search for: skb_orphan_frags_rx

.... >>> Sender B sends VHOST_GOODCOPY_LEN, which is enough >>> to trigger zcopy_used in vhost net. >>> >>> A local receive process on the host receives both flows. To avoid >>> a deep copy when looping the packet onto the receive path, >>> changed skb_orphan_frags_rx to always return false (gross hack). >>> >>> The flow with the larger packets is redirected through netem on ifb0: >>> >>> modprobe ifb >>> ip link set dev ifb0 up >>> tc qdisc add dev ifb0 root netem limit $LIMIT rate 1MBit >>...

.... >>> Sender B sends VHOST_GOODCOPY_LEN, which is enough >>> to trigger zcopy_used in vhost net. >>> >>> A local receive process on the host receives both flows. To avoid >>> a deep copy when looping the packet onto the receive path, >>> changed skb_orphan_frags_rx to always return false (gross hack). >>> >>> The flow with the larger packets is redirected through netem on ifb0: >>> >>> modprobe ifb >>> ip link set dev ifb0 up >>> tc qdisc add dev ifb0 root netem limit $LIMIT rate 1MBit >>...

...der A sends 1B datagrams. >> Sender B sends VHOST_GOODCOPY_LEN, which is enough >> to trigger zcopy_used in vhost net. >> >> A local receive process on the host receives both flows. To avoid >> a deep copy when looping the packet onto the receive path, >> changed skb_orphan_frags_rx to always return false (gross hack). >> >> The flow with the larger packets is redirected through netem on ifb0: >> >> modprobe ifb >> ip link set dev ifb0 up >> tc qdisc add dev ifb0 root netem limit $LIMIT rate 1MBit >> >> tc qdisc add d...

...der A sends 1B datagrams. >> Sender B sends VHOST_GOODCOPY_LEN, which is enough >> to trigger zcopy_used in vhost net. >> >> A local receive process on the host receives both flows. To avoid >> a deep copy when looping the packet onto the receive path, >> changed skb_orphan_frags_rx to always return false (gross hack). >> >> The flow with the larger packets is redirected through netem on ifb0: >> >> modprobe ifb >> ip link set dev ifb0 up >> tc qdisc add dev ifb0 root netem limit $LIMIT rate 1MBit >> >> tc qdisc add d...

.... >>> Sender B sends VHOST_GOODCOPY_LEN, which is enough >>> to trigger zcopy_used in vhost net. >>> >>> A local receive process on the host receives both flows. To avoid >>> a deep copy when looping the packet onto the receive path, >>> changed skb_orphan_frags_rx to always return false (gross hack). >>> >>> The flow with the larger packets is redirected through netem on ifb0: >>> >>> modprobe ifb >>> ip link set dev ifb0 up >>> tc qdisc add dev ifb0 root netem limit $LIMIT rate 1MBit >>&gt...