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Test the disk I/O of your VPS

Test the disk I/O of your VPS

iKockaiKocka Member
edited August 2011 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
Tagged:
«1345678

Comments

  • 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
  • VPSfanVPSfan Member
    edited August 2011

    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.

  • 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
    

    slow motion

  • edited August 2011
    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
  • 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
    
  • 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
    

    slow motion

  • asfasf Member
    edited August 2011

    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..

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

    slow motion

  • asfasf Member

    @tommy Some prehistoric wht custom plan :)

  • 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.

  • 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
  • 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
  • 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
    
  • 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

  • DeorDeor Member

    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
    
  • 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
    
  • feartrichfeartrich Member
    edited August 2011

    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
    
  • 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.

  • feartrichfeartrich Member
    edited August 2011

    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?

  • Other clients in the node.

    Database trashing

    Overselling -> Swapping

    Hardware configuration (RAID or not, and what disks)

  • circuscircus Member
    edited August 2011

    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?

  • 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
    
  • @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
    Thanked by 1circus
  • hienhien Member

    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
    
  • ztecztec Member

    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?

  • How many disks are in the array? just 2?

    Francisco

    BuyVM - OpenVZ & KVM Based / TUN, PPTP, FUSE, SIT & GRE Enabled! / Stallion Control Panel
  • circuscircus Member
    edited August 2011

    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
    
  • kiloservekiloserve Member
    edited August 2011

    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 :)

  • @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.

    Thanked by 1Brandon_eNetSouth
  • kiloservekiloserve Member
    edited August 2011

    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.

    Thanked by 1Brandon_eNetSouth
  • ztecztec Member

    It's not an high tech server but it's not close to sloppy either. It does it's job very good for a great price, I own multiple dedicated servers and even more VPS'. Thanks for the info btw, got a little worried.

  • [root@centos6 ~]# dd if=/dev/zero of=test2 bs=16k count=64k conv=fdatasync
    65536+0 records in
    65536+0 records out
    1073741824 bytes (1.1 GB) copied, 2.5906 s, 414 MB/s

    Not bad for a 5400rpm 2.5inch sata drive

    FreeVPS.us - The oldest post to host VPS provider
  • dmmcintyre3 said: Not bad for a 5400rpm 2.5inch sata drive

    I'm jelly, any special trick? what brand is it?

  • dmmcintyre3dmmcintyre3 Member
    edited August 2011

    VMWare Fusion seems to ignore the conv=fdatasync part.

    It's the FUJITSU MJA2250BH FFS G1 that came with my MacBook Pro.

    FreeVPS.us - The oldest post to host VPS provider
  • fanfan Member

    Such 2.5' 5400rpm drive can only give a result around 60 - 70 mb/s in real world test.

  • tinyraytinyray Member
    edited August 2011

    dd test sometimes does say nothing; I did a very careful benchmark regarding the "computational capability" of VPS on a buyVM OVZ512 box with IO at ~183Mb/s and a 123systems OVZ192 box with IO at ~43Mb/s. I installed R software, a very well-known statistics utility, on these two boxes and ran a pre-processing analysis on 564 microarrays in CEL.gz format which includes the processes of decompress the data files, loading images and scaling the signals. The compressed data size is 1.6GB. I used the time command to record the computational time. The results are very interesting; the buyVM box performs worse than that of 123sys, please see attached,

    buyVM512 (5.95/month)

    real    7m12.764s
    user    6m08.802s
    sys     0m46.443s
    [root@bvm512 ~]# free -m
                 total       used       free     shared    buffers     cached
    Mem:          1024        245        778          0          0          0
    -/+ buffers/cache:        245        778
    Swap:            0          0          0
    

    123systems 192mb-special $15/year

    real    4m43.700s
    user    4m43.275s
    sys     0m3.432s
    [root@123sys192 ~]# free -m
                 total       used       free     shared    buffers     cached
    Mem:           384        190        193          0          0          0
    -/+ buffers/cache:        190        193
    Swap:            0          0          0
    

    I was really disappointed with the benchmark results, but not sure what to say. Perhaps I need to ask buyVM for a downgrade on the box. :)

  • tinyraytinyray Member
    edited August 2011

    I did the test again; it seems that things went worse on my buyvmOVZ512;

    real    8m10.887s
    user    6m32.293s
    sys     0m40.195s
    

    meanwhile, the 123sysOVZ192 does not change much,

    real    4m47.281s
    user    4m37.918s
    sys     0m8.584s
    

    In comparison with 123sys one, my box with buyOVZ (2 CPU cores; Intel(R) Xeon(R) CPU L5520 @ 2.27GHz, 2260.936MHz and 4GB cache) consumes more system resources but gives worse performance than that of 123sys (2vCPU, Intel(R) Xeon(R) CPU E5520 @ 2.27GHz, 1133.373MHz, 8GB cache)

    Anyone knows the reason? your explanation is appreciated!

  • dmmcintyre3 said: Not bad for a 5400rpm 2.5inch sata drive

    You are cheating.... :/

  • @tinray I'm still needing to get around to your ticket to see if there's something I may have screwed up in one of the newer pony kernels.

    It's quite possible I swapped something, or there's a setting on your VM, that i'm not noticing.

    If you're able to give me a bit of time to look into it, i'll check into it more later today after I'm done prepping the new router.

    Francisco

    BuyVM - OpenVZ & KVM Based / TUN, PPTP, FUSE, SIT & GRE Enabled! / Stallion Control Panel
  • please consider my ticket #249702. I did discuss with Anthony regarding this but we not yet come to an end lately.

  • tinyraytinyray Member
    edited August 2011

    My latest test;

    buyVM512

    real    7m26.194s
    user    6m21.136s
    sys     0m43.071s
    

    123sys192

    real    4m28.631s
    user    4m24.740s
    sys     0m3.040s
    

    I would upgrade my box to a 4core plan but I am much worry about the performance of the box. Once I upgrade it but find out it performs badly then I just leave it unused. I currently have a some of such boxes.

  • maxexcloomaxexcloo Member
    edited August 2011

    Each test was run three times and the middle ranking result was picked.

    BuyVM 128 MB OpenVZ (test):

    main@test:~$ dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync; rm test
    16384+0 records in
    16384+0 records out
    1073741824 bytes (1.1 GB) copied, 12.4161 s, 86.5 MB/s
    

    BuyVM 128 MB OpenVZ (user):

    main@user:~$ dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync; rm test
    16384+0 records in
    16384+0 records out
    1073741824 bytes (1.1 GB) copied, 8.2418 s, 130 MB/s
    

    BuyVM 256 MB OpenVZ (site):

    main@www:~$ dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync; rm test
    16384+0 records in
    16384+0 records out
    1073741824 bytes (1.1 GB) copied, 9.11935 s, 118 MB/s
    

    BuyVM 512 MB 500 GB Storage KVM (files):

    main@files:~$  dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync; rm test
    16384+0 records in
    16384+0 records out
    1073741824 bytes (1.1 GB) copied, 79.4276 s, 13.5 MB/s
    

    Hostigation 64 MB Backup OpenVZ (backup):

    main@backup:~$  dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync; rm test
    16384+0 records in
    16384+0 records out
    1073741824 bytes (1.1 GB) copied, 11.2041 s, 95.8 MB/s
    

    Hostigation 1024 MB KVM (mine):

    main@mine:~$ dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync; rm test
    16384+0 records in
    16384+0 records out
    1073741824 bytes (1.1 GB) copied, 4.75138 s, 226 MB/s
    

    Note: This morning the server was doing a solid 260 MB/s, currently it's under disk load :P

    Feral Hosting Helium Slot (feral):

    maxexcloo@shark:~$ dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync; rm test
    16384+0 records in
    16384+0 records out
    1073741824 bytes (1.1 GB) copied, 12.2792 s, 87.4 MB/s
    

    Note: There were about 20 active torrents running at the time of the test, I've gotten around 150 MB/s before.

    Feral Hosting Neon Slot (sheep):

    [sheep ~] dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync; rm test
    16384+0 records in
    16384+0 records out
    1073741824 bytes (1.1 GB) copied, 12.8169 s, 83.8 MB/s
    

    Note: There were about 20 active torrents running at the time of the test, I've gotten around 150 MB/s before.

    Reviews | Website | Projects (Minstall, Scripts, etc)
  • @maxexcloo, do feral give your own ip, or is it share ip?

  • Shared :P

    Reviews | Website | Projects (Minstall, Scripts, etc)
  • trelawneytrelawney Member
    edited August 2011

    VMLIT 256MB OpenVZ VPS pretty much idling at the time.

    $ 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, 8.85125 s, 121 MB/s
    

    LaaS (love as a service) : e.g. https://aga.pw/Lowendtalk (greek only)

  • InfinityInfinity Retired Staff
    edited August 2011

    Hostigation 768M OVZ VPS

    [humza@alpha ~]# 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, 12.0211 seconds, 89.3 MB/s

    4096MB of my Home Server :P (on VMware)

    [humza@frosty ~]# 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, 7.32166 seconds, 147 MB/s
    

    我是一个巨魔 (;

  • salmonsalmon Member
    edited August 2011

    qualityservers eliminator

    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, 29.6317 s, 36.2 MB/s

  • sandozsandoz Member
    edited August 2011

    same here but slower: qualityservers eliminator root@vps2:~# 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, 38.0414 s, 28.2 MB/s root@vps2:~#

    buyvm: root@vps3:~# dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync dd: writing `test': Disk quota exceeded 292+0 records in 291+0 records out 19103744 bytes (19 MB) copied, 0.053323 s, 358 MB/s root@vps3:~#

    free 15Gb backup space? https://copy.com?r=acPdcX

  • InfinityInfinity Retired Staff

    Eww... SemoWeb 1024MB (used for my webhost as Kloxo, to be migrated to cPanel soon):

    [root@thorin ~]# 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, 92.5219 seconds, 11.6 MB/s
    

    我是一个巨魔 (;

  • tuxtux Member

    QualityServers.co.uk UK XEN Eliminator on XM7 node

    [root@localhost ~]# 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, 90.6381 s, 11.8 MB/s
    [root@localhost ~]# 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, 72.988 s, 14.7 MB/s
    [root@localhost ~]# 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, 59.1093 s, 18.2 MB/s
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