On Fri, Sep 2, 2016 at 4:44 PM, Gabriel Ozaki <gabriel.oz...@kemi.com.br> wrote:
> Hi > i am trying Ovirt 4.0 and i am getting some strange results when comparing > with Xenserver > > **The host machine* > Intel Core i5-4440 3.10GHz running at 3093 MHz > 8 Gb of RAM (1x8) > 500 Gb of Disk (seagate st500dm002 7200rpm) > CentOS 7 (netinstall for the most updated and stable packages) > > > > **How i am testing:* > I choose two benchmark tools, sysbench(epel-repo on centos) and > novabench(for windows guest, https://novabench.com ), then i make a clean > install of xenserver and create two guests(CentOS and Windows 7 SP1) > > > **The Guest specs* > 2 cores > 4 Gb of RAM > 60 Gb of disk (using virtIO in a NFS storage) > The nfs server is in the host? > Important note: only the testing guest are up on benchmark and i have > installed the drivers in guest > > > **The Sysbench disk test(creates 10Gb of data and do the bench):* > # sysbench --test=fileio --file-total-size=10G prepare > # sysbench --test=fileio --file-total-size=10G --file-test-mode=rndrw > --init-rng=on --max-time=300 --max-requests=0 run > > Host result: 2.9843Mb/sec > Ovirt result: 1.1561Mb/sec > Xenserver result: 2.9006Mb/sec > - Is this 2.9GiB/s or 2.9 MiB/s? - Are you testing using NFS in all versions? - What is the disk format? - How do you test io on the host? - What kind of nic is used? (1G, 10G?) > > **The novabench test:* > Ovirt result: 79Mb/s > Xenserver result: 101Mb/s > We need much more details to understand what do you test here. - For ovirt, can you share the vm command line, available in /var/log/libvirt/qemu/vmname.log? - For Xenserver - detailed description of the vm and the storage configuration? Nir
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