<html> <head> <style></style></head> <body class='hmmessage'><div dir='ltr'>Experience slow network performance after upgrading.<BR>Copying from another windows system (physical machine) it drops form the 85MB/s on R10 to between 9 and 14MB/s. Two systems experience the exact same symptom. Both make use of igb driver. <BR>Copy tests are done between windows 8.1 and Windows 2012R2 VM.<BR>Changing to virtio for nic has no impact other than causing kvm to crash after copying ~400MB. <BR> <BR>Any ideas? <BR> <BR>Thanks,<BR> </div></body> </html>