io-zone
2 x Intel Core i7 9xx (Nehalem Class Core i7) testing with a QEMU Standard PC (i440FX + PIIX 1996) and Cirrus Logic GD 5446 on Ubuntu 14.04 via the Phoronix Test Suite.


default: 

	Processor: 2 x Intel Core i7 9xx (Nehalem Class Core i7) @ 2.27GHz (2 Cores), Motherboard: QEMU Standard PC (i440FX + PIIX 1996), Chipset: Intel 440FX- 82441FX PMC, Memory: 1 x 2048 MB RAM, Disk: 18GB, Graphics: Cirrus Logic GD 5446, Network: Red Hat Virtio device

	OS: Ubuntu 14.04, Kernel: 3.13.0-24-generic (x86_64), Compiler: GCC 4.8, File-System: ext4, Screen Resolution: 1024x768

none-native: 

	Processor: 2 x Intel Core i7 9xx (Nehalem Class Core i7) @ 2.27GHz (2 Cores), Motherboard: QEMU Standard PC (i440FX + PIIX 1996), Chipset: Intel 440FX- 82441FX PMC, Memory: 1 x 2048 MB RAM, Disk: 18GB, Graphics: Cirrus Logic GD 5446, Network: Red Hat Virtio device

	OS: Ubuntu 14.04, Kernel: 3.13.0-24-generic (x86_64), Compiler: GCC 4.8, File-System: ext4, Screen Resolution: 1024x768

default,writecache: 

	Processor: 2 x Intel Core i7 9xx (Nehalem Class Core i7) @ 2.27GHz (2 Cores), Motherboard: QEMU Standard PC (i440FX + PIIX 1996), Chipset: Intel 440FX- 82441FX PMC, Memory: 1 x 2048 MB RAM, Disk: 18GB, Graphics: Cirrus Logic GD 5446, Network: Red Hat Virtio device

	OS: Ubuntu 14.04, Kernel: 3.13.0-24-generic (x86_64), Compiler: GCC 4.8, File-System: ext4, Screen Resolution: 1024x768

none-native,writecache: 

	Processor: 2 x Intel Core i7 9xx (Nehalem Class Core i7) @ 2.27GHz (2 Cores), Motherboard: QEMU Standard PC (i440FX + PIIX 1996), Chipset: Intel 440FX- 82441FX PMC, Memory: 1 x 2048 MB RAM, Disk: 18GB, Graphics: Cirrus Logic GD 5446, Network: Red Hat Virtio device

	OS: Ubuntu 14.04, Kernel: 3.13.0-24-generic (x86_64), Compiler: GCC 4.8, File-System: ext4, Screen Resolution: 1024x768

none-native,wc,noop: 

	Processor: 2 x Intel Core i7 9xx (Nehalem Class Core i7) @ 2.27GHz (2 Cores), Motherboard: QEMU Standard PC (i440FX + PIIX 1996), Chipset: Intel 440FX- 82441FX PMC, Memory: 1 x 2048 MB RAM, Disk: 18GB, Graphics: Cirrus Logic GD 5446, Network: Red Hat Virtio device

	OS: Ubuntu 14.04, Kernel: 3.13.0-24-generic (x86_64), Compiler: GCC 4.8, File-System: ext4, Screen Resolution: 1024x768


IOzone 3.405
Record Size: 4Kb - File Size: 8GB - Disk Test: Write Performance
MB/s > Higher Is Better
default ................ 198.21 |========================================
none-native ............ 227.69 |==============================================
default,writecache ..... 186.24 |======================================
none-native,writecache . 227.40 |==============================================
none-native,wc,noop .... 227.58 |==============================================