On Fri, Sep 2, 2016 at 4:44 PM, Gabriel Ozaki <gabriel.ozaki@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