QFQ+ inherits from QFQ a design choice that may cause a high packet
delay/jitter and a severe short-term unfairness. As QFQ, QFQ+ uses a
special quantity, the system virtual time, to track the service
provided by the ideal system it approximates. When a packet is
dequeued, this quantity must be inc
QFQ+ inherits from QFQ a design choice that may cause a high packet
delay/jitter and a severe short-term unfairness. As QFQ, QFQ+ uses a
special quantity, the system virtual time, to track the service
provided by the ideal system it approximates. When a packet is
dequeued, this quantity must be inc
On Mon, 2013-07-15 at 20:01 +0200, Paolo Valente wrote:
> QFQ+ inherits from QFQ a design choice that may cause a high packet
> delay/jitter and a severe short-term unfairness.
[]
> diff --git a/net/sched/sch_qfq.c b/net/sched/sch_qfq.c
[]
> @@ -189,6 +188,7 @@ struct qfq_sched {
> struct qfq
Il 15/07/2013 20:12, Joe Perches ha scritto:
On Mon, 2013-07-15 at 20:01 +0200, Paolo Valente wrote:
QFQ+ inherits from QFQ a design choice that may cause a high packet
delay/jitter and a severe short-term unfairness.
[]
diff --git a/net/sched/sch_qfq.c b/net/sched/sch_qfq.c
[]
@@ -189,6 +18
From: Paolo Valente
Date: Tue, 16 Jul 2013 08:52:30 +0200
...
> This patch addresses this issue by just using the above
> 'instantaneous' value of the weight sum, instead of the maximum
> possible value, when updating the system virtual time. After the
> instantaneous weight sum is decreased, Q
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