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[Xen-devel] Request for help, implementing a new network scheduler

  • To: xen-devel@xxxxxxxxxxxxx
  • From: Ronald PIna <pinaronald@xxxxxxxxx>
  • Date: Tue, 03 Feb 2015 01:42:09 +0100
  • Delivery-date: Tue, 03 Feb 2015 00:42:29 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xen.org>


I am working for the msc thesis to improve the performance on network for guest domains that uses real-time services like voip or video streaming servers , i have an idea to implement a network scheduler on network backend, the schedulers may be weighted fair queuing or weighted round robin, the idea is to schedule first the packet coming from real-time guest services, one of those schedulers could make the job and can prioritize the network traffic.

As far as i have studied from previous works explain that the outgoing network traffic in xen is scheduled in round robin manner inside the function net_tx_action(). Later on the last version of xen this function has changed xenvif_tx_action() and have changed his primarily structure. My primarily goal is to modify the round robin to more advanced scheduler which introduce priorities. The clear question is that where is located the function which schedule in round robin and if possible are there any concern about using another network scheduling method in netback ?

Thanks in advance

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