<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Mar 5, 2018 at 1:25 PM, Thomas Fecke <span dir="ltr"><<a href="mailto:thomas.fecke@eset.de" target="_blank">thomas.fecke@eset.de</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Hey Yaniv,<u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#1f497d">thanks in advance<u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#1f497d">ethtool eno2 | grep Speed<u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#1f497d">always brings up 10.000. So i tought there is maybe a config File in ovirt that change it or something.<u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Or will it use the OS information direct?</span></p></div></div></blockquote><div><br></div><div>Correct. I assume you have not put any capping on the performance.</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div lang="EN-US" link="blue" vlink="purple"><div class="m_-3934089428545777140WordSection1"><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#1f497d">
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Im not sure why the VM´s are getting slow. But when I run an Monitor tool to check the Bandwith it never excet 1000. Maybe he just
don’t need more for the Copy Job</span></p></div></div></blockquote><div><br></div><div>We'll need more details on the VM configuration. I assume you are using raw (and not qcow2), using virtio or virtio-SCSI, enabled IO threads, etc.</div><div>What are you using the measure the performance?</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div lang="EN-US" link="blue" vlink="purple"><div class="m_-3934089428545777140WordSection1"><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#1f497d"><u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#1f497d">I have no explanation
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#1f497d">fact ist – when I deploy the same Template about 10-15 Times they are getting rly slow.</span></p></div></div></blockquote><div><br></div><div>We'll need to understand how you deploy them.</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div lang="EN-US" link="blue" vlink="purple"><div class="m_-3934089428545777140WordSection1"><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#1f497d"><u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#1f497d">The RAM and CPU is morgen then 70% Free.
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Ill tried to Stress the Storage a bit.<u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Opened nload and created some VM´s, created Templates, created Pools and and and<u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#1f497d">An I was wrong:<u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Max: 8.09 GBit/s</span></p></div></div></blockquote><div><br></div><div>That's unlikely. What storage is providing you with 8GB/s?</div><div>That needs to be a very very very high end storage....</div><div>Y.</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div lang="EN-US" link="blue" vlink="purple"><div class="m_-3934089428545777140WordSection1"><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#1f497d"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#1f497d">I can life with that. The Performance issues sees to be Gone for now. Maybe it was just the 4.2 Upgrade. I have no idea<u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#1f497d">But everything seems to work fine. Sorry for wasting your tim e<u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri",sans-serif;color:#1f497d"><u></u> <u></u></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Yaniv Kaul [mailto:<a href="mailto:ykaul@redhat.com" target="_blank">ykaul@redhat.com</a>]
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<b>Sent:</b> Montag, 5. März 2018 11:08<br>
<b>To:</b> Thomas Fecke <<a href="mailto:thomas.fecke@eset.de" target="_blank">thomas.fecke@eset.de</a>><br>
<b>Cc:</b> <a href="mailto:users@ovirt.org" target="_blank">users@ovirt.org</a><br>
<b>Subject:</b> Re: [ovirt-users] Any Kind of Storage IO Limitation?<u></u><u></u></span></p><div><div class="h5">
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<p class="MsoNormal">On Mon, Mar 5, 2018 at 8:24 AM, Thomas Fecke <<a href="mailto:thomas.fecke@eset.de" target="_blank">thomas.fecke@eset.de</a>> wrote:<u></u><u></u></p>
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<p class="MsoNormal">Hey Guys,<u></u><u></u></p>
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<p class="MsoNormal">I got a kind of strange Question:
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<p class="MsoNormal">We got some Hypervisors connected to an x86 Storage ( NFS )<u></u><u></u></p>
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<p class="MsoNormal">The Machines are connected via 10 Gbit with that Storage. When I try to rsync some Files we reach almost the Maximum Bandwidth.<u></u><u></u></p>
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<p class="MsoNormal">But, when I copy some VM´s, Templates or do something Stroage related in Ovirt I just can reach 1000 M/bit.
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<p class="MsoNormal">Is there any kind of “Config Limitation”?<u></u><u></u></p>
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<p class="MsoNormal">My biggest Problem:<u></u><u></u></p>
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<p class="MsoNormal">We work a lot with Templates. When I deploy 10 VM´s based on one Template the VM´s are getting very slow and the Storage seems to be the Problem<u></u><u></u></p>
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<p class="MsoNormal">Please verify all your hosts, and especially the SPM, are connected with 10g (and have negotiated with 10g and not 1g, etc.)<u></u><u></u></p>
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<p class="MsoNormal">Y.<u></u><u></u></p>
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<p class="MsoNormal">Thanks a lot
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