virt nfs
QEMU testing on CentOS 6.4 (Final) via the Phoronix Test Suite.


zfs wd: 

	Processor: QEMU Virtual @ 2.67GHz (4 Cores), Motherboard: Red Hat KVM, Memory: 4096MB, Disk: 7301GB

	OS: CentOS 6.4 (Final), Kernel: 2.6.32-358.0.1.el6.x86_64 (x86_64), Compiler: GCC 4.4.7 20120313, File-System: nfs, System Layer: QEMU

zfs hp: 

	Processor: QEMU Virtual @ 2.67GHz (4 Cores), Motherboard: Red Hat KVM, Memory: 4096MB, Disk: 7301GB

	OS: CentOS 6.4 (Final), Kernel: 2.6.32-358.0.1.el6.x86_64 (x86_64), Compiler: GCC 4.4.7 20120313, File-System: nfs, System Layer: QEMU

ext4 wd: 

	Processor: QEMU Virtual @ 2.67GHz (4 Cores), Motherboard: Red Hat KVM, Memory: 4096MB, Disk: 7301GB

	OS: CentOS 6.4 (Final), Kernel: 2.6.32-358.0.1.el6.x86_64 (x86_64), Compiler: GCC 4.4.7 20120313, File-System: nfs, System Layer: QEMU

ext4 wd virt2: 

	Processor: QEMU Virtual @ 2.67GHz (4 Cores), Motherboard: Red Hat KVM, Memory: 4096MB, Disk: 7301GB

	OS: CentOS 6.4 (Final), Kernel: 2.6.32-358.0.1.el6.x86_64 (x86_64), Compiler: GCC 4.4.7 20120313, File-System: nfs, System Layer: QEMU

testehd64k: 

	Processor: Intel Xeon E5-2665 0 @ 2.39GHz (16 Cores), Memory: 8192MB, Disk: 45GB

	OS: CentOS 6.4 (Final), Kernel: 2.6.32-358.11.1.el6.x86_64 (x86_64), Compiler: GCC 4.4.7 20120313, File-System: ext4, System Layer: Xen 4.1.5 Hypervisor

testehd512k: 

	Processor: Intel Xeon E5-2665 0 @ 2.39GHz (16 Cores), Memory: 8192MB, Disk: 45GB

	OS: CentOS 6.4 (Final), Kernel: 2.6.32-358.11.1.el6.x86_64 (x86_64), Compiler: GCC 4.4.7 20120313, File-System: ext4, System Layer: Xen 4.1.5 Hypervisor

Common KVM: 

	Processor: Common KVM @ 1.99GHz (2 Cores), Motherboard: Bochs, Chipset: Intel 440FX- 82441FX PMC, Memory: 1 x 1024 MB RAM, Disk: 10GB, Graphics: Cirrus Logic GD 5446, Network: Red Hat Virtio device

	OS: CentOS 6.4, Kernel: 2.6.32-358.14.2.el6.x86_64 (x86_64), Compiler: GCC 4.4.7 20120313, File-System: ext4


Gzip Compression
2GB File Compression
Seconds < Lower Is Better
zfs wd ........ 20.29 |===================
zfs hp ........ 20.42 |===================
ext4 wd ....... 20.25 |===================
ext4 wd virt2 . 18.42 |=================
testehd64k .... 20.66 |===================
testehd512k ... 22.01 |=====================
Common KVM .... 59.93 |========================================================