Scientific Linux 6.2 On Core i5
A OS comparison via the Phoronix Test Suite.


Core i5 2520M: Scientific Linux 6.2: 

	Processor: Intel Core i5-2520M @ 2.50GHz (4 Cores), Motherboard: HP 161C, Chipset: Intel 2nd Generation Core Family DRAM, Memory: 1 x 4096 MB, Disk: 160GB INTEL SSDSA2M160, Graphics: Intel Sandybridge Mobile (GT2+), Audio: Intel 6 /C200, Network: Intel 82579LM Gigabit Connection + Intel Centrino Advanced-N 6205

	OS: Scientific 6.2, Kernel: 2.6.32-220.el6.x86_64 (x86_64), Desktop: GNOME 2.28.2, Display Server: X Server 1.10.4, Display Driver: intel 2.16.0, OpenGL: 2.1 Mesa 7.11, Compiler: GCC 4.4.6, File-System: ext4, Screen Resolution: 1600x900

Core i5 2520M: CentOS 6.2: 

	Processor: Intel Core i5-2520M @ 2.50GHz (4 Cores), Motherboard: HP 161C, Chipset: Intel 2nd Generation Core Family DRAM, Memory: 1 x 4096 MB, Disk: 160GB INTEL SSDSA2M160, Graphics: Intel Sandybridge Mobile (GT2+), Audio: Intel 6 /C200, Network: Intel 82579LM Gigabit Connection + Intel Centrino Advanced-N 6205

	OS: CentOS 6.2, Kernel: 2.6.32-220.el6.x86_64 (x86_64), Desktop: GNOME 2.28.2, Display Server: X Server 1.10.4, Display Driver: intel 2.16.0, OpenGL: 2.1 Mesa 7.11, Compiler: GCC 4.4.6, File-System: ext4, Screen Resolution: 1600x900

2x Xeon x5550 evga-sr2 opensuse 13.1: 

	Processor: 2 x Intel Xeon X5550 @ 3.20GHz (16 Cores), Motherboard: EVGA Classified SR-2, Chipset: Intel 5520 I/O + ICH10R, Memory: 8 x 4096 MB 1333MHz, Disk: 476GB ServeRAID M5110, Graphics: eVGA NVIDIA GeForce GTX 680 4096MB (1110/3004MHz), Audio: Realtek ALC889, Monitor: SONY TV, Network: NetEffect NE020 10Gb Accelerated

	OS: openSUSE 13.1, Kernel: 3.11.10-17-desktop (x86_64), Desktop: KDE 4.11.5, Display Server: X Server 1.14.3.901 (1.14.4 RC 1), Display Driver: NVIDIA 340.24, Compiler: GCC 4.8.1, File-System: ext4, Screen Resolution: 1920x1848


C-Ray 1.1
Total Time
Seconds < Lower Is Better
Core i5 2520M: Scientific Linux 6.2 .. 126.57 |================================
Core i5 2520M: CentOS 6.2 ............ 126.60 |================================
2x Xeon x5550 evga-sr2 opensuse 13.1 . 15.51  |====


Smallpt 1.0
Global Illumination Renderer; 100 Samples
Seconds < Lower Is Better
Core i5 2520M: Scientific Linux 6.2 .. 234 |===================================
Core i5 2520M: CentOS 6.2 ............ 237 |===================================
2x Xeon x5550 evga-sr2 opensuse 13.1 . 66  |==========


LAME MP3 Encoding 3.99.3
WAV To MP3
Seconds < Lower Is Better
Core i5 2520M: Scientific Linux 6.2 .. 16.58 |============================
Core i5 2520M: CentOS 6.2 ............ 16.91 |============================
2x Xeon x5550 evga-sr2 opensuse 13.1 . 19.70 |=================================


FLAC Audio Encoding 1.2.1
WAV To FLAC
Seconds < Lower Is Better
Core i5 2520M: Scientific Linux 6.2 .. 7.52 |=============================
Core i5 2520M: CentOS 6.2 ............ 7.51 |=============================
2x Xeon x5550 evga-sr2 opensuse 13.1 . 8.73 |==================================


7-Zip Compression 9.20.1
Compress Speed Test
MIPS > Higher Is Better
Core i5 2520M: Scientific Linux 6.2 .. 8214  |=========
Core i5 2520M: CentOS 6.2 ............ 8182  |=========
2x Xeon x5550 evga-sr2 opensuse 13.1 . 30472 |=================================


Parallel BZIP2 Compression 1.0.5
256MB File Compression
Seconds < Lower Is Better
Core i5 2520M: Scientific Linux 6.2 .. 22.05 |=================================
Core i5 2520M: CentOS 6.2 ............ 21.82 |=================================
2x Xeon x5550 evga-sr2 opensuse 13.1 . 5.10  |========


Timed Linux Kernel Compilation 3.1
Time To Compile
Seconds < Lower Is Better
Core i5 2520M: Scientific Linux 6.2 . 202.08 |=================================
Core i5 2520M: CentOS 6.2 ........... 200.09 |=================================


John The Ripper 1.7.9
Test: Traditional DES
Real C/S > Higher Is Better
Core i5 2520M: Scientific Linux 6.2 .. 4357667 |===============================
Core i5 2520M: CentOS 6.2 ............ 4359333 |===============================
2x Xeon x5550 evga-sr2 opensuse 13.1 . 3572000 |=========================


John The Ripper 1.7.9
Test: MD5
Real C/S > Higher Is Better
Core i5 2520M: Scientific Linux 6.2 . 12267 |==================================
Core i5 2520M: CentOS 6.2 ........... 12254 |==================================


John The Ripper 1.7.9
Test: Blowfish
Real C/S > Higher Is Better
Core i5 2520M: Scientific Linux 6.2 . 751 |====================================
Core i5 2520M: CentOS 6.2 ........... 748 |====================================


OpenSSL 1.0.0e
RSA 4096-bit Performance
Signs Per Second > Higher Is Better
Core i5 2520M: Scientific Linux 6.2 . 74.98 |==================================
Core i5 2520M: CentOS 6.2 ........... 75.10 |==================================


Apache Benchmark 2.2.21
Static Web Page Serving
Requests Per Second > Higher Is Better
Core i5 2520M: Scientific Linux 6.2 . 10456.90 |==============================
Core i5 2520M: CentOS 6.2 ........... 10970.89 |===============================


PostMark 1.51
Disk Transaction Performance
TPS > Higher Is Better
Core i5 2520M: Scientific Linux 6.2 .. 3988 |=================================
Core i5 2520M: CentOS 6.2 ............ 3869 |================================
2x Xeon x5550 evga-sr2 opensuse 13.1 . 4107 |==================================


IOzone 3.347
Record Size: 4Kb - File Size: 8GB - Disk Test: Write Performance
MB/s > Higher Is Better
Core i5 2520M: Scientific Linux 6.2 .. 112.34  |===
Core i5 2520M: CentOS 6.2 ............ 112.47  |===
2x Xeon x5550 evga-sr2 opensuse 13.1 . 1238.86 |===============================


IOzone 3.347
Record Size: 4Kb - File Size: 8GB - Disk Test: Read Performance
MB/s > Higher Is Better
Core i5 2520M: Scientific Linux 6.2 .. 254.36  |=
Core i5 2520M: CentOS 6.2 ............ 254.15  |=
2x Xeon x5550 evga-sr2 opensuse 13.1 . 5762.27 |===============================


Timed MAFFT Alignment 6.864
Multiple Sequence Alignment
Seconds < Lower Is Better
Core i5 2520M: Scientific Linux 6.2 .. 25.87 |=================================
Core i5 2520M: CentOS 6.2 ............ 24.12 |==============================
2x Xeon x5550 evga-sr2 opensuse 13.1 . 26.19 |=================================


Timed HMMer Search 2.3.2
Pfam Database Search
Seconds < Lower Is Better
Core i5 2520M: Scientific Linux 6.2 .. 27.32 |=================================
Core i5 2520M: CentOS 6.2 ............ 26.53 |================================
2x Xeon x5550 evga-sr2 opensuse 13.1 . 10.39 |=============


Himeno Benchmark 3.0
Poisson Pressure Solver
MFLOPS > Higher Is Better
Core i5 2520M: Scientific Linux 6.2 .. 1273.11 |=============================
Core i5 2520M: CentOS 6.2 ............ 1346.93 |===============================
2x Xeon x5550 evga-sr2 opensuse 13.1 . 1311.87 |==============================


NAS Parallel Benchmarks 3.3
Test / Class: BT.A
Total Mop/s > Higher Is Better
Core i5 2520M: Scientific Linux 6.2 .. 5374.84  |=========
Core i5 2520M: CentOS 6.2 ............ 5390.53  |=========
2x Xeon x5550 evga-sr2 opensuse 13.1 . 17906.19 |==============================


NAS Parallel Benchmarks 3.3
Test / Class: CG.B
Total Mop/s > Higher Is Better
Core i5 2520M: Scientific Linux 6.2 .. 1226.98 |===========
Core i5 2520M: CentOS 6.2 ............ 1226.64 |===========
2x Xeon x5550 evga-sr2 opensuse 13.1 . 3324.16 |===============================


NAS Parallel Benchmarks 3.3
Test / Class: IS.C
Total Mop/s > Higher Is Better
Core i5 2520M: Scientific Linux 6.2 .. 127.52 |================================
Core i5 2520M: CentOS 6.2 ............ 119.52 |==============================
2x Xeon x5550 evga-sr2 opensuse 13.1 . 97.96  |=========================


NAS Parallel Benchmarks 3.3
Test / Class: LU.A
Total Mop/s > Higher Is Better
Core i5 2520M: Scientific Linux 6.2 .. 3497.04  |=======
Core i5 2520M: CentOS 6.2 ............ 3481.83  |=======
2x Xeon x5550 evga-sr2 opensuse 13.1 . 16057.48 |==============================


NAS Parallel Benchmarks 3.3
Test / Class: MG.B
Total Mop/s > Higher Is Better
Core i5 2520M: Scientific Linux 6.2 .. 2774.49 |============
Core i5 2520M: CentOS 6.2 ............ 2780.52 |============
2x Xeon x5550 evga-sr2 opensuse 13.1 . 6926.69 |===============================


NAS Parallel Benchmarks 3.3
Test / Class: SP.A
Total Mop/s > Higher Is Better
Core i5 2520M: Scientific Linux 6.2 .. 2458.32 |===========
Core i5 2520M: CentOS 6.2 ............ 2460.63 |===========
2x Xeon x5550 evga-sr2 opensuse 13.1 . 6934.15 |===============================


NAS Parallel Benchmarks 3.3
Test / Class: UA.A
Total Mop/s > Higher Is Better
Core i5 2520M: Scientific Linux 6.2 .. 16.66 |=========
Core i5 2520M: CentOS 6.2 ............ 16.69 |=========
2x Xeon x5550 evga-sr2 opensuse 13.1 . 58.61 |=================================