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Slow copy speed from SSD to HDD with 100% CPU usage

Featured Replies

Hello,

As title says I have issues with copy speed. It tops out at 20-25Mb/s. I'm initiating the copy over the web interface so it should not be limited by any network speed. Files are around 1Gb so it is sequential writing to the HDD. I have WD Red 2Tb drives and Samsung nvme SSD for cache. File is cached, mover not yet run. While copy is running dashboard shows high CPU usage. Not sure if it includes iowait.

Once copy over CPU usage goes back to normal idle. Diagnostics made during copy operation.

Any help about what to check appreciated. Thanks

Screenshot_20250117-191934_1.png

Screenshot_20250117-192118.png

Screenshot_20250117-191750.png

tevenas-diagnostics-20250117-1924.zip

Solved by JorgeB

  • Community Expert

Try using Windows explorer instead, from disk share to disk share, it will bypass the network, and post the Windows explorer graph during a large file transfer

  • Author

Im using linux so i dont have that fancy graph windows explorer has but the copy speed is indeed ok. So is this an issue with Dynamix File Manager?

  • Community Expert
  • Solution

It's been known to underreport speeds.

  • Author

I feel like it is actually slow not just underreporting. Anyway, what alternative i can use while on phone? MC is very hard to manage on touch screen, total commander SMB plugin does not seem to bypass when copying from share to share. I'm looking for gui option here just to be on the same page but i guess its clear 🙂

Edited by daninet

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