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Test the disk I/O of your VPS

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  • NickPNickP Member
    edited March 2012

    @vps6net said: @NickP @kbar Let us know if you're seeing speeds like that, even 60-80 MB/s is no good -- you should be getting 125 or above with those write tests.

    Looking good today ;)

    (VPS6.NET VPS)
    [root@server ~]# 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, 8.43322 seconds, 127 MB/s

    Also sending you a Pm :)

  • JTRJTR Member

    @Francisco said: @JTR said: 1073741824 bytes (1.1 GB) copied, 10.026 s, 107 MB/s

    What's uname -a report?

    I'm thinking pony6-1?

    If not you should log a ticket for us to check that box, the network should be a lot more like 60 - 80MB/sec

    Francisco

    I had changed my host name, but the control panel reports "512 (node07)".

    I re-ran the test, here's another run through it — IO seems better, network is not too good.

    CPU model :  Intel(R) Xeon(R) CPU           L5520  @ 2.27GHz
Number of cores : 2
CPU frequency :  2266.746 MHz
Total amount of ram : 1024 MB
Total amount of swap : 0 MB
System uptime :   35 days, 14:58,       
Download speed from CacheFly: 29.6MB/s 
Download speed from Linode, Atlanta GA: 1.99MB/s 
Download speed from Linode, Dallas, TX: 5.69MB/s 
Download speed from Linode, Tokyo, JP: 836KB/s 
Download speed from Softlayer, Seattle, WA: 3.17MB/s 
Download speed from Softlayer, San Jose, CA: 4.07MB/s 
Download speed from Softlayer, Washington, DC: 1.23MB/s 
I/O speed :  130 MB/s

1073741824 bytes (1.1 GB) copied, 5.14333 s, 209 MB/s

    Should I open up a ticket?

  • flyfly Member

    @jtr can you post that test script? I can't find it with a quick google.

  • JTRJTR Member

    @kbar

    freevps.us/downloads/bench.sh

    Thanked by 1fly
  • aubsaubs Member
    edited March 2012

    vooservers.com
    Node : MAIVPS05
    (Maidtone, UK)

    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, 19.0031 s, 56.5 MB/s

    quickweb.co.nz
    Node : Spitfire (UK)
    (London, UK)

    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, 30.1121 s, 35.7 MB/s

  • FranciscoFrancisco Top Host, Host Rep, Veteran

    @JTR said: Should I open up a ticket?

    Sure, just link this post.

    It's possible when you did the IO test it was in the midst of crons or what have you. 200M/sec sounds good and it likely spikes higher.

    Francisco

  • TaylorTaylor Member

    BlueVM
    128 MB of Guaranteed Ram
    256 MB of Burstable RAM

    1073741824 bytes (1.1 GB) copied, 14.9847 s, 71.7 MB/s

  • eva2000eva2000 Veteran

    First timer for KVM based VPS nabbed it on latest stock release last week :) Seems disk I/O differing from my OpenVZs all with buyvm ?

    Comparing the KVM vs OpenVZ both with CentOS 6.2 32bit EXT4:

    --------
    OpenVZ

    [root@openvz ~]# dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync; rm -rf test
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 9.14105 s, 117 MB/s

[root@openvz ~]# uname -r
2.6.18-6-pve

[root@openvz ~]# df -T
Filesystem    Type   1K-blocks      Used Available Use% Mounted on
/dev/simfs
          reiserfs    52428800   3707384  48721416   8% /
none         tmpfs      524288         4    524284   1% /dev
tmpfs        tmpfs      524288        16    524272   1% /tmp

    --------
    KVM

    [root@kvm ~]# dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync; rm -rf test
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 17.8538 s, 60.1 MB/s

[root@kvm ~]# uname -r
2.6.32-220.7.1.el6.i686

[root@kvm ~]# df -T
Filesystem    Type   1K-blocks      Used Available Use% Mounted on
/dev/mapper/VolGroup-lv_root
              ext4    50065640   2216116  45306320   5% /
tmpfs        tmpfs      255576         0    255576   0% /dev/shm
/dev/vda1     ext4      495844     49713    420531  11% /boot
tmpfs        tmpfs      255576         0    255576   0% /tmp

    **KVM disk and NIC = virtio **

    lsmod | grep virtio
virtio_balloon          3519  0 
virtio_net             12380  0 
virtio_blk              5496  3 
virtio_pci              5294  0 
virtio_ring             6576  4 virtio_balloon,virtio_net,virtio_blk,virtio_pci
virtio                  3669  4 virtio_balloon,virtio_net,virtio_blk,virtio_pci

lspci | grep Virt
00:03.0 Ethernet controller: Red Hat, Inc Virtio network device
00:04.0 Ethernet controller: Red Hat, Inc Virtio network device
00:05.0 SCSI storage controller: Red Hat, Inc Virtio block device
00:06.0 RAM memory: Red Hat, Inc Virtio memory balloon

    However, network speed is excellent on KVM VPS

    single threaded wget (speedtest)
    vs
    multi-threaded (2 threads) axel download accelerator (speedtestaxel)

    [root@kvm]# ./speedtest2.sh speedtest
-------------------------------------------------------------
CPU model :  QEMU Virtual CPU version 1.0
Number of cores : 2
CPU frequency :  3192.748 MHz
Total amount of ram : 499 MB
Total amount of swap : 1023 MB
System uptime :   3:47,       
-------------------------------------------------------------
Download speed from CacheFly: 68.8MB/s 
Download speed from Linode, Atlanta GA: 2.23MB/s 
Download speed from Linode, Dallas, TX: 8.76MB/s 
Download speed from Linode, Tokyo, JP: 8.44MB/s 
Download speed from Linode, London, UK: 4.37MB/s 
Download speed from Leaseweb, Haarlem, NL: 3.92MB/s 
Download speed from Softlayer, Singapore: 3.15MB/s 
Download speed from Softlayer, Seattle, WA: 13.5MB/s 
Download speed from Softlayer, San Jose, CA: 41.2MB/s 
Download speed from Softlayer, Washington, DC: 6.79MB/s 

[root@kvm]# ./speedtest2.sh speedtestaxel
-------------------------------------------------------------
CPU model :  QEMU Virtual CPU version 1.0
Number of cores : 2
CPU frequency :  3192.748 MHz
Total amount of ram : 499 MB
Total amount of swap : 1023 MB
System uptime :   3:51,       
-------------------------------------------------------------
Download speed from CacheFly: 67.59 MB/s
Download speed from Linode, Atlanta GA: 10.66 MB/s
Download speed from Linode, Dallas, TX: 17.58 MB/s
Download speed from Linode, Tokyo, JP: 15.35 MB/s
Download speed from Linode, London, UK: 8.04 MB/s
Download speed from Leaseweb, Haarlem, NL: 9.98 MB/s
Download speed from Softlayer, Singapore: 4.30 MB/s
Download speed from Softlayer, Seattle, WA: 31.07 MB/s
Download speed from Softlayer, San Jose, CA: 67.28 MB/s
Download speed from Softlayer, Washington, DC: 4.33 MB/s
  • FranciscoFrancisco Top Host, Host Rep, Veteran

    @eva2000 said: First timer for KVM based VPS nabbed it on latest stock release last week :) Seems disk I/O differing from my OpenVZs all with buyvm ?

    It will some since the OVZ's have a much bigger array. You can log a ticket and we can at least check our side to make sure all is OK :)

    The OVZ looks a bit low so you may want to ticket that as well. If you're on node57/58, then the IO looks right for now.

    Francisco

  • eva2000eva2000 Veteran
    edited March 2012

    Ah that would explain OpenVZ's better speed :)

    2nd run seems better/cached

    [root@openvz ~]# dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync; rm -rf test
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 7.0963 s, 151 MB/s

    got 2x more openvz VPS with buyvm one on same node as first openvz above so disk I/O close

    2nd openvz same node VPS

    1st run

    [root@openvz2 ~]# dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync; rm -rf test
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 6.12499 s, 175 MB/s

    2nd run

     [root@openvz2 ~]# dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync; rm -rf test
 16384+0 records in
 16384+0 records out
 1073741824 bytes (1.1 GB) copied, 5.97544 s, 180 MB/s

    3rd openvz different node VPS

    1st run

     [root@openvz3 ~]# dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync; rm -rf test
 16384+0 records in
 16384+0 records out
 1073741824 bytes (1.1 GB) copied, 12.2858 s, 87.4 MB/s

    2nd run

     [root@openvz3 ~]# dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync; rm -rf test
 16384+0 records in
 16384+0 records out
 1073741824 bytes (1.1 GB) copied, 4.50728 s, 238 MB/s
  • NateN34NateN34 Member
    edited March 2012

    BuyVM 1024 OpenVZ:

    root@custard:~# 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, 3.16738 s, 339 MB/s

    Hostigation 1024 KVM:

    root@danish:~# 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, 6.25823 s, 172 MB/s

    ChicagoVPS 512 XEN:

    root@creamfilled:~# 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, 27.4499 s, 39.1 MB/s

    KiloServe 384 MB XEN:

    root@website:~# 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, 9.47876 s, 113 MB/s

  • FranciscoFrancisco Top Host, Host Rep, Veteran

    @eva2000 - likely just a busy node then :) If you feel a bite in lag just let me know and we'll see what we can do. We have a 2.6.32 node still in action that we push troubled customers to, especially ones that love to eat harddrives.

    Nate's speeds are a lot more common around here for OVZ.

    Francisco

  • assassinassassin Member

    Here are from my latest VPSs:

    BuyVM 512 MB OpenVZ

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

    16384+0 records in
    16384+0 records out
    1073741824 bytes (1.1 GB) copied, 5.75904 s, 186 MB/s

    Hostigation OVZ-1024

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

    16384+0 records in
    16384+0 records out
    1073741824 bytes (1.1 GB) copied, 15.5739 s, 68.9 MB/s

  • rethinkvpsrethinkvps Member

    @NickP Wow that's wrongly slow, I would contact support about that.

  • CBebopCBebop Member

    BuyVM 128 MB 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, 4.93622 s, 218 MB/s

    BuyVM 256 MB 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, 7.29418 s, 147 MB/s

    BuyVM 512 MB KVM Storage

    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, 1.63124 s, 658 MB/s

    Hostigation 256 MB 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, 6.55324 s, 164 MB/s

    SecureDragon 96 MB 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, 9.81746 s, 109 MB/s

  • JacobJacob Member

    @Francisco What the hell do you put in your servers! > . >

  • AldryicAldryic Member

    Pony sauce :3

  • AndriAndri Member

    @CBebop said: 1073741824 bytes (1.1 GB) copied, 1.63124 s, 658 MB/s

    O.O

  • JacobJacob Member

    @Aldryic You guys must spend a fortune on Drives and RAID Cards.

  • CBebopCBebop Member

    @Andri said: O.O

    My reaction exactly when I first ran one on the new storage node.

  • rds100rds100 Member

    I would guess a RAID card with crazy amount of cache (1GB or more).

  • FranciscoFrancisco Top Host, Host Rep, Veteran

    @rds100 said: I would guess a RAID card with crazy amount of cache (1GB or more).

    512M.

    There's a lot of optimizing that goes into each rig. We may take a long time to get stock runs out, but that's because we spend so much time making sure everything is smooth.

    New storage is a fucking beast.

    Francisco

  • RophRoph Member

    Thought I'd update this since I have multiple LEBs now :)

    Quickweb 384/512 OVZ in Phoenix, $40/yr:
    1073741824 bytes (1.1 GB) copied, 1.19009 s, 902 MB/s
    1073741824 bytes (1.1 GB) copied, 1.04502 s, 1.0 GB/s
    1073741824 bytes (1.1 GB) copied, 1.09241 s, 983 MB/s

    Yeah.... wow =o

    Minivps 128M OVZ, £1.50/mo:
    1073741824 bytes (1.1 GB) copied, 21.4787 s, 50.0 MB/s
    1073741824 bytes (1.1 GB) copied, 31.0556 s, 34.6 MB/s
    1073741824 bytes (1.1 GB) copied, 16.9466 s, 63.4 MB/s

    BuyVM 128/256M OVZ, $15/yr:
    1073741824 bytes (1.1 GB) copied, 5.25055 s, 205 MB/s
    1073741824 bytes (1.1 GB) copied, 4.80154 s, 224 MB/s
    1073741824 bytes (1.1 GB) copied, 5.39224 s, 199 MB/s

    And not really an LEB but for kicks, my ServInt 1024/2048 Virtuozzo VPS, $59/mo:
    1073741824 bytes (1.1 GB) copied, 14.8901 s, 72.1 MB/s
    1073741824 bytes (1.1 GB) copied, 29.4249 s, 36.5 MB/s
    1073741824 bytes (1.1 GB) copied, 10.2053 s, 105 MB/s
    1073741824 bytes (1.1 GB) copied, 12.2147 s, 87.9 MB/s

  • SoylentSoylent Member

    128 OVZ from Secure Dragon

    stephen@nsa:~$ 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, 5.39966 s, 199 MB/s

    256 OVZ with BuyVM

    stephen@kgb:~$ 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, 3.98144 s, 270 MB/s
  • twaintwain Member

    Old thread revival of the day.

    $12/yr Semoweb:

    tp-sw:~ # 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, 1.12451 s, 955 MB/s

  • matthewvzmatthewvz Member, Host Rep

    6.50/M 1GB ram from LFCVPS/LFCHosting
    16384+0 records in
    16384+0 records out
    1073741824 bytes (1.1 GB) copied, 7.58216 s, 142 MB/s

  • AnthonySmithAnthonySmith Member, Patron Provider

    happy 1 year necro

    How is your read speed @twain ?

  • twaintwain Member

    @AnthonySmith - let me know if a different command is better..

    tp-sw:~ # dd if=test of=/dev/null bs=64k count=24000
    16384+0 records in
    16384+0 records out
    1073741824 bytes (1.1 GB) copied, 0.120681 s, 8.9 GB/s

    tp-sw:~ # dd if=test of=/dev/null bs=64k count=24000
    16384+0 records in
    16384+0 records out
    1073741824 bytes (1.1 GB) copied, 0.339974 s, 3.2 GB/s

    tp-sw:~ # dd if=test of=/dev/null bs=64k count=24000
    16384+0 records in
    16384+0 records out
    1073741824 bytes (1.1 GB) copied, 0.171461 s, 6.3 GB/s

  • AnthonySmithAnthonySmith Member, Patron Provider

    hdparm -tT /dev/sda

  • twaintwain Member
    edited April 2013

    @AnthonySmith said: hdparm -tT /dev/sda

    hdparm not going to work on openvz container unless I am mistaken?

This discussion has been closed.