[OmniOS-discuss] Release 12 - KVM poor network performance

[Machine Man]

>From 010.
________________________________
From: Dan McDonald<mailto:danmcd at omniti.com>
Sent: ‎11/‎29/‎2014 19:57
To: Machine Man<mailto:gearboxes at outlook.com>
Cc: omnios-discuss at lists.omniti.com<mailto:omnios-discuss at lists.omniti.com>
Subject: Re: [OmniOS-discuss] Release 12 - KVM poor network performance

You mention 012, but you do not mention what you're upgrading from.  That can be helpful.

Dan

Sent from my iPhone (typos, autocorrect, and all)

> On Nov 29, 2014, at 6:50 PM, Machine Man <gearboxes at outlook.com> wrote:
>
> Hello,
> We experience slow network performance after upgrading for virtual machines.
> 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.
> Both have Supermicro mainboards;  X9DRD-7LN4F-JBOD and X10SLL-F. Copy tests are done between windows 8.1 and a Windows 2012R2 VM.
> Changing to virtio for nic as suggested in a previous email had no impact other than causing kvm to crash after copying ~400MB.
>
> Anyone else seeing this behavior?
>
> I do see the X10SLL board has an e1000g nic also
> LINK         MEDIA                STATE      SPEED  DUPLEX    DEVICE
> e1000g0      Ethernet             unknown    0      half      e1000g0
> igb0         Ethernet             up         1000   full      igb0
> I will switch over to that and test again.
>
> Thanks,
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