Samsung 840 EVO 500GB and 1TB Full Review - TurboWrite TLC
PCPer File Copy Test
Our custom PCPer-FC test does some fairly simple file creation and copy routines in order to test the storage system for speed. The script creates a set of files of varying sizes, times the creation process, then copies the same files to another partition on the same hard drive and times the copy process as well. There are four file patterns that we used to try and find any strong or weak points in the hardware: 10 files @ 1000 MB each, 100 files @ 100 MB each, 500 files @ 10 MB each and 1000 files at 1 MB each.
Most of these enterprise units are on the slower side when it comes to file creation, a heavily sequential operation, mainly due to firmware more optimized for consistency in random IO.
This test does large bulk file manipulation, which forces the EVOs to write at their TLC speed. That said, they perform very well and are able to perform very well overall. The (de) optimization that was causing slower creation on the older 840 and 840 Pro appears to have been corrected in the new controller.