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>
diff --git a/net/sched/Kconfig b/net/sched/Kconfig
index e318f45..8c19b6e 100644
--- a/net/sched/Kconfig
+++ b/net/sched/Kconfig
@@ -217,6 +217,17 @@
If unsure, say N.
+config NET_SCH_CHOKE
+ tristate "CHOose and Keep responsive flow scheduler (CHOKE)"
+ help
+ Say Y here if you want to use the CHOKe packet scheduler (CHOose
+ and Keep for responsive flows, CHOose and Kill for unresponsive
+ flows). This is a variation of RED which trys to penalize flows
+ that monopolize the queue.
+
+ To compile this code as a module, choose M here: the
+ module will be called sch_choke.
+
config NET_SCH_INGRESS
tristate "Ingress Qdisc"
depends on NET_CLS_ACT