splice
Xen HVM domU 4.2.amazon testing on NixOS 18.03.git.c038353 via the Phoronix Test Suite.


splice: 

	Processor: 2 x Intel Xeon E5-2686 v4 @ 2.30GHz (2 Cores / 4 Threads), Motherboard: Xen HVM domU, Memory: 16384MB, Disk: 98GB, Graphics: cirrusdrmfb

	OS: NixOS 18.03.git.c038353, Kernel: 4.14.13 (x86_64), Compiler: GCC 6.4.0, File-System: fuseblk, Screen Resolution: 1024x768, System Layer: Xen HVM domU 4.2.amazon

no-splice: 

	Processor: 2 x Intel Xeon E5-2686 v4 @ 2.30GHz (2 Cores / 4 Threads), Motherboard: Xen HVM domU, Memory: 16384MB, Disk: 98GB, Graphics: cirrusdrmfb

	OS: NixOS 18.03.git.c038353, Kernel: 4.14.13 (x86_64), Compiler: GCC 6.4.0, File-System: fuseblk, Screen Resolution: 1024x768, System Layer: Xen HVM domU 4.2.amazon


IOzone 3.465
Record Size: 4Kb - File Size: 512MB - Disk Test: Read Performance
MB/s > Higher Is Better
splice .... 4150.61 |==========================================================
no-splice . 3948.29 |=======================================================