jg512-4-02
EXT4 partition on VM (KVM, qcow2) on BTRFS on LVM on spinning disk with LVM SSD cache


local-ext4-lvm-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), Desktop: KDE Frameworks 5, Display Driver: modesetting 1.17.2, Compiler: GCC 5.2.1 20151010, File-System: ext4, Screen Resolution: 1024x768, System Layer: KVM


IOzone 3.405
Record Size: 4Kb - File Size: 512MB - Disk Test: Read Performance
MB/s > Higher Is Better
local-ext4-lvm-ssd . 5114.37 |=================================================
vm-btrfs-ssd-cache . 1575.30 |===============


IOzone 3.405
Record Size: 4Kb - File Size: 512MB - Disk Test: Write Performance
MB/s > Higher Is Better
local-ext4-lvm-ssd . 219.22 |==================================================
vm-btrfs-ssd-cache . 168.69 |======================================