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Hetzner cloud additional volumes - Page 2
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Hetzner cloud additional volumes

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  • The Volumes seem great and they perform decently with the ZFS filesystem.
    I timed loading a 2.7 GB mysql database to an LXD container backed by a ZFS filesystem created on an attached volume. It was 2.1X slower than loading the same database directly on the VPS.

    I timed loading the same database on 5 different system setups, with the following relative times:

    • 1.00 Hetzner CX11 VPS
    • 1.04 Amazon AWS t2.small instance on EBS root filesystem
    • 1.62 Hetzner Dedicated Server + LXD container on ZFS filesystem with magnetic disks.
    • 2.14 Hetzner CX11 VPS + LXD container on ZFS filesystem on attached volume.
    • 5.16 Amazon AWS t2.small instance + LXD container on ZFS filesystem on attached EBS volume.

    Here are the detailed results of using time with the script that loads a 2.7G mysql database:

    Hetzner VPS CX11 1 vCPU, 2GB RAM
    Intel Xeon Processor (Skylake, IBRS)
    Ubuntu 18.04
    real 6m46.966s
    user 0m29.482s
    sys 0m2.410s

    Hetzner VPS CX11 1 vCPU, 2GB RAM + LXD
    LXD container on ZFS filesystem on an attached Volume
    Intel Xeon Processor (Skylake, IBRS)
    Host: Ubuntu 18.04
    Container: Ubuntu 16.04
    real 14m32.561s
    user 0m29.147s
    sys 0m2.898s

    Hetzner Dedicated Server, 16 GB RAM + LXD:
    LXD container on ZFS mirrored magnetic disk filesystem
    Intel(R) Xeon(R) CPU E3-1245 V2 @ 3.40GHz
    Host: Ubuntu 18.04
    Container: Ubuntu 16.04
    real 11m0.787s
    user 0m37.493s
    sys 0m1.872s
    (This server was also running about 30 other containers during the test, but not heavily loaded).

    Amazon AWS t2.small 2GB RAM
    Intel(R) Xeon(R) CPU E5-2676 v3 @ 2.40GHz
    Ubuntu 18.04
    real 7m4.754s
    user 0m29.750s
    sys 0m0.812s

    Amazon AWS t2.small 2GB RAM + LXD
    Intel(R) Xeon(R) CPU E5-2676 v3 @ 2.40GHz
    LXD container on ZFS filesystem on an attached EBS Volume
    Host: Ubuntu 18.04
    Container: Ubuntu 16.04
    real 35m0.417s
    user 0m26.000s
    sys 0m2.188s

    I was surprised with the poor performance of ZFS on AWS, so I did the test again on a different AWS region:
    real 34m50.913s
    user 0m25.965s
    sys 0m2.017s

    Thanked by 2vimalware Falzo
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