Samsung 850 SSD RAID Mirror Linux
Single Samsung SM951 NVME drive comparsion on AMD FX-8320@4.6GHz against eRacks.com with dual Samsung 850 SSD in RAID on Intel i5


Samsung 850 SSD RAID 1: 

	Processor: Intel Core i5-4440 @ 3.10GHz (4 Cores), Motherboard: ASUS H81M-A, Chipset: Intel 4th Gen Core DRAM, Memory: 16384MB, Disk: 2 x 500GB Samsung SSD 850, Graphics: Zotac NVIDIA Device 0fc8 2048MB (324/324MHz), Audio: Realtek ALC887-VD, Monitor: ASUS VW193D, Network: Realtek RTL8111/8168/8411

	OS: Ubuntu 14.04, Kernel: 3.13.0-65-generic (x86_64), Compiler: GCC 4.8.4, File-System: ext4, Screen Resolution: 1440x900

Samsung SM951 NVME 256GB: 

	Processor: AMD FX-8320 Eight-Core @ 4.60GHz (8 Cores), Motherboard: Gigabyte 990XA-UD3, Chipset: AMD RD890 bridge, Memory: 16384MB, Disk: 128GB Samsung SSD 840 + 4001GB Seagate ST4000DM000-1F21, Graphics: MSI NVIDIA GeForce GTX 970 4096MB (899/3505MHz), Audio: Realtek ALC889, Network: Realtek RTL8111/8168/8411

	OS: Arch rolling, Kernel: 4.2.1-1-ARCH (x86_64), Display Driver: NVIDIA 355.11, OpenGL: 4.4.0, Compiler: GCC 5.2.0 + Clang 3.7.0 + LLVM 3.7.0, File-System: ext4, Screen Resolution: 5120x1200


SQLite 3.8.10.2
Timed SQLite Insertions
Seconds < Lower Is Better
Samsung 850 SSD RAID 1 ... 30.98  |===========
Samsung SM951 NVME 256GB . 126.80 |============================================


Flexible IO Tester 2.1.13
Type: Random Read - IO Engine: POSIX AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Result: MB/s
MB/s > Higher Is Better
Samsung 850 SSD RAID 1 ... 42.92 |=====================================
Samsung SM951 NVME 256GB . 52.19 |=============================================


Flexible IO Tester 2.1.13
Type: Random Write - IO Engine: POSIX AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Result: MB/s
MB/s > Higher Is Better
Samsung 850 SSD RAID 1 ... 156.50 |=======================================
Samsung SM951 NVME 256GB . 178.08 |============================================


Flexible IO Tester 2.1.13
Type: Sequential Read - IO Engine: POSIX AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Result: MB/s
MB/s > Higher Is Better
Samsung 850 SSD RAID 1 ... 196.88 |==========================================
Samsung SM951 NVME 256GB . 204.87 |============================================


Flexible IO Tester 2.1.13
Type: Sequential Write - IO Engine: POSIX AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Result: MB/s
MB/s > Higher Is Better
Samsung 850 SSD RAID 1 ... 156.77 |=======================================
Samsung SM951 NVME 256GB . 178.52 |============================================


Dbench 4.0
Client Count: 6
MB/s > Higher Is Better
Samsung 850 SSD RAID 1 ... 430.27 |============================================
Samsung SM951 NVME 256GB . 121.62 |============


Compile Bench 0.6
Test: Initial Create
MB/s > Higher Is Better
Samsung 850 SSD RAID 1 ... 363.61 |============================================
Samsung SM951 NVME 256GB . 274.45 |=================================


PostMark 1.51
Disk Transaction Performance
TPS > Higher Is Better
Samsung 850 SSD RAID 1 ... 5639 |==============================================
Samsung SM951 NVME 256GB . 3538 |=============================


Timed Linux Kernel Compilation 3.18-rc6
Time To Compile
Seconds < Lower Is Better
Samsung 850 SSD RAID 1 ... 138.14 |============================================
Samsung SM951 NVME 256GB . 105.90 |==================================


PostgreSQL pgbench 9.4.3
Scaling: On-Disk - Test: Normal Load - Mode: Read Write
TPS > Higher Is Better
Samsung 850 SSD RAID 1 ... 929.67  |==================
Samsung SM951 NVME 256GB . 2196.81 |===========================================