Slow transfer speeds for SSD?

[benga]

I have a Samsung 850 Evo 500 GB and I feel like my transfer speeds are slow like HDD slow. 
This is zip file I was unloading onto the same SSD. 

30 MB/s average I feel like that's really slow. What happened to all the talk about 500 read/write etc or did i misunderstand?

 

[iRileyx]

If its having to transfer alot of small files, which at 10.4gb for 10500 files it seems like they are, it can slow down quite a lot compared to larger files.

[benga]

1 minute ago, RKRiley said:

If its having to transfer alot of small files, which at 10.4gb for 10500 files it seems like they are, it can slow down quite a lot compared to larger files.

ah i see, I just tested it on a large single file and it the right speeds.

[SCHISCHKA]

I wonder if it would be faster with the zip file loaded onto a ram disk

[ARikozuM]

13 minutes ago, benga said:

ah i see, I just tested it on a large single file and it the right speeds.

Unfortunately, queue depth for SATA is only 32. This means that out of 10000 objects only 32 can be read or written on one schedule. The schedule doesn't complete all 32 before refilling, but the small files really limit the potential of the SSD.

 

If you deal with these large object sets, I would suggest getting NVMe like the 950 PRO or similar since the queue depth is nearly 65000 queue each with 65000 objects.

[ARikozuM]

2 minutes ago, SCHISCHKA said:

I wonder if it would be faster with the zip file loaded onto a ram disk

Probably would, but you would need to write to the RAM and then saving to the SSD would be the same outcome.

[SCHISCHKA]

1 minute ago, ARikozuM said:

Probably would, but you would need to write to the RAM and then saving to the SSD would be the same outcome.

I guess it would be seperating the read and write operations of the de-compression. Iv only done it at uni when i had to debug a program that was processing data from wikipedia. with all the repetitous reads during debugging it was a lot faster having a copy in ram disk