Mark Foster wrote:and you have a problem at this write/read difference !
So if he has a problem, I have to assume that I have a "REAL" problem. Both my write and read speeds are wildly fluctuating on each run. Write has been ranging from a high around 300 MB/s to a low of 7 (seven!) MB/s, and Read has ranged from 480 down to 30 MB/s. This is a Toshiba SSD that I installed in my iMac (late 2012) about a year ago due to what was thought to be a disk problem. The SSD seemed to help a lot, but lately it's been giving me the spinning beachball every blink of an eye, and, most egregiously, the spinning ball even stops spinning completely sometimes for about 45 seconds and then the computer comes back to life. When it's stopped, it's stopped. No cursor movement, no response to anything at all. But it comes back. Is this tied to my SSD showing 0 MB/s sometimes for a few seconds during a run and then finally registering something which it did on Read on that 30 MB/s run. This is going on so long, I am thinking maybe I just need to buy a new computer and be done with it. Thoughts? Other tests?