SSD Performance Real World File Copy Tests

SSD Performance

In this round of benchmarks, we start off with our real-world file copy tests. Currently, certain controllers benefit from compressed files, while others don't. Certain storage units hate small files, others work well with them. So it only makes sense to do some manual tests on that.

File Copy

The most basic and simple test anyone can perform. We drop a 100 GB compressed file onto the SSD. That write number will fluctuate a bit here and there during the writing process. Let's have a peek:

You can see as long as the buffer(s) can keep up, ~2.0 GB/sec sustained writes. After roughly 20~30 GB a TLC write hole kicks in, dropping to a still nice ~1 GB/sec. 

Copying the 100 GB file towards a similar in technology an MP600 is averaging out 1.4 GB/sec. So yeah, that's nothing to be ashamed about really, however that MP600 is experiencing the very same TLC write hole albeit manages it better.