net: sched: pie: add derandomization mechanism
Random dropping of packets to achieve latency control may introduce outlier situations where packets are dropped too close to each other or too far from each other. This can cause the real drop percentage to temporarily deviate from the intended drop probability. In certain scenarios, such as a small number of simultaneous TCP flows, these deviations can cause significant deviations in link utilization and queuing latency. RFC 8033 suggests using a derandomization mechanism to avoid these deviations. Signed-off-by: NMohit P. Tahiliani <tahiliani@nitk.edu.in> Signed-off-by: NDhaval Khandla <dhavaljkhandla26@gmail.com> Signed-off-by: NHrishikesh Hiraskar <hrishihiraskar@gmail.com> Signed-off-by: NManish Kumar B <bmanish15597@gmail.com> Signed-off-by: NSachin D. Patil <sdp.sachin@gmail.com> Signed-off-by: NLeslie Monis <lesliemonis@gmail.com> Acked-by: NDave Taht <dave.taht@gmail.com> Acked-by: NJamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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