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  3. VPS Disk Speed - Need Help.

VPS Disk Speed - Need Help.

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    • humptydumptyH Offline
      humptydumptyH Offline
      humptydumpty
      wrote on last edited by
      #1

      I'm on Contabo's Cloud VPS L plan w/ NVME storage + their extra storage module (which doubles my 200GB to 400GB total NVME storage) and I ran the following command twice to test the disk speed and got 454 MB/s on my first run and 330 MB/s on my second run. This looks like regular SSD speeds, unless I'm mistaken and used the wrong command for NVME? A penny for your thoughts!

      dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync && rm -rf test
      

      ac3ccf3a-0675-4c21-8624-54e34ab57ca0-image.png

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      • nebulonN Offline
        nebulonN Offline
        nebulon
        Staff
        wrote on last edited by
        #2

        You can also measure speeds with hdparm -t <dev> to get another data point.

        humptydumptyH 1 Reply Last reply
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        • nebulonN nebulon

          You can also measure speeds with hdparm -t <dev> to get another data point.

          humptydumptyH Offline
          humptydumptyH Offline
          humptydumpty
          wrote on last edited by humptydumpty
          #3

          To figure out what my partitions looked like, a search led me to the following which listed all the partitions with their size and other info.

          sudo lsblk -o NAME,FSTYPE,SIZE,MOUNTPOINT,LABEL
          

          Then, I was able to use Nebulon's command

          hdparm -t /dev/sda3
          

          and the result is 416.88 MB/s

          9c27896f-cb68-47a1-865f-d2f11230c49e-image.png

          @nebulon it looks like I need to get in touch with Contabo support, right? Unless there's something I can do to fix this?

          Edit: running some more tests..

          test drive cache read speed

          hdparm -T /dev/sda3
          

          878f6e85-c674-4543-8c05-b72edfc86ddc-image.png

          OK, this looks like NVME speeds but what's the deal with the write!?

          nebulonN 1 Reply Last reply
          0
          • humptydumptyH humptydumpty

            To figure out what my partitions looked like, a search led me to the following which listed all the partitions with their size and other info.

            sudo lsblk -o NAME,FSTYPE,SIZE,MOUNTPOINT,LABEL
            

            Then, I was able to use Nebulon's command

            hdparm -t /dev/sda3
            

            and the result is 416.88 MB/s

            9c27896f-cb68-47a1-865f-d2f11230c49e-image.png

            @nebulon it looks like I need to get in touch with Contabo support, right? Unless there's something I can do to fix this?

            Edit: running some more tests..

            test drive cache read speed

            hdparm -T /dev/sda3
            

            878f6e85-c674-4543-8c05-b72edfc86ddc-image.png

            OK, this looks like NVME speeds but what's the deal with the write!?

            nebulonN Offline
            nebulonN Offline
            nebulon
            Staff
            wrote on last edited by
            #4

            @humptydumpty the cached read -T option is not very useful in this case. Surely helps to have that fast but it is just cached.

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            • humptydumptyH humptydumpty referenced this topic on
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