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Thread: Virtualbox performance Opensuse 12.1

  1. #11

    Default Re: Virtualbox performance Opensuse 12.1

    Sorry for this somewhat off-topic post, but I just had to check the network. I therefore installed iperf on both my test-server and the vm-host.

    With iperf I always get round about 1gbit speed, and that looks like a healthy network to me. No errors found in ifconfig nor ethtool statistics.

    I really can't explain why some of my scp-tests suddenly drop to about 10MB/sec

    ------------------------------------------------------------
    Client connecting to ft.wehay.com, TCP port 5001
    TCP window size: 16.0 KByte (default)
    ------------------------------------------------------------
    [ 3] local 217.75.116.20 port 33592 connected with 217.75.116.11 port 5001
    [ ID] Interval Transfer Bandwidth
    [ 3] 0.0-10.0 sec 1.10 GBytes 943 Mbits/sec
    ------------------------------------------------------------
    Client connecting to ft.wehay.com, TCP port 5001
    TCP window size: 16.0 KByte (default)
    ------------------------------------------------------------
    [ 3] local 217.75.116.20 port 33609 connected with 217.75.116.11 port 5001
    [ ID] Interval Transfer Bandwidth
    [ 3] 0.0-10.0 sec 1.10 GBytes 943 Mbits/sec
    ------------------------------------------------------------
    Client connecting to ft.wehay.com, TCP port 5001
    TCP window size: 16.0 KByte (default)
    ------------------------------------------------------------
    [ 3] local 217.75.116.20 port 33618 connected with 217.75.116.11 port 5001
    [ ID] Interval Transfer Bandwidth
    [ 3] 0.0-10.0 sec 1.10 GBytes 943 Mbits/sec
    ------------------------------------------------------------
    Client connecting to ft.wehay.com, TCP port 5001
    TCP window size: 16.0 KByte (default)
    ------------------------------------------------------------
    [ 3] local 217.75.116.20 port 33655 connected with 217.75.116.11 port 5001
    [ ID] Interval Transfer Bandwidth
    [ 3] 0.0-10.0 sec 1.10 GBytes 943 Mbits/sec
    ------------------------------------------------------------
    Client connecting to ft.wehay.com, TCP port 5001
    TCP window size: 16.0 KByte (default)
    ------------------------------------------------------------
    [ 3] local 217.75.116.20 port 33664 connected with 217.75.116.11 port 5001
    [ ID] Interval Transfer Bandwidth
    [ 3] 0.0-10.0 sec 1.10 GBytes 943 Mbits/sec
    ------------------------------------------------------------
    Client connecting to ft.wehay.com, TCP port 5001
    TCP window size: 16.0 KByte (default)
    ------------------------------------------------------------
    [ 3] local 217.75.116.20 port 52633 connected with 217.75.116.11 port 5001
    [ ID] Interval Transfer Bandwidth
    [ 3] 0.0-10.0 sec 1.10 GBytes 943 Mbits/sec

  2. #12

    Default Re: Virtualbox performance Opensuse 12.1

    If you run both, VirtualBox an kvm on your 32 cores server, you could certainly tell use which one performs better on this monster (it will be a great info in this subforum, I guess), and you would also find out if the issue you're having is related to VirtualBox (I doubt it though).
    I actually did install kvm some time ago sharing your though, to create a reference. Not read your links yet, but what I failed to find then was how-to administrative kvm in a headless environment, you know if there is some virtual console such a vnc or similar ? No X installed on the server.

  3. #13

    Default Re: Virtualbox performance Opensuse 12.1

    Quote Originally Posted by swejis View Post
    I actually did install kvm some time ago sharing your though, to create a reference. Not read your links yet, but what I failed to find then was how-to administrative kvm in a headless environment, you know if there is some virtual console such a vnc or similar ? No X installed on the server.
    Of course! It's called virt-manager. Look at the first link in my previous post. You connect to the server from anywhere and administrate the vms, start, shut down, open a vnc viewer (you can start virt-viewer from virt-manager). It's a bummer that vbox is not implemented in virt-manager, because libvirt (not any version) is able to manage VirtualBox vms as well. So you can administrate them from the libvirt shell (virsh).

  4. #14

    Default Re: Virtualbox performance Opensuse 12.1

    Quote Originally Posted by swejis View Post
    Sorry for this somewhat off-topic post, but I just had to check the network. I therefore installed iperf on both my test-server and the vm-host.

    With iperf I always get round about 1gbit speed, and that looks like a healthy network to me. No errors found in ifconfig nor ethtool statistics.

    I really can't explain why some of my scp-tests suddenly drop to about 10MB/sec
    Don't hesitate to open a new thread in the network forum to focus on this particular issue.

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