From the mouse-click on "Shutdown" button in the logout-menu until the PC is shut down, it takes 62 seconds.
That is way too slow.
I remember it was about 2 or 3 seconds, but I cannot remember when it changed to 62 seconds. Maybe some installation or upgrade of kernel ?
The boot takes 26 seconds, which is very fast for my PC.
Here is my inxi -Fz info :
System: Host: franz-Inspiron-560 Kernel: 4.4.0-43-generic x86_64 (64 bit)
Desktop: LXDE (Openbox 3.6.1) Distro: Ubuntu 16.04 xenial
Machine: System: Dell product: Inspiron 560 v: 00
Mobo: Dell model: 0K83V0 v: A00 Bios: Dell v: A00 date: 10/06/2009
CPU: Dual core Pentium E5400 (-MCP-) cache: 2048 KB
clock speeds: max: 2700 MHz 1: 2003 MHz 2: 1603 MHz
Graphics: Card: Advanced Micro Devices [AMD/ATI] Redwood XT [Radeon HD 5670/5690/5730]
Display Server: X.Org 1.18.3 drivers: ati,radeon (unloaded: fbdev,vesa)
Resolution: 1280x1024@60.02hz
GLX Renderer: Gallium 0.4 on AMD REDWOOD (DRM 2.43.0, LLVM 3.8.0)
GLX Version: 3.0 Mesa 11.2.0
Audio: Card-1 Advanced Micro Devices [AMD/ATI] Redwood HDMI Audio [Radeon HD 5000 Series]
driver: snd_hda_intel
Card-2 Intel 82801JI (ICH10 Family) HD Audio Controller
driver: snd_hda_intel
Card-3 Microsoft driver: USB Audio
Sound: Advanced Linux Sound Architecture v: k4.4.0-43-generic
Network: Card: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
driver: r8169
IF: enp3s0 state: up speed: 1000 Mbps duplex: full mac: <filter>
Drives: HDD Total Size: 320.1GB (5.8% used)
ID-1: /dev/sda model: WDC_WD3200AAKS size: 320.1GB
Partition: ID-1: / size: 15G used: 4.7G (34%) fs: ext4 dev: /dev/sda12
ID-2: /home size: 31G used: 2.6G (9%) fs: ext4 dev: /dev/sda13
ID-3: swap-1 size: 11.43GB used: 0.00GB (0%) fs: swap dev: /dev/sda7
RAID: No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors: System Temperatures: cpu: 41.0C mobo: N/A gpu: 39.0
Fan Speeds (in rpm): cpu: N/A
Info: Processes: 183 Uptime: 17 min Memory: 821.5/7983.0MB
Client: Shell (bash) inxi: 2.2.35