inital

sysctl.yaml

@@ -0,0 +1,41 @@
+---
+- name: Sysctl Tuning fuer Emby
+  hosts: all
+  become: true
+
+  tasks:
+
+    - name: BBR Kernel Modul laden
+      ansible.builtin.modprobe:
+        name: tcp_bbr
+        state: present
+
+    - name: BBR Modul beim Boot laden
+      ansible.builtin.copy:
+        content: "tcp_bbr\n"
+        dest: /etc/modules-load.d/bbr.conf
+        mode: "0644"
+
+    - name: Sysctl Parameter setzen
+      ansible.posix.sysctl:
+        name: "{{ item.key }}"
+        value: "{{ item.value }}"
+        sysctl_file: /etc/sysctl.d/99-net-tuning.conf
+        reload: true
+        state: present
+      loop:
+        - { key: net.core.rmem_default,              value: "262144" }
+        - { key: net.core.wmem_default,              value: "262144" }
+        - { key: net.core.rmem_max,                  value: "67108864" }
+        - { key: net.core.wmem_max,                  value: "67108864" }
+        - { key: net.ipv4.tcp_rmem,                  value: "4096 87380 67108864" }
+        - { key: net.ipv4.tcp_wmem,                  value: "4096 65536 67108864" }
+        - { key: net.ipv4.tcp_window_scaling,        value: "1" }
+        - { key: net.ipv4.tcp_congestion_control,    value: "bbr" }
+        - { key: net.ipv4.tcp_slow_start_after_idle, value: "0" }
+        - { key: net.ipv4.tcp_fastopen,              value: "3" }
+        - { key: net.core.netdev_max_backlog,        value: "16384" }
+        # RAM ist reichlich vorhanden, Transcoding auf tmpfs
+        - { key: vm.swappiness,                      value: "1" }
+        - { key: vm.dirty_ratio,                     value: "15" }
+        - { key: vm.dirty_background_ratio,          value: "5" }