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XenServer 8.2 TCP Offloading


Klaus Winnerlein

Question

Hello,

 

in XenServer 7.1 and former releases we always set TCP offlaoding on pif's and vif's.

 

For example for every vif we set

        xe vif-param-set uuid=$uuid other-config:ethtool-gso="off"
        xe vif-param-set uuid=$uuid other-config:ethtool-ufo="off"
        xe vif-param-set uuid=$uuid other-config:ethtool-tso="off"
        xe vif-param-set uuid=$uuid other-config:ethtool-sg="off"
        xe vif-param-set uuid=$uuid other-config:ethtool-tx="off"
        xe vif-param-set uuid=$uuid other-config:ethtool-rx="off"

And for every pif we set

       xe pif-param-set uuid=$uuid other-config:ethtool-gso="off"
        xe pif-param-set uuid=$uuid other-config:ethtool-ufo="off"
        xe pif-param-set uuid=$uuid other-config:ethtool-tso="off"
        xe pif-param-set uuid=$uuid other-config:ethtool-sg="off"
        xe pif-param-set uuid=$uuid other-config:ethtool-tx="off"
        xe pif-param-set uuid=$uuid other-config:ethtool-rx="off"


With this settings we had an observably performance effect on the VMs.


Now my question:

Is it still recommended for XenServer 8.2 to set TCP offloading on vif's and pif's ?

 

Thanks for any help,

Klaus
 

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