On Fri, Sep 02, 2016 at 05:13:40PM +0200, Pradeep Kiruvale wrote: > I am planning to implement throttling functionality for virtio-net > driver using the throttling APIs that exist inside qemu.
Hi Pradeep, the problem with implementing throttling for the network is that it's useless if you use the vhost_net kernel accelerator, because it bypasses QEMU entirely: https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Virtualization_Tuning_and_Optimization_Guide/sect-Virtualization_Tuning_Optimization_Guide-Networking-Virtio_and_vhostnet.html libvirt implements this using tc: https://libvirt.org/formatdomain.html#elementDomain http://luxik.cdi.cz/~devik/qos/htb/manual/userg.htm#ceiling Berto
