf

@@ -5,7 +5,7 @@ vm.swappiness = 100
 
 # The value controls the tendency of the kernel to reclaim the memory which is used for caching of directory and inode objects (VFS cache).
 # Lowering it from the default value of 100 makes the kernel less inclined to reclaim VFS cache (do not set it to 0, this may produce out-of-memory conditions)
-#vm.vfs_cache_pressure=50
+vm.vfs_cache_pressure=50
 
 # Contains, as a bytes of total available memory that contains free pages and reclaimable
 # pages, the number of pages at which a process which is generating disk writes will itself start
@@ -23,12 +23,6 @@ vm.page-cluster = 0
 # dirty data.
 vm.dirty_background_bytes = 134217728
 
-# This tunable is used to define when dirty data is old enough to be eligible for writeout by the
-# kernel flusher threads.  It is expressed in 100'ths of a second.  Data which has been dirty
-# in-memory for longer than this interval will be written out next time a flusher thread wakes up
-# (Default is 3000).
-#vm.dirty_expire_centisecs = 3000
-
 # The kernel flusher threads will periodically wake up and write old data out to disk.  This
 # tunable expresses the interval between those wakeups, in 100'ths of a second (Default is 500).
 vm.dirty_writeback_centisecs = 1500
@@ -49,24 +43,12 @@ kernel.kptr_restrict = 2
 # Disable Kexec, which allows replacing the current running kernel.
 kernel.kexec_load_disabled = 1
 
-# Increase the maximum connections
-# The upper limit on how many connections the kernel will accept (default 4096 since kernel version 5.6):
-net.core.somaxconn = 8192
-
 # Enable TCP Fast Open
 # TCP Fast Open is an extension to the transmission control protocol (TCP) that helps reduce network latency
 # by enabling data to be exchanged during the sender’s initial TCP SYN [3].
 # Using the value 3 instead of the default 1 allows TCP Fast Open for both incoming and outgoing connections:
 net.ipv4.tcp_fastopen = 3
 
-# Enable BBR3
-# The BBR3 congestion control algorithm can help achieve higher bandwidths and lower latencies for internet traffic
-net.ipv4.tcp_congestion_control = bbr
-
-# TCP SYN cookie protection
-# Helps protect against SYN flood attacks. Only kicks in when net.ipv4.tcp_max_syn_backlog is reached:
-net.ipv4.tcp_syncookies = 1
-
 # TCP Enable ECN Negotiation by default
 net.ipv4.tcp_ecn = 1
 
@@ -85,9 +67,6 @@ net.ipv4.tcp_slow_start_after_idle = 0
 # Protect against tcp time-wait assassination hazards, drop RST packets for sockets in the time-wait state. Not widely supported outside of Linux, but conforms to RFC:
 net.ipv4.tcp_rfc1337 = 1
 
-# Set the maximum watches on files
-fs.inotify.max_user_watches = 524288
-
 # Set size of file handles and inode cache
 fs.file-max = 2097152