NVMe SSD with low performance

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gm-madi

gm-madi

Respectable
Nov 26, 2017
277
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1,815
- MSI b350 gaming plus
- Ryzen 1600 3.9 @ 1.3250v
- 8gb of RAM 3200 OC
- msi 1050ti gaming plus
- M.2 SSD NVMe PCie 3.0X 4 screen: https://imgur.com/nKO5uj6
got my ryzen build recently and made a whole lot of tests, but seems my SSD is not working properly while driver is supposed to be installed.
tests with CrystalDisckmark shows good results but when i copy 30gb on the same SSD the copy runs very slow compaired to tests.

https://imgur.com/a/vLhUN
 
Solution
Eximo
A big difference between a program running in memory and instructing the drive to write and read vs reading from the drive and writing to the same drive. That will quickly saturate the cache and/or any SLC simulation the drive might be using.

Not to mention that full SSDs are always slower than empty ones. Just the way MLC and TLC work. Easy to write one bit per cell. When you want it to write 2 or 3 bits per cell it has to slow down and do that. Or do it after the fact (TRIM) Once the drive is 1/2 or 1/3 full it will be slower until it has a chance to free up empty cells (TRIM again). After a certain point, there just won't be room, and it will have to do it the slow way.
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Eximo

Eximo

Titan
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May 27, 2010
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A big difference between a program running in memory and instructing the drive to write and read vs reading from the drive and writing to the same drive. That will quickly saturate the cache and/or any SLC simulation the drive might be using.

Not to mention that full SSDs are always slower than empty ones. Just the way MLC and TLC work. Easy to write one bit per cell. When you want it to write 2 or 3 bits per cell it has to slow down and do that. Or do it after the fact (TRIM) Once the drive is 1/2 or 1/3 full it will be slower until it has a chance to free up empty cells (TRIM again). After a certain point, there just won't be room, and it will have to do it the slow way.
 
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