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agarora
Paper Tape
Posts: 1
Registered: ‎07-09-2018
Location: US
Views: 498
Message 1 of 2

T570 PM961 Samsung NVMe SSD slow

Hello all

 

I have been using this latop for about a month and it felt slower than my alternate Dell XPS with very similar specs.  It has a Samsung 850 Pro SSD, which is technically slower than PM961 on the lenovo.  However, all my programs seem slower and jittery - the same programs runs butter smooth on my Dell.  

 

I have installed the latest NVMe drivers from Samsung, am not using thunderbolt port and also using Intel Rapid storage technology.  What may be causing this slowness?

 

The programs I mainly use are for development: Eclipse, IntelliJ, database daemons etc.

 

Below are my crystal disk stats:

 

-----------------------------------------------------------------------
CrystalDiskMark 6.0.1 x64 (C) 2007-2018 hiyohiyo
Crystal Dew World : https://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

Sequential Read (Q= 32,T= 1) : 1730.315 MB/s
Sequential Write (Q= 32,T= 1) : 1418.643 MB/s
Random Read 4KiB (Q= 8,T= 8) : 747.831 MB/s [ 182575.9 IOPS]
Random Write 4KiB (Q= 8,T= 8) : 459.212 MB/s [ 112112.3 IOPS]
Random Read 4KiB (Q= 32,T= 1) : 303.422 MB/s [ 74077.6 IOPS]
Random Write 4KiB (Q= 32,T= 1) : 229.395 MB/s [ 56004.6 IOPS]
Random Read 4KiB (Q= 1,T= 1) : 42.850 MB/s [ 10461.4 IOPS]
Random Write 4KiB (Q= 1,T= 1) : 131.647 MB/s [ 32140.4 IOPS]

Test : 1024 MiB [C: 48.4% (114.7/237.2 GiB)] (x5) [Interval=5 sec]
Date : 2018/07/09 18:48:36
OS : Windows 10 Professional [10.0 Build 17134] (x64)

pjc123
802.11n
Posts: 191
Registered: ‎07-31-2013
Location: US
Views: 428
Message 2 of 2

Re: T570 PM961 Samsung NVMe SSD slow

Speeds don't look bad to me.  You do realized that there are only two pice lanes in the T570 instead of four?  You will only see about half the speed of what the NVME manufacturer advertises.

 

I run a Samsung 960 EVO in my T470 without any speed, slowing or jittery issues in Windows or Linux.   In fact it is so fast, that the cpu and drive screams to the point that my cpu temperature hits as high as 70C when doing very intensive cpu/drive tasks, but quickly cools back to 40C when done.  I am using Samsungs Windows NVME drivers, but I do not use the Intel Rapid Storage drivers; as I recall at the time I read somewhere not to use them.

 

 

EDIT:  I updated to the latest CrystalDiskMark 6.0.1 (64 Bit) software and re-did the testing today.  Here are the results using the CrystalDiskMark default settings on my T470 with a Samsung 960 EVO drive:

 

 

CrystalDiskMark 6.0.1 x64 (C) 2007-2018 hiyohiyo
Crystal Dew World : https://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

Sequential Read (Q= 32,T= 1) : 1778.710 MB/s
Sequential Write (Q= 32,T= 1) : 1557.596 MB/s
Random Read 4KiB (Q= 8,T= 8) : 690.669 MB/s [ 168620.4 IOPS]
Random Write 4KiB (Q= 8,T= 8) : 392.355 MB/s [ 95789.8 IOPS]
Random Read 4KiB (Q= 32,T= 1) : 317.484 MB/s [ 77510.7 IOPS]
Random Write 4KiB (Q= 32,T= 1) : 187.555 MB/s [ 45789.8 IOPS]
Random Read 4KiB (Q= 1,T= 1) : 41.418 MB/s [ 10111.8 IOPS]
Random Write 4KiB (Q= 1,T= 1) : 99.700 MB/s [ 24340.8 IOPS]

Test : 1024 MiB [C: 15.4% (64.2/417.0 GiB)] (x5) [Interval=5 sec]
Date : 2018/07/10 15:10:15
OS : Windows 10 Professional [10.0 Build 16299] (x64)

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