Tanya tentang IO speed

Discussion in 'VPS (Virtual Private Server)' started by merkurius, 14 May 2012.

Thread Status:
Not open for further replies.
  1. merkurius

    merkurius Poster 2.0

    Messages:
    312
    Likes Received:
    24
    Trophy Points:
    18
    halo para penghuni DWH saya maw nanya nih... saya kan ada account reseller vps di salah hoster indo.. nah karena iseng2 saya tes cek IO speednya menggunakan command ini

    Code:
    dd if=/dev/zero of=iotest bs=64k count=16k conv=fdatasync  
    dan yg saya dapat hasil dr 2 node berbedap dalam 1 reseller account itu 5,6 mbps dan 3,8 mbps...
    apakah ini termasuk sangat rendah? karena dari tetangga dapat io speed 67,6 mbps..
    apa pula akibatny kalo IO speed yg terlalu rendah
     
  2. drupadi

    drupadi Apprentice 1.0 Web Hosting (Company)

    Messages:
    213
    Likes Received:
    35
    Trophy Points:
    28
    Kendala di VPS kebanyakan disk i/o yang rendah, saya pun begitu di KVM.
    Untuk 5.6Mbps dan 3.8 Mbps termasuk rendah, bagusnya sekitar 10Mbps keatas.
    Akibatnya resource RAM & CPU masih banyak tapi vps terasa lambat karena disk I/O rendah.
     
  3. wowrack

    wowrack Beginner 2.0

    Messages:
    54
    Likes Received:
    4
    Trophy Points:
    8
    iseng-iseng ngikutan test pakek command di atas pd vps sendiri :

     
  4. cpserv

    cpserv Expert 1.0

    Messages:
    866
    Likes Received:
    123
    Trophy Points:
    43
  5. BennyKusman

    BennyKusman Hosting Guru DWH Guardian Web Hosting (Company)

    Messages:
    2,234
    Likes Received:
    239
    Trophy Points:
    63
    apakah ada program yang jalan pada waktu di tes?
    setahu saya, kalau raid10, dd biasa > 100MB/s... tapi tergantung juga apa saja program yang sedang berjalan..
    yang saya baca di wht, command 'dd' tidak begitu akurat untuk mendiskripsikan IO speed.. saran cpserv tentang ioping mungkin lebih tepat..
     
  6. cpserv

    cpserv Expert 1.0

    Messages:
    866
    Likes Received:
    123
    Trophy Points:
    43
    buat perbandingan aja.

    OS : Debian 6 32bit semuanya
    RAM : 256-512MB
    HD : SATA II
    Environment : KVM VPS

    Raid1 Software Raid
    Raid1 Hardware Raid
    Raid10 Hardware Raid (WriteThrough Cache)
    Raid10 Hardware Raid (WriteBack Cache)
     
  7. GriyaHosting

    GriyaHosting Expert 1.0

    Messages:
    966
    Likes Received:
    76
    Trophy Points:
    28
    ikutan test dengan xen hvm raid hardware 10 harddisk wdc re4 :
    dd if=/dev/zero of=iotest bs=64k count=16k conv=fdatasync
    16384+0 records in
    16384+0 records out
    1073741824 bytes (1.1 GB) copied, 12.8099 seconds, 83.8 MB/s
     
  8. lutfiutama

    lutfiutama Apprentice 1.0

    Messages:
    355
    Likes Received:
    13
    Trophy Points:
    18
    [root@xxx~]# dd if=/dev/zero of=iotest bs=64k count=16k conv=fdatasync
    16384+0 records in
    16384+0 records out
    1073741824 bytes (1.1 GB) copied, 24.4961 seconds, 43.8 MB/s

    OpenVZ server canada :D
     
  9. bantuemak

    bantuemak Banned!

    Messages:
    93
    Likes Received:
    7
    Trophy Points:
    0
    tes :D

    16384+0 records in
    16384+0 records out
    1073741824 bytes (1.1 GB) copied, 7.19191 s, 149 MB/s
     
  10. BennyKusman

    BennyKusman Hosting Guru DWH Guardian Web Hosting (Company)

    Messages:
    2,234
    Likes Received:
    239
    Trophy Points:
    63
    Dua2nya pake virtuozzo.
     
Loading...
Thread Status:
Not open for further replies.

Share This Page

Loading...