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What's your worst disk I/O of your VPS? - Page 2
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What's your worst disk I/O of your VPS?

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Comments

  • @William said: Some VPS in Sweden:

    Which one? VPS in Sweden are usually really expensive so it'd be nice to know what provider still manages these awful results.

  • WilliamWilliam Member
    edited April 2012

    Oderland. But it is a 23EUR yearly plan, so im not complaining.
    DNS needs no diskio anyway.

  • 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, 2.95786 seconds, 363 MB/s

  • @Shadow said: 363 MB/s

    Is that your worst disk I/O? Showoff. :P

  • @littleguy said: Is that your worst disk I/O? Showoff. :P

    :D:D sorry i was think test your i/o :D

  • @Shadow said: :D:D sorry i was think test your i/o :D

    You didn't even write the provider, which makes the result completely useless. :P
    At least write which provider and also what parameters you sent to dd.

  • SpiritSpirit Member
    edited April 2012

    @William said: Oderland. But it is a 23EUR yearly plan, so im not complaining.

    That's strange, I never ever got under 25 MB/s here and even with that vps doesn't seems unresponsive even a bit. Maybe you should check it once again or/and contact them.

    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, 34.5199 s, 31.1 MB/s

    ioping -c 10 /
    4096 bytes from / (simfs /vz/private/591): request=1 time=0.1 ms
    4096 bytes from / (simfs /vz/private/591): request=2 time=0.2 ms
    4096 bytes from / (simfs /vz/private/591): request=3 time=0.1 ms
    4096 bytes from / (simfs /vz/private/591): request=4 time=0.2 ms
    4096 bytes from / (simfs /vz/private/591): request=5 time=0.2 ms
    4096 bytes from / (simfs /vz/private/591): request=6 time=0.1 ms
    4096 bytes from / (simfs /vz/private/591): request=7 time=0.2 ms
    4096 bytes from / (simfs /vz/private/591): request=8 time=0.2 ms
    4096 bytes from / (simfs /vz/private/591): request=9 time=0.2 ms
    4096 bytes from / (simfs /vz/private/591): request=10 time=0.2 ms

    --- / (simfs /vz/private/591) ioping statistics ---
    10 requests completed in 9002.6 ms, 6596 iops, 25.8 mb/s
    min/avg/max/mdev = 0.1/0.2/0.2/0.0 ms

    btw. plan cost 249.00 SEK = 28.1694 EUR/y (+ VAT, and they charge it even for non EU clients. Only VAT exception are companies with VAT number)

  • Even slower as before, and no - i did not pay VAT :)

    root@ns4-se :: ~# 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, 491.225 s, 2.2 MB/s

    no comment...

  • FranciscoFrancisco Top Host, Host Rep, Veteran

    @spirit - are they using virtuozzo?

    Francisco

  • No, SolusVM.

  • My Home Server with 2 30GB IDE drives in RAID 1.
    16384+0 records in
    16384+0 records out
    1073741824 bytes (1.1 GB) copied, 77.8624 s, 13.8 MB/s

  • @TheHackBox said: My Home Server with 2 30GB IDE drives in RAID 1.

    Seems very slow =/ That drives are faster afaik. Probably the RAID is killing them.

  • Xen at Vooservers, UK:

    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, 87.2373 s, 12.3 MB/s

    I've been bugging them about this, but they can't seem to improve the IO. Ah well.... I'm only using it for Openserver and also VPN, so that's ok. :-/

  • SpiritSpirit Member
    edited April 2012

    @William said: Even slower as before

    What's node you're on? I am at Node vz10 where 30 MB/s IO wait seems constant (wit some jump up here and there) and I don't feel any delays or slow performance at all. I think that you should really contact them.

    ioping -c 10 /
    4096 bytes from / (simfs /vz/private/591): request=1 time=0.1 ms
    4096 bytes from / (simfs /vz/private/591): request=2 time=0.2 ms
    4096 bytes from / (simfs /vz/private/591): request=3 time=0.2 ms
    4096 bytes from / (simfs /vz/private/591): request=4 time=0.2 ms
    4096 bytes from / (simfs /vz/private/591): request=5 time=0.2 ms
    4096 bytes from / (simfs /vz/private/591): request=6 time=0.2 ms
    4096 bytes from / (simfs /vz/private/591): request=7 time=0.2 ms
    4096 bytes from / (simfs /vz/private/591): request=8 time=0.1 ms
    4096 bytes from / (simfs /vz/private/591): request=9 time=0.2 ms
    4096 bytes from / (simfs /vz/private/591): request=10 time=0.1 ms

    --- / (simfs /vz/private/591) ioping statistics ---
    10 requests completed in 9002.7 ms, 6116 iops, 23.9 mb/s
    min/avg/max/mdev = 0.1/0.2/0.2/0.0 ms

    ~# 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, 18.8778 s, 56.9 MB/s

    ~# 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, 33.2687 s, 32.3 MB/s

    Even 32.3 MB/s doesn't seem something good however it's actually very responsive vps. Packages are installed in seconds and with upgrade process I don't experience some annoying delays.

    CPU model : Intel(R) Xeon(R) CPU E5420 @ 2.50GHz
    Number of cores : 1
    CPU frequency : 1246.940 MHz
    Total amount of ram : 128 MB
    Total amount of swap : 128 MB
    System uptime : 47 days, 15:37,
    Download speed : (14.7MB/s)
    I/O speed : 72.7MB/s

  • As expected, Virpus one of the worst overall but I haven't had a chance to nail down any dd benchmarks yet (because I/O is unstable).

    Here's one from today, an MD5 hash of a 14GB file:

    root@diseased:~# ./rhash64 -M --speed --percents filename
    filename 100%
    3d723035544e51f986a7b79f431bee00  filename
    
    Calculated in 3064.821 sec, 4.45 MBps
    

    Here's the matching ioping:

    --- . (simfs /dev/simfs) ioping statistics ---
    30 requests completed in 31382.2 ms, 13 iops, 0.0 mb/s
    min/avg/max/mdev = 8.5/78.7/225.5/59.6 ms
    

    But hey, you can use all 6 cores of the Phenom X6 1055T whenever your data has a chance to get to it!

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