I guess I'm trying to pinpoint what chokes the transfer speeds in general:
Situation is - Brand new Dell E7240 with USB3.0 ports. Copying from a USB3.0 capable card reader (Lexar).
Lots of individual files. Crystalmark says my IO on the [SSD] drive for 1GB files is ~350MB/s at the SLOWEST test (450MB/s at the highest).
Copying actual files, maxes out at ~48MB/s. the files are all between 8MB and 50MB a file, and there's 26GB in total on the SD card.
I've tried using unstoppable copier and changing the copy policy on the reader to "faster" and both only increase copy speeds (each by themselves) to around 54MB/s tops.
My question is this: What factors are the greatest in preventing the copy speeds from reaching the theoretical maximums? - Multiple files? - USB Card quality? - Copy method? (i.e. instead of files, just an image of the SD card would be faster as it's one continuous stream of data).
Any other thoughts / ideas?