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authorstephen hemminger <shemminger@vyatta.com>2011-02-02 15:21:10 +0000
committerDavid S. Miller <davem@davemloft.net>2011-02-02 20:52:42 -0800
commit45e144339ac59971eb44be32e1282760aaabe861 (patch)
treeb9d93acb2c1bb505d3b6facc426d307c59dc63a4 /net/sched/sch_fifo.c
parent119b3d386985fcd477b3131190c041516a73f83a (diff)
sched: CHOKe flow scheduler
CHOKe ("CHOose and Kill" or "CHOose and Keep") is an alternative packet scheduler based on the Random Exponential Drop (RED) algorithm. The core idea is: For every packet arrival: Calculate Qave if (Qave < minth) Queue the new packet else Select randomly a packet from the queue if (both packets from same flow) then Drop both the packets else if (Qave > maxth) Drop packet else Admit packet with proability p (same as RED) See also: Rong Pan, Balaji Prabhakar, Konstantinos Psounis, "CHOKe: a stateless active queue management scheme for approximating fair bandwidth allocation", Proceeding of INFOCOM'2000, March 2000. Help from: Eric Dumazet <eric.dumazet@gmail.com> Patrick McHardy <kaber@trash.net> Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/sch_fifo.c')
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