<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Fri, Sep 2, 2016 at 5:33 PM, Gabriel Ozaki <span dir="ltr"><<a href="mailto:gabriel.ozaki@kemi.com.br" target="_blank">gabriel.ozaki@kemi.com.br</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div><div><div><div>Hi Nir, thanks for the answer<br><br></div><span class=""><b>The nfs server is in the host?<br></b></span></div>Yes, i choose NFS to use as storage on ovirt host<span class=""><br><br><b>- Is this 2.9GiB/s or 2.9 MiB/s?</b><br></span></div>Is MiB/s, i put the full test on paste bin<br>centos guest on ovirt:<br><a href="http://pastebin.com/d48qfvuf" target="_blank">http://pastebin.com/d48qfvuf</a><br><br></div>centos guest on xenserver:<br><a href="http://pastebin.com/gqN3du29" target="_blank">http://pastebin.com/gqN3du29</a><br><br></div>how the test works:<br><a href="https://www.howtoforge.com/how-to-benchmark-your-system-cpu-file-io-mysql-with-sysbench" target="_blank">https://www.howtoforge.com/<wbr>how-to-benchmark-your-system-<wbr>cpu-file-io-mysql-with-<wbr>sysbench</a><span class=""><br><br><b>- Are you testing using NFS in all versions?</b><br></span><div><div><div><div>i am using the v3 version<span class=""><br><br><b>- What is the disk format?</b><br></span></div><div>partion size format<br></div><div>/ 20Gb xfs<br></div><div>swap 2 Gb xfs<br></div><div>/dados rest of disk xfs (note, this is the partition where i save the ISOs,exports and VM disks)<span class=""><br><br><b>- How do you test io on the host?<br></b></span></div><div>I do a clean install of centos and do the test before i install the ovirt<br>the test:<br><a href="http://pastebin.com/7RKU7778" target="_blank">http://pastebin.com/7RKU7778</a><br></div><div><span class=""><br><div><b>- What kind of nic is used? (1G, 10G?)</b></div></span><span><div>Is only a 100mbps :(<br></div></span></div></div></div></div></div></blockquote><div><br></div><div>100Mbps will not get you more than several MB/s. 11MB/s on a very bright day... </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div><div><div><span><div><br></div><span class=""><div><b>We need much more details to understand what do you test here.</b></div></span></span>I have problems to upload the benchmark test on orvirt to novabench site, so here is the screenshot(i make a mistake on the last email i get the wrong value), is 86 Mb/s:<br></div></div></div></div></div></blockquote><div><br></div><div>Which is not possible on the wire. Unless it's VM to VM? And the storage is local, which means it's the bandwidth of the physical disk itself?</div><div>Y.</div><div><br></div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div><div><div><img src="cid:ii_isluoxyd0_156eb485435838b4" height="532" width="498"><br><br></div><div>And the novabench on xenserver:<br><a href="https://novabench.com/compare.php?id=ba8dd628e4042dfc1f3d39670b164ab11061671" target="_blank">https://novabench.com/compare.<wbr>php?id=<wbr>ba8dd628e4042dfc1f3d39670b164a<wbr>b11061671</a><span class=""><br><br><div><b>- For Xenserver - detailed description of the vm and the storage configuration?</b></div></span><div><div>The host is the same(i install xenserver, do the tests before i install centos), the VM i use the same configuration of ovirt, 2 cores, 4 Gb of ram<img src="https://ssl.gstatic.com/ui/v1/icons/mail/images/cleardot.gif"> and 60 Gb disk(in the default xenserver SR)<span class=""><br><br><b>- For ovirt, can you share the vm command line, available in /var/log/libvirt/qemu/vmname.</b><b>l<wbr>og?</b><br></span>2016-09-01 12:50:28.268+0000: starting up libvirt version: 1.2.17, package: 13.el7_2.5 (CentOS BuildSystem <<a href="http://bugs.centos.org" target="_blank">http://bugs.centos.org</a>>, 2016-06-23-14:23:27, <a href="http://worker1.bsys.centos.org" target="_blank">worker1.bsys.centos.org</a>), qemu version: 2.3.0 (qemu-kvm-ev-2.3.0-31.el7.16.<wbr>1)<br>LC_ALL=C PATH=/usr/local/sbin:/usr/<wbr>local/bin:/usr/sbin:/usr/bin QEMU_AUDIO_DRV=none /usr/libexec/qemu-kvm -name vmcentos -S -machine pc-i440fx-rhel7.2.0,accel=kvm,<wbr>usb=off -cpu Haswell-noTSX -m size=4194304k,slots=16,maxmem=<wbr>4294967296k -realtime mlock=off -smp 2,maxcpus=16,sockets=16,cores=<wbr>1,threads=1 -numa node,nodeid=0,cpus=0-1,mem=<wbr>4096 -uuid 21872e4b-7699-4502-b1ef-<wbr>2c058eff1c3c -smbios type=1,manufacturer=oVirt,<wbr>product=oVirt Node,version=7-2.1511.el7.<wbr>centos.2.10,serial=03AA02FC-<wbr>0414-05F8-D906-710700080009,<wbr>uuid=21872e4b-7699-4502-b1ef-<wbr>2c058eff1c3c -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/<wbr>var/lib/libvirt/qemu/domain-<wbr>vmcentos/monitor.sock,server,<wbr>nowait -mon chardev=charmonitor,id=<wbr>monitor,mode=control -rtc base=2016-09-01T09:50:28,<wbr>driftfix=slew -global kvm-pit.lost_tick_policy=<wbr>discard -no-hpet -no-shutdown -boot strict=on -device piix3-usb-uhci,id=usb,bus=pci.<wbr>0,addr=0x1.0x2 -device virtio-scsi-pci,id=scsi0,bus=<wbr>pci.0,addr=0x3 -device virtio-serial-pci,id=virtio-<wbr>serial0,max_ports=16,bus=pci.<wbr>0,addr=0x4 -drive file=/rhev/data-center/mnt/<wbr>ovirt.kemi.intranet:_dados_<wbr>iso/52ee9f87-9d38-48ec-8003-<wbr>193262f81994/images/11111111-<wbr>1111-1111-1111-111111111111/<wbr>CentOS-7-x86_64-NetInstall-<wbr>1511.iso,if=none,id=drive-<wbr>ide0-1-0,readonly=on,format=<wbr>raw -device ide-cd,bus=ide.1,unit=0,drive=<wbr>drive-ide0-1-0,id=ide0-1-0,<wbr>bootindex=2 -drive file=/rhev/data-center/<wbr>00000001-0001-0001-0001-<wbr>0000000002bb/4ccdd1f3-ee79-<wbr>4425-b6ed-5774643003fa/images/<wbr>2ecfcf18-ae84-4e73-922f-<wbr>28b9cda9e6e1/800f05bf-23f7-<wbr>4c9d-8c1d-b2503592875f,if=<wbr>none,id=drive-virtio-disk0,<wbr>format=raw,serial=2ecfcf18-<wbr>ae84-4e73-922f-28b9cda9e6e1,<wbr>cache=none,werror=stop,rerror=<wbr>stop,aio=threads -device virtio-blk-pci,scsi=off,bus=<wbr>pci.0,addr=0x6,drive=drive-<wbr>virtio-disk0,id=virtio-disk0,<wbr>bootindex=1 -chardev socket,id=charchannel0,path=/<wbr>var/lib/libvirt/qemu/channels/<wbr>21872e4b-7699-4502-b1ef-<wbr>2c058eff1c3c.com.redhat.rhevm.<wbr>vdsm,server,nowait -device virtserialport,bus=virtio-<wbr>serial0.0,nr=1,chardev=<wbr>charchannel0,id=channel0,name=<wbr>com.redhat.rhevm.vdsm -chardev socket,id=charchannel1,path=/<wbr>var/lib/libvirt/qemu/channels/<wbr>21872e4b-7699-4502-b1ef-<wbr>2c058eff1c3c.org.qemu.guest_<wbr>agent.0,server,nowait -device virtserialport,bus=virtio-<wbr>serial0.0,nr=2,chardev=<wbr>charchannel1,id=channel1,name=<wbr>org.qemu.guest_agent.0 -device usb-tablet,id=input0 -vnc <a href="http://192.168.0.189:0" target="_blank">192.168.0.189:0</a>,password -k pt-br -device VGA,id=video0,vgamem_mb=16,<wbr>bus=pci.0,addr=0x2 -device virtio-balloon-pci,id=<wbr>balloon0,bus=pci.0,addr=0x5 -msg timestamp=on<br>2016-09-01T12:50:28.307173Z qemu-kvm: warning: CPU(s) not present in any NUMA nodes: 2 3 4 5 6 7 8 9 10 11 12 13 14 15<br>2016-09-01T12:50:28.307371Z qemu-kvm: warning: All CPU(s) up to maxcpus should be described in NUMA config<br>qemu: terminating on signal 15 from pid 1<br>2016-09-01 19:13:47.899+0000: shutting down<br><br></div><div><br></div><div>Thanks<br></div><div><br></div></div></div><div><br></div></div></div></div></div><div class="gmail_extra"><br clear="all"><div><div data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><img src="https://docs.google.com/a/kemi.com.br/uc?id=0BxC77GE-UKwcSzB4TXNhcTNBSzQ&export=download"><br><br><div><br></div></div></div></div></div></div><div><div class="h5">
<br><div class="gmail_quote">2016-09-02 11:05 GMT-03:00 Nir Soffer <span dir="ltr"><<a href="mailto:nsoffer@redhat.com" target="_blank">nsoffer@redhat.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div class="gmail_extra"><div class="gmail_quote"><span>On Fri, Sep 2, 2016 at 4:44 PM, Gabriel Ozaki <span dir="ltr"><<a href="mailto:gabriel.ozaki@kemi.com.br" target="_blank">gabriel.ozaki@kemi.com.br</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div><div>Hi<br></div>i am trying Ovirt 4.0 and i am getting some strange results when comparing with Xenserver<br><br></div><div><b>*The host machine</b><br> Intel Core i5-4440 3.10GHz running at 3093 MHz<br></div><div>8 Gb of RAM (1x8)<br></div><div>500 Gb of Disk (seagate st500dm002 7200rpm)<br></div><div>CentOS 7 (netinstall for the most updated and stable packages)<br><br></div><div><br></div><div><b>*How i am testing:<br></b></div><div>I choose two benchmark tools, sysbench(epel-repo on centos) and novabench(for windows guest, <a href="https://novabench.com" target="_blank">https://novabench.com</a> ), then i make a clean install of xenserver and create two guests(CentOS and Windows 7 SP1)<br><br></div><div><b>*The Guest specs<br></b></div><div>2 cores<br></div><div>4 Gb of RAM<br></div><div>60 Gb of disk (using virtIO in a NFS storage)<br></div></div></blockquote><div><br></div></span><div>The nfs server is in the host?</div><span><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div></div><div>Important note: only the testing guest are up on benchmark and i have installed the drivers in guest<br><br></div><div><b>*The Sysbench disk test(creates 10Gb of data and do the bench):<br></b></div><div><b></b></div><div># sysbench --test=fileio --file-total-size=10G prepare<br># sysbench --test=fileio --file-total-size=10G --file-test-mode=rndrw --init-rng=on --max-time=300 --max-requests=0 run<br><br></div><div>Host result: 2.9843Mb/sec<br></div><div>Ovirt result: 1.1561Mb/sec<br></div><div>Xenserver result: 2.9006Mb/sec<br></div></div></blockquote><div><br></div></span><div>- Is this 2.9GiB/s or 2.9 MiB/s?</div><div>- Are you testing using NFS in all versions?</div><div>- What is the disk format?</div><div>- How do you test io on the host?</div><div>- What kind of nic is used? (1G, 10G?)</div><span><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div><br></div><div><b>*The novabench test:<br></b><div>Ovirt result: 79Mb/s<br></div>Xenserver result: 101Mb/s<br></div></div></blockquote><div><br></div></span><div>We need much more details to understand what do you test here.</div><div><br></div><div>- For ovirt, can you share the vm command line, available in /var/log/libvirt/qemu/vmname.l<wbr>og?</div><div>- For Xenserver - detailed description of the vm and the storage configuration?</div><span><font color="#888888"><div><br></div><div>Nir</div></font></span></div></div></div>
</blockquote></div><br></div></div></div>
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