<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>You mention 012, but you do not mention what you're upgrading from. That can be helpful.</div><div><br></div><div>Dan<br><br>Sent from my iPhone (typos, autocorrect, and all)</div><div><br>On Nov 29, 2014, at 6:50 PM, Machine Man <<a href="mailto:gearboxes@outlook.com">gearboxes@outlook.com</a>> wrote:<br><br></div><blockquote type="cite"><div>
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</style>Hello,</div><div class="paddingtop paddingbottom">We experience slow network performance after upgrading for virtual machines.<br>Copying from a system (physical machine) to the VM the copy speed drop from 85MB/s on release 10 to between 9 and 14MB/s. Both systems I upgraded experience the exact same symptom and use the igb driver.</div><div class="paddingtop paddingbottom">Both have Supermicro mainboards; X9DRD-7LN4F-JBOD and X10SLL-F. Copy tests are done between windows 8.1 and a Windows 2012R2 VM.<br>Changing to virtio for nic as suggested in a previous email had no impact other than causing kvm to crash after copying ~400MB. </div><div class="paddingtop paddingbottom"> <br>Anyone else seeing this behavior?</div><div class="paddingtop paddingbottom"> </div><div class="paddingtop paddingbottom">I do see the X10SLL board has an e1000g nic also</div><div class="paddingtop paddingbottom">LINK MEDIA STATE SPEED DUPLEX DEVICE<br>e1000g0 Ethernet unknown 0 half e1000g0<br>igb0 Ethernet up 1000 full igb0<br></div><div class="paddingtop paddingbottom">I will switch over to that and test again. <br> <br>Thanks,</div> </div>
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