zfs
Xen 4.1.3 Hypervisor testing on Debian 7.0 via the Phoronix Test Suite.


2GB larc: 

	Processor: AMD Opteron 6348 @ 2.80GHz (4 Cores), Memory: 4096MB, Disk: 4001GB HGST HDS724040AL

	OS: Debian 7.0, Kernel: 3.9.4-2013061402 (x86_64), Compiler: GCC 4.7, File-System: zfs, System Layer: Xen 4.1.3 Hypervisor


Threaded I/O Tester 0.3.3
Test: Read - Size Per Thread: 64MB - Thread Count: 4
MB/s > Higher Is Better
2GB larc . 821.96 |============================================================


Threaded I/O Tester 0.3.3
Test: Write - Size Per Thread: 64MB - Thread Count: 4
MB/s > Higher Is Better
2GB larc . 157.46 |============================================================


Threaded I/O Tester 0.3.3
Test: Random Read - Size Per Thread: 64MB - Thread Count: 4
MB/s > Higher Is Better
2GB larc . 716.73 |============================================================


Threaded I/O Tester 0.3.3
Test: Random Write - Size Per Thread: 64MB - Thread Count: 4
MB/s > Higher Is Better
2GB larc . 194.36 |============================================================


Apache Benchmark 2.4.3
Static Web Page Serving
Requests Per Second > Higher Is Better
2GB larc . 12596.00 |==========================================================


PostgreSQL pgbench 8.4.11
TPC-B Transactions Per Second
TPS > Higher Is Better
2GB larc . 1190.86 |===========================================================


Flexible IO Tester 1.57
Test: Intel IOMeter File Server Access Pattern
Seconds (Run Time) < Lower Is Better
2GB larc . 314.54 |============================================================


SQLite 3.7.3
Test Target: Default Test Directory
Seconds < Lower Is Better
2GB larc . 36.28 |=============================================================