On Fri, May 22, 2015 at 10:26:48AM +, Joao Martins wrote:
[...]
> >>return IRQ_HANDLED;
> >> }
> >> @@ -168,8 +169,12 @@ static int xenvif_start_xmit(struct sk_buff *skb,
> >> struct net_device *dev)
> >>cb = XENVIF_RX_CB(skb);
> >>cb->expires = jiffies + vif->drain_timeout;
> >>
On 19 May 2015, at 17:35, Wei Liu wrote:
> On Tue, May 12, 2015 at 07:18:30PM +0200, Joao Martins wrote:
>> By introducing persistent grants we speed up the RX thread with the
>> decreased copy cost, that leads to a throughput decrease of 20%.
>> It is observed that the rx_queue stays mostly at
On Tue, May 12, 2015 at 07:18:30PM +0200, Joao Martins wrote:
> By introducing persistent grants we speed up the RX thread with the
> decreased copy cost, that leads to a throughput decrease of 20%.
> It is observed that the rx_queue stays mostly at 10% of its capacity,
> as opposed to full capacit
By introducing persistent grants we speed up the RX thread with the
decreased copy cost, that leads to a throughput decrease of 20%.
It is observed that the rx_queue stays mostly at 10% of its capacity,
as opposed to full capacity when using grant copy. And a finer measure
with lock_stat (below wit
