pm
Intel Core i5-3450 testing with a MSI Z77A-G43 (MS-7758) v1.0 and NVIDIA GeForce GTS 450 1024MB on Ubuntu 13.04 via the Phoronix Test Suite.


ubuntu-lvm: 

	Processor: Intel Core i5-3450 @ 3.10GHz (4 Cores), Motherboard: MSI Z77A-G43 (MS-7758) v1.0, Chipset: Intel Xeon E3-1200 v2/3rd, Memory: 8192MB, Disk: 2000GB Seagate ST2000DM001-9YN1, Graphics: NVIDIA GeForce GTS 450 1024MB (783/1804MHz), Audio: Realtek ALC892, Network: Realtek RTL8111/8168

	OS: Ubuntu 13.04, Kernel: 3.8.0-19-generic (x86_64), Desktop: Unity 7.0.0, Display Server: X Server 1.13.3, Display Driver: NVIDIA 313.30, OpenGL: 4.3.0 NVIDIA 313.30, Compiler: GCC 4.7, File-System: ext4, Screen Resolution: 1920x1080

kubuntu-nolvm: 

	Processor: Intel Core i5-3450 @ 3.10GHz (4 Cores), Motherboard: MSI Z77A-G43 (MS-7758) v1.0, Chipset: Intel Xeon E3-1200 v2/3rd, Memory: 8192MB, Disk: 2000GB Seagate ST2000DM001-9YN1, Graphics: NVIDIA GeForce GTS 450 1024MB (783/1804MHz), Audio: Realtek ALC892, Network: Realtek RTL8111/8168

	OS: Ubuntu 13.04, Kernel: 3.8.0-19-generic (x86_64), Desktop: KDE 4.10.2, Display Server: X Server 1.13.3, Display Driver: NVIDIA 310.44, OpenGL: 4.3.0 NVIDIA 310.44, Compiler: GCC 4.7, File-System: ext4, Screen Resolution: 1920x1080


PostMark 1.51
Disk Transaction Performance
TPS > Higher Is Better
ubuntu-lvm .... 5436 |=========================================================
kubuntu-nolvm . 5396 |=========================================================