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Test the disk I/O of your VPS

iKockaiKocka
in General

BuyVM OpenVZ (256/512 MB RAM, 30 GB HDD, 1 TB B/W)

dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 5.78672 s, 186 MB/s
dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 5.93356 s, 181 MB/s

Hostigation KVM (128 MB RAM, 10 GB HDD, 500 GB B/W)

dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 6.29459 s, 171 MB/s
dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 11.1185 s, 96.6 MB/s

eNetSouth OpenVZ (786/1024 MB RAM, 20 GB HDD, 1000 GB B/W)

dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 31.4363 s, 34.2 MB/s
dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 13.1464 s, 81.7 MB/s
dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 13.4436 s, 79.9 MB/s

WhyNOTaVPS OpenVZ (786/1024 MB RAM, 33 GB HDD, 444 GB B/W)

dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 24.3903 s, 44.0 MB/s
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Comments

  • luis123456luis123456

    My MyCpanel Free VPS:

    [root@l90 ~]# dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync 16384+0 records in 16384+0 records out 1073741824 bytes (1.1 GB) copied, 20.6291 seconds, 52.0 MB/s

    I'm looking for a sponsored KVM VPS, but I'm not in a hurry. Just want to hear what you might offer to me
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  • VPSfanVPSfan

    KiloServe 1GB RAM Low End Box special

    dd if=/dev/zero of=/tmp/output.img bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 4.27653 seconds, 251 MB/s

    RapidoVPS 256MB RAM $2.50 month special

    dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 33.215 s, 32.1 MB/s

    I would post my W2Servers benchmark ... if the stupid VPS was running but it's been down so long I don't even bother anymore.

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  • tommytommy

    not too fast : dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync

    16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 18.7822 seconds, 57.2 MB/s

    Net

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  • BoltersdriveerBoltersdriveer 
    dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 18.2208 seconds, 58.9 MB/s
    LoomHosts VPS Servers - Dallas VPS | Reliable, Affordable, Solid | MyRepublic - Singapore's Bold New ISP
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  • MarcelMarcel

    A fresh BuyVM OpenVZ-128MB:

    dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 6.10176 seconds, 176 MB/s
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  • tommytommy

    hostigation 64 MB

    dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync

    16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 9.86716 s, 109 MB/s

    Net

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  • asfasf

    TurnKey Internet

    dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 64.3875 s, 16.7 MB/s

    Hetzner

    dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 112.157 s, 9.6 MB/s

    ...not so lowendbox but very shity..

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  • tommytommy

    @asf, which plan do you have with turnkey? (that's very very slow disk I/O)

    Net

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  • asfasf

    @tommy Some prehistoric wht custom plan :)

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  • MarcelMarcel

    A little over a week later, the same BuyVM OpenVZ-128MB:

    dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 43.9629 seconds, 24.4 MB/s

    Ouch.

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  • FranciscoFrancisco

    Hi Marcel,

    Could you log a ticket? It's quite possible there's a bad drive, but we'll need to track it first :)

    Thanks,

    Francisco

    BuyVM - OpenVZ & KVM Based / TUN, PPTP, FUSE, SIT & GRE Enabled! / Stallion Control Panel
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  • xprotoceptxprotocept

    Chicago VPS 1GB Ram

    dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 15.1019 s, 71.1 MB/s
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  • yomeroyomero

    A fresh Rackspace VPS lol

    # dd if=/dev/zero of=test bs=64k conv=fdatasync count=20k
20480+0 records in
20480+0 records out
1342177280 bytes (1.3 GB) copied, 4.39452 s, 305 MB/s

    My buyvm is starting to degrade xD but still the fastest of all my LEBs

    dd if=/dev/zero of=test bs=64k conv=fdatasync count=10k
10240+0 records in
10240+0 records out
671088640 bytes (671 MB) copied, 7.91368 s, 84.8 MB/s
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  • MarcelMarcel

    Francisco said: Could you log a ticket? It's quite possible there's a bad drive, but we'll need to track it first :)

    Will do. Please don't suspend my account and delete all the backups ;D

    Flag • Disagree Agree Thanks
  • DeorDeor

    Criperz Prodigy 128meg annual:

    ~# dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 114.226 s, 9.4 MB/s

    Oversold much?! Very variable, same test reported 1.9 MB/s a minute later.

    BuyVM 256meg:

    :~# dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 7.92439 s, 135 MB/s

    BuyVM 128meg annual:

    ~# dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 7.06734 s, 152 MB/s

    QualityServers 128meg annual (from the recent deal):

    ~# dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 39.2065 s, 27.4 MB/s

    bHosts 1.5gb:

    dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 36.7724 s, 29.2 MB/s
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  • circuscircus

    evorack 128 xen (not as impressive as other but very stable, no complain):

    dd if=/dev/zero of=test bs=64k conv=fdatasync count=20k
20480+0 records in
2 0480+0 records out
1342177280 bytes (1.3 GB) copied, 24.7226 s, 54.3 MB/s

    vooserver 128 xen (just like evorack, no complain):

    dd if=/dev/zero of=test bs=64k conv=fdatasync count=20k
20480+0 records in
20480+0 records out
1342177280 bytes (1.3 GB) copied, 22.2575 s, 60.3 MB/s

    edis 128 kvm (always have great io, I wish they have better billing/support panel):

    dd if=/dev/zero of=test bs=64k conv=fdatasync count=6k 
6144+0 records in
6144+0 records out
402653184 bytes (403 MB) copied, 2.20145 s, 183 MB/s

    bitcable 256 kvm (new, for test):

    dd if=/dev/zero of=test bs=64k conv=fdatasync count=20k
20480+0 records in
20480+0 records out
1342177280 bytes (1.3 GB) copied, 11.8234 s, 114 MB/s

    securedragon 96 xen:

    dd if=/dev/zero of=test bs=64k conv=fdatasync count=20k
20480+0 records in
20480+0 records out
1342177280 bytes (1.3 GB) copied, 24.0986 s, 55.7 MB/s
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  • feartrichfeartrich

    BuyVM 128 MB new

    dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 6.555 s, 164 MB/s
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  • kalamkalam

    CripperZ 64 MB

    dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 71.2935 s, 15.1 MB/s

    CripperZ 128 MB

    dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 73.2753 s, 14.7 MB/s

    123Systems 192 MB

    dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 25.0444 s, 42.9 MB/s

    123Systems 512 MB

    dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 36.6829 seconds, 29.3 MB/s

    SpotVPS 1 GB

    dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 24.0437 seconds, 44.7 MB/s

    Up2VPS 1 GB

    dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 17.3729 s, 61.8 MB/s

    IPAPco SuperVPS 4 GB

     dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 14.8628 s, 72.2 MB/s

    IPAPco SuperVPS 2GB

    dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 26.5291 s, 40.5 MB/s

    Cripperz i/o is very disappointing. Also funny that my cheaper 123Systems one is faster than the more expensive one.

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  • feartrichfeartrich

    damn buyvm 128 mb, which is the cheapest out of all of them, is smoking everyone else lol

    my question is (out of curiosity): what affects disk i/o speed on a vps?

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  • yomeroyomero

    Other clients in the node.

    Database trashing

    Overselling -> Swapping

    Hardware configuration (RAID or not, and what disks)

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  • circuscircus

    I'm still wondering why we should use bs=64k for dd test? is this value some kind of standard? if it is, why 64k?

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  • gianggiang

    SpotVPS - 256MB

    dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 25.6696 s, 41.8 MB/s

    BuyVM - 128MB OpenVZ

    dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 11.1968 s, 95.9 MB/s

    FeHosting - 256MB OpenVZ

    dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 27.7938 s, 38.6 MB/s

    ⌦ BudgetVPS: Where to find the cheapest VPS offer ⌦ DICHVU.IT: All about SSL - PositiveSSL from $7.4/year - EV SSL from $50/year ⌦ My blog: A small place of me :D

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  • FranciscoFrancisco

    @circus - it's a reasonable middle grounds for most RAID stripe sizes and if the disk is SSD or mechanical. SSD's can handle say, a 4k block size, where as a mechanical drive won't be able to handle that kind of IOP's without giving really poor results (like 2 - 3MB/sec per disk kinda crap)

    Francisco

    BuyVM - OpenVZ & KVM Based / TUN, PPTP, FUSE, SIT & GRE Enabled! / Stallion Control Panel
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  • hienhien

    123Systems - 192MB OpenVZ (Dallas)

    dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 20.8858 s, 51.4 MB/s

    123Systems - 256MB OpenVZ(Chicago)

    dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 41.675 s, 25.8 MB/s

    BuyVM - 256MB KVM

    dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 6.13831 s, 175 MB/s
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  • ztecztec

    1073741824 bytes (1.1 GB) copied, 17.421 seconds, 61.6 MB/s

    Fuck this is one of my dedicated servers running in Raid 1 if I remember, it's not very loaded, how can I "fix" this?

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  • FranciscoFrancisco

    How many disks are in the array? just 2?

    Francisco

    BuyVM - OpenVZ & KVM Based / TUN, PPTP, FUSE, SIT & GRE Enabled! / Stallion Control Panel
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  • circuscircus

    ztec said: Fuck this is one of my dedicated servers running in Raid 1 if I remember

    io wise, raid 1 is no different than no raid at all CMIIW and 61 MB/s is normal for sata ^_^ drive

    my desktop:

    dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out 
1073741824 bytes (1.1 GB) copied, 143.523 s, 7.5 MB/s

    something must be really really wrong :(

    edit: It was only a bad cable, thank god.

    dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 13.195 s, 81.4 MB/s
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  • kiloservekiloserve

    ztec said: 1073741824 bytes (1.1 GB) copied, 17.421 seconds, 61.6 MB/s

    That's pretty normal for your typical RAID1 SATA drive dedicated server.

    This is why you'll often see VPS hitting 150 and even 250 MB/s disk writes... it's due to the multiple disk spindles. If you look at the tests above, most of us VPS companies use up to 16 hard drives in our RAID arrays compared to your dedicated running 2 drives in RAID1 (mirror).

    And nobody even posts read speeds but it's not uncommon to get 1GB/s+ reads on a quality VPS.

    A dedicated isn't necessarily faster than a VPS.

    Dollar for dollar, every one of our VPS' would whup a dedicated in processing power and disk I/O :)

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  • iKockaiKocka

    @kiloserve: Samsung's SpinPoint F3, WD's Black Caviar and RE4 all write/read above 100 MB/s. A dedicated isn't necessarily faster than a VPS, but you can atleast use all resources, not only burst them.

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  • kiloservekiloserve

    You won't commonly find the Spinpoints and WD Blacks in dedicated servers.

    Most dedicateds use the WD RE3 drives or standard desktop drives which were about 60-70 Mb/s.

    Some providers now are using the RE4's.

    I'm guessing ztec has an RE3 or older desktop drive and that is about the right speed for those drives.

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