On 07/03/2013 11:52 PM, Brown, Chris (GE Healthcare) wrote:
> Yes, jumbo frames were enabled and the following networking tuning was applied ;-)
> 
> net.ipv4.tcp_wmem = 4096 65536 16777216
> net.ipv4.tcp_rmem = 4096 87380 16777216
> net.core.wmem_max = 16777216
> net.core.rmem_max = 16777216
> net.core.wmem_default = 65536
> net.core.rmem_default = 87380
> net.core.netdev_max_backlog = 30000
Thanks for info!

Adrian


> 
> - Chris
> ________________________________________
> From: Adrian Sevcenco [[log in to unmask]]
> Sent: Wednesday, July 03, 2013 2:10 PM
> To: [log in to unmask]
> Cc: Brown, Chris (GE Healthcare)
> Subject: Re: KVM + NFS Performance (ZFS/BTRFS/EXT4)
> 
> On 07/03/2013 09:23 PM, Brown, Chris (GE Healthcare) wrote:
>> -- Test Config #8 --
>> Max Read: 652.4
>> Max Write: 670.4
> are you sure you used 9k frames in your network configuration?
> I am very interested in your results and work (many thanks btw for
> sharing) and i heard about better results with jumbo frames..
> 
> Thanks!
> Adrian
>