28/04/2017 09:47, Yao, Lei A: > From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Pablo de Lara > > > > L3fwd power app monitors the RX queues to see if the polling frequency > > should be adjusted (the busier the queue, the higher the frequency). > > The app uses several thresholds in the ring to determine the frequency, > > being 96 the highest one, when frequency should be highest. > > > > The problem is that the difference between this value and the ring size > > is not big enough (128 - 96 = 32 descriptors), which means that > > if the descriptors are not replenished quick enough, queue might > > not be busy, but the app would think that it is, because 96th descriptor > > is set. > > > > Therefore, by increasing this gap (increasing the RX ring size), > > we make sure that this false measurement will not happen. > > > > Fixes: b451aa39db31 ("examples/l3fwd-power: use DD bit rather than RX > > queue count") > > Cc: sta...@dpdk.org > > > > Signed-off-by: Pablo de Lara <pablo.de.lara.gua...@intel.com>
> I have test this patch based on 17.05-rc2 , issue is fixed. Host frequency > can > be changed according to the data throughput. > Tested-by: Lei Yao (lei.a....@intel.com) Applied, thanks
