jg-dbench
EXT$ on VM (KVM, qcow2) on BTRFS on LVM on spinning disk with SSD cache


local-ssd: 

	Processor: Intel Core i7-2600K @ 3.80GHz (8 Cores), Motherboard: ASUS P8Z68-V LX, Chipset: Intel 2nd Generation Core Family DRAM, Memory: 20480MB, Disk: 2 x 1500GB Seagate ST31500341AS + 60GB Patriot Pyro, Graphics: ASUS NVIDIA GeForce GTX 560 1024MB (810/2004MHz), Audio: Realtek ALC887-VD, Network: Realtek RTL8111/8168/8411

	OS: Ubuntu 15.10, Kernel: 4.2.0-34-generic (x86_64), Desktop: Xfce 4.12, Display Server: X Server 1.17.2, Display Driver: NVIDIA 352.63, OpenGL: 4.4.0, Compiler: GCC 5.2.1 20151010, File-System: ext4, Screen Resolution: 1920x1080

vm-btrfs-ssd-cache: 

	Processor: 4 x Westmere E56xx/L56xx/X56xx (Nehalem-C) @ 3.41GHz (4 Cores), Motherboard: QEMU Standard PC (i440FX + PIIX 1996), Chipset: Intel 440FX- 82441FX PMC, Memory: 4096MB, Disk: 193GB, Graphics: Red Hat QXL paravirtual graphic card, Audio: QEMU ID 22, Network: Red Hat Virtio device

	OS: Ubuntu 15.10, Kernel: 4.2.0-34-generic (x86_64), Display Driver: modesetting 1.17.2, Compiler: GCC 5.2.1 20151010, File-System: ext4, Screen Resolution: 1024x768, System Layer: KVM


Dbench 4.0
Client Count: 1
MB/s > Higher Is Better
local-ssd .......... 292.21 |==================================================
vm-btrfs-ssd-cache . 6.45   |=


Dbench 4.0
Client Count: 12
MB/s > Higher Is Better
local-ssd .......... 1206.19 |=================================================
vm-btrfs-ssd-cache . 40.63   |==