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Your disk I/O
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Your disk I/O

edited August 2012 in General

Did a quick search and couldn't find any results so I thought I'd go ahead & make a thread. Post your disk I/O results here.

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

Here's one of mine:
1073741824 bytes (1.1 GB) copied, 5.78699 s, 186 MB/s

Comments

  • For the 156th time?

  • Turns out there's one here: http://www.lowendtalk.com/discussion/42/test-the-disk-io-of-your-vps

    Search wasn't exactly being effective..

    http://puu.sh/WRYJ

    Wrong keywords it seems.

  • Let's at least discuss and propose some other standard tests in addition to the boring dd test.
    Maybe also:
    ioping -c 10 .
    ioping -R .

    @serverbear any ideas for the tests? This is strictly about disk IO tests, not CPU/network/etc.

  • [root@testvps ~]# wget freevps.us/downloads/bench.sh -O - -o /dev/null|bash
    CPU model : Intel(R) Xeon(R) CPU L5420 @ 2.50GHz
    Number of cores : 8
    CPU frequency : 2500.224 MHz
    Total amount of ram : 2048 MB
    Total amount of swap : 3096 MB
    System uptime : 16 min,
    Download speed from CacheFly: 54.1MB/s
    Download speed from Linode, Atlanta GA: 8.39MB/s
    Download speed from Linode, Dallas, TX: 15.3MB/s
    Download speed from Linode, Tokyo, JP: 6.45MB/s
    Download speed from Linode, London, UK: 8.42MB/s
    Download speed from Leaseweb, Haarlem, NL: 10.3MB/s
    Download speed from Softlayer, Singapore: 5.94MB/s
    Download speed from Softlayer, Seattle, WA: 13.8MB/s
    Download speed from Softlayer, San Jose, CA: 17.9MB/s
    Download speed from Softlayer, Washington, DC: 42.7MB/s
    I/O speed : 126 MB/s

  • prometeusprometeus Member, Host Rep

    @rds100 said: For the 156th time?

    nobody use vps for anything else than run some tests. we should prepare a template with only a busybox, ssh, dd and wget :P

  • @prometeus said: we should prepare a template with only a busybox, ssh, dd and wget :P

    How would they run unixbench?

  • prometeusprometeus Member, Host Rep

    @miTgiB said: How would they run unixbench?

    a busybox alias would return the cached results taken once a day on similar vps :)

  • @prometeus said: return the cached results

    So there goes 1/2 your customer base ;)

  • Theres more options than just dd:

    IOPing
    Iozone
    Bonnie++
    FIO
    hdparm

    We're implenenting FIO at the moment for more accurate read/write speeds + IOPS.

    Here's an example of outputs from the different tests: http://liuyonggang.blog.com/2011/10/21/disk-performance-characterization-dd-fio-hdparm-bonnie-seekmark-and-etc/

    Thanked by 1ErawanArifNugroho
  • jhjh Member

    @AstoundingHost said: Did a quick search and couldn't find any results so I thought I'd go ahead & make a thread. Post your disk I/O results here.

    You need to learn how to search properly - there are hundreds of threads about this.

  • prometeusprometeus Member, Host Rep

    Iozone
    Bonnie++
    FIO
    hdparm

    These test are usually run on owned/dedicated system, remember that virtual machines share the I/O subsystem with dozens or hundreds of other neighbors and high I/O loads can affect production performances.

  • PacketVMPacketVM Member, Host Rep

    My HDD copies at 100000000mb/s

  • I was just about to add the IoZone + Bonnie to my vps benchmark.
    But I saw Francisco post that we are not allowed to run those in a shared environment such vps. So I didn't use it (except the host ask me to do it, or allowing me to run it)

    For a hammering test, I run all of this :

    • IoZone
    • Bonnie
    • Prime95
    • UnixBench
      and some hard benchmark which caused load to 600. :p

    So I just use normal benchmark like serverbear did

  • JacobJacob Member
    edited August 2012

    100% Pure IDE Power!

    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, 21.2225 s, 50.6 MB/s

    Your all Jelous, Ofcourse...

  • TazTaz Member

    I get around 15MB/S on my USB. Jelly ;)?

  • dmmcintyre3dmmcintyre3 Member
    edited August 2012

    way too slow, submitted a ticket complaining. @prometeus needs to pick better hardware.

    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, 2.57935 s, 416 MB/s
    
  • Our new SSD VPS nodes in InterNap Dallas:

    [root@vetest /]# dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync;unlink test
    16384+0 records in
    16384+0 records out
    1073741824 bytes (1.1 GB) copied, 1.25966 s, 852 MB/s

    Thanked by 1TheHackBox
  • @FTN_Kevin said: 852 MB/s

    wow

  • now that i looked back, i laughed at my I/O LOL

  • @serverbear make some shell script which downloads / compiles / installs the required tools and then runs the tests and summarizes the results?

  • # 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, 3.89631 s, 276 MB/s
    rm: remove regular file `test'? y
    
  • BlazeMuisBlazeMuis Member
    edited August 2012

    My VPS from @prometeus

    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, 11.1712 s, 96.1 MB/s

    I thought it would be more

  • johnjohn Member
    dd if=/dev/zero of=iotest bs=64k count=16k conv=fdatasync && rm -rf iotest
    16384+0 records in
    16384+0 records out
    1073741824 bytes (1.1 GB) copied, 1.41549 s, 759 MB/s

    Let's also share ioping results.

    ioping -c 10
    request=1 time=0.0 ms
    request=2 time=0.1 ms
    request=3 time=0.1 ms
    request=4 time=0.1 ms
    request=5 time=0.1 ms
    request=6 time=0.1 ms
    request=7 time=0.1 ms
    request=8 time=0.1 ms
    request=9 time=0.1 ms
    request=10 time=0.1 ms
    10 requests completed in 9002.1 ms, 10730 iops, 41.9 mb/s
  • @joodle said: My VPS from @prometeus

    Which node are you? PM14?

  • @ErawanArifNugroho said: Which node are you? PM14?

    I'm on PM12

  • prometeusprometeus Member, Host Rep

    @joodle said: I'm on PM12

    PM12 run on a bit old but rock solid fiber channel SAN, which handle loads without problems. sequential speed isn't everything ;)

  • @prometeus said: PM12 run on a bit old but rock solid fiber channel SAN, which handle loads without problems. sequential speed isn't everything ;)

    Yeah, Never had a problem with it :D

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