Question Patriot p210 - read speeds fluctuating

[GRavenCZ]

Hello,
i have noticed some weird behavior of my 7 months old ssd. You can see graph here https://postimg.cc/Mn4ZmPXs .
Should i send it back. It is still in warancy. Or it is normal after 7m for this cheap ssd?

Thank you

CPU: n6415
Motherboard: Mitac PD10EHI-N6415
Ram: 24GB DDR4
SSD/HDD: Patriot p210 1TB, Toshiba 2.5'' 1TB backup hdd
GPU: integrated
PSU: picoPSU 60w
Chassis:
OS: Ubuntu 22.04 LTS

 

[CountMike]

Hello,
i have noticed some weird behavior of my 7 months old ssd. You can see graph here https://postimg.cc/Mn4ZmPXs .
Should i send it back. It is still in warancy. Or it is normal after 7m for this cheap ssd?

Thank you

CPU: n6415
Motherboard: Mitac PD10EHI-N6415
Ram: 24GB DDR4
SSD/HDD: Patriot p210 1TB, Toshiba 2.5'' 1TB backup hdd
GPU: integrated
PSU: picoPSU 60w
Chassis:
OS: Ubuntu 22.04 LTS

It's normal for an SSD without any or a small RAM cache.

 

[GRavenCZ]

It's normal for an SSD without any or a small RAM cache.

Even on read? I think that ddr cache is important primary for write.

 

[CountMike]

Even on read? I think that ddr cache is important primary for write.

It works both ways as it still has to deal with same transfer interface.