before
Running pts/compress-pbzip2-1.4.0 via the Phoronix Test Suite.


using centos kernel: 

	Processor: Intel Core 2 Duo E8400 @ 2.99GHz (2 Cores), Motherboard: Dell 0M858N, Memory: 2 x 2048 MB DDR2-800MHz, Disk: 250GB Seagate ST3250318AS, Graphics: 512MB (400/499MHz), Audio: Analog Devices AD1984A

	OS: CentOS Linux 7, Kernel: 3.10.0-123.20.1.el7.x86_64 (x86_64), Compiler: GCC 4.8.2 20140120, File-System: xfs, Screen Resolution: 1024x768

Intel Core 2 Duo E8400: 

	Processor: Intel Core 2 Duo E8400 @ 2.99GHz (2 Cores), Motherboard: Dell 0M858N, Memory: 2 x 2048 MB DDR2-800MHz, Disk: 250GB Seagate ST3250318AS, Graphics: 512MB (400/499MHz), Audio: Analog Devices AD1984A, Monitor: DELL 1505FP

	OS: CentOS Linux 7, Kernel: 3.10.0-123.20.1.el7.x86_64 (x86_64), Compiler: GCC 4.8.2 20140120, File-System: xfs, Screen Resolution: 1024x768

custom kernel: 

	Processor: Intel Core 2 Duo E8400 @ 2.99GHz (2 Cores), Motherboard: Dell 0M858N, Chipset: Intel 4 DRAM + ICH10D, Memory: 2 x 2048 MB DDR2-800MHz, Disk: 250GB Seagate ST3250318AS, Graphics: ASUS NVIDIA GeForce 9400 GT 512MB, Audio: Intel 82801JD/DO, Monitor: DELL 1505FP, Network: Intel 82567LM-3 Gigabit Connection

	OS: CentOS 6.5, Kernel: 4.0.0-pf3+ (x86_64), Display Server: X Server 1.13.0, Display Driver: nouveau 1.0.1, OpenGL: 2.1 Mesa 9.2.0-devel, Compiler: GCC 4.4.7 20120313, File-System: ext4, Screen Resolution: 1366x768

custom kernel v2: 

	Processor: Intel Core 2 Duo E8400 @ 2.99GHz (2 Cores), Motherboard: Dell 0M858N, Chipset: Intel 4 DRAM + ICH10D, Memory: 2 x 2048 MB DDR2-800MHz, Disk: 250GB Seagate ST3250318AS, Graphics: ASUS NVIDIA GeForce 9400 GT 512MB, Audio: Intel 82801JD/DO, Monitor: DELL 1505FP, Network: Intel 82567LM-3 Gigabit Connection

	OS: CentOS 6.5, Kernel: 4.0.0-pf3+ (x86_64), Display Server: X Server 1.13.0, Display Driver: nouveau 1.0.1, OpenGL: 2.1 Mesa 9.2.0-devel, Compiler: GCC 4.4.7 20120313, File-System: ext4, Screen Resolution: 1366x768


Parallel BZIP2 Compression 1.1.6
256MB File Compression
Seconds < Lower Is Better
using centos kernel .... 22.96 |===========================================
Intel Core 2 Duo E8400 . 22.77 |===========================================
custom kernel .......... 24.36 |==============================================
custom kernel v2 ....... 24.89 |===============================================