Xen HVM domU vs. KVM
Xen benchmarking from Ubuntu 11.10 on host and guest against KVM-QEMU on Ubuntu 11.10.


Xen HVM DomU: 

	Processor: Intel Core i7-2630QM @ 2.00GHz (8 Cores), Motherboard: Xen HVM domU v4.1.1, Chipset: Intel 440FX - 82441FX PMC, Memory: 6144MB, Disk: 32GB, Graphics: Cirrus Logic GD 5446, Audio: Ensoniq ES1370

	OS: Ubuntu 11.10, Kernel: 3.0.0-12-generic (x86_64), Desktop: Unity 4.22.0, Display Server: X Server 1.10.4, Display Driver: cirrus 1.3.2, Compiler: GCC 4.6.1, File-System: ext4, Screen Resolution: 1024x768, System Layer: Xen HVM domU 4.1.1

KVM-QEMU: 

	Processor: QEMU Virtual 0.14.1 @ 2.00GHz (8 Cores), Motherboard: Bochs, Chipset: Red Hat Virtio, Memory: 6144MB, Disk: 32GB, Graphics: Cirrus Logic GD 5446, Audio: Generic 1af4 ID 20, Network: Red Hat Virtio device

	OS: Ubuntu 11.10, Kernel: 3.0.0-12-generic (x86_64), Desktop: Unity 4.22.0, Display Server: X Server 1.10.4, Display Driver: cirrus 1.3.2, OpenGL: 2.1 Mesa 7.11, Compiler: GCC 4.6.1, File-System: ext4, Screen Resolution: 1024x768, System Layer: QEMU


C-Ray 1.1
Total Time
Seconds < Lower Is Better
Xen HVM DomU . 107.65 |========================================================
KVM-QEMU ..... 80.52  |==========================================


POV-Ray 3.6.1
Total Time
Seconds < Lower Is Better
Xen HVM DomU . 1328 |==========================================================
KVM-QEMU ..... 905  |========================================


Smallpt 1.0
Global Illumination Renderer; 100 Samples
Seconds < Lower Is Better
Xen HVM DomU . 188 |===========================================================
KVM-QEMU ..... 146 |==============================================


John The Ripper 1.7.8
Test: Traditional DES
Real C/S > Higher Is Better
Xen HVM DomU . 2397333 |=======================================
KVM-QEMU ..... 3383000 |=======================================================


John The Ripper 1.7.8
Test: MD5
Real C/S > Higher Is Better
Xen HVM DomU . 7628  |=======================================
KVM-QEMU ..... 11063 |=========================================================


John The Ripper 1.7.8
Test: Blowfish
Real C/S > Higher Is Better
Xen HVM DomU . 491 |=========================================
KVM-QEMU ..... 710 |===========================================================


OpenSSL 1.0.0a
RSA 4096-bit Performance
Signs Per Second > Higher Is Better
Xen HVM DomU . 46.73 |========================================
KVM-QEMU ..... 67.15 |=========================================================


7-Zip Compression 9.13
Compress Speed Test
MIPS > Higher Is Better
Xen HVM DomU . 9771  |===============================================
KVM-QEMU ..... 11757 |=========================================================


NAS Parallel Benchmarks 3.3
Test / Class: BT.A
Total Mop/s > Higher Is Better
Xen HVM DomU . 7034.05 |==========================================
KVM-QEMU ..... 9134.72 |=======================================================


NAS Parallel Benchmarks 3.3
Test / Class: CG.B
Total Mop/s > Higher Is Better
Xen HVM DomU . 1671.94 |===========================================
KVM-QEMU ..... 2130.41 |=======================================================


NAS Parallel Benchmarks 3.3
Test / Class: EP.B
Total Mop/s > Higher Is Better
Xen HVM DomU . 116.59 |==========================================
KVM-QEMU ..... 154.36 |========================================================


NAS Parallel Benchmarks 3.3
Test / Class: FT.B
Total Mop/s > Higher Is Better
Xen HVM DomU . 3777.30 |============================================
KVM-QEMU ..... 4716.12 |=======================================================


NAS Parallel Benchmarks 3.3
Test / Class: IS.C
Total Mop/s > Higher Is Better
Xen HVM DomU . 97.68 |=========================================================
KVM-QEMU ..... 87.87 |===================================================


NAS Parallel Benchmarks 3.3
Test / Class: LU.A
Total Mop/s > Higher Is Better
Xen HVM DomU . 6254.72 |========================================
KVM-QEMU ..... 8525.19 |=======================================================


NAS Parallel Benchmarks 3.3
Test / Class: MG.B
Total Mop/s > Higher Is Better
Xen HVM DomU . 3843.84 |==========================================
KVM-QEMU ..... 4980.32 |=======================================================


NAS Parallel Benchmarks 3.3
Test / Class: SP.A
Total Mop/s > Higher Is Better
Xen HVM DomU . 3405.65 |=============================================
KVM-QEMU ..... 4190.15 |=======================================================


NAS Parallel Benchmarks 3.3
Test / Class: UA.A
Total Mop/s > Higher Is Better
Xen HVM DomU . 21.22 |==========================================
KVM-QEMU ..... 28.63 |=========================================================


Timed MAFFT Alignment 6.706
Multiple Sequence Alignment
Seconds < Lower Is Better
Xen HVM DomU . 36.43 |=========================================================
KVM-QEMU ..... 25.59 |========================================


CLOMP 3.3
Static OMP Speedup
Speedup > Higher Is Better
Xen HVM DomU . 4.24 |====================================================
KVM-QEMU ..... 4.70 |==========================================================


Apache Benchmark 2.2.17
Static Web Page Serving
Requests Per Second > Higher Is Better
Xen HVM DomU . 11231.48 |======================================================
KVM-QEMU ..... 11247.06 |======================================================


PostMark 1.51
Disk Transaction Performance
TPS > Higher Is Better
Xen HVM DomU . 2409 |=========================================
KVM-QEMU ..... 3393 |==========================================================


SQLite 3.7.3
Test Target: Default Test Directory
Seconds < Lower Is Better
Xen HVM DomU . 608.92 |========================================================
KVM-QEMU ..... 416.75 |======================================