target/linux/generic/hack-4.14/660-fq_codel_defaults.patch

   1 From a6ccb238939b25851474a279b20367fd24a0e816 Mon Sep 17 00:00:00 2001
   2 From: Felix Fietkau <nbd@nbd.name>
   3 Date: Fri, 7 Jul 2017 17:21:53 +0200
   4 Subject:  hack: net: fq_codel: tune defaults for small devices
   5
   6 Assume that x86_64 devices always have a big memory and do not need this
   7 optimization compared to devices with only 32 MB or 64 MB RAM.
   8
   9 Signed-off-by: Felix Fietkau <nbd@nbd.name>
  10 ---
  11  net/sched/sch_fq_codel.c | 2 +-
  12  1 file changed, 1 insertion(+), 1 deletion(-)
  13
  14 --- a/net/sched/sch_fq_codel.c
  15 +++ b/net/sched/sch_fq_codel.c
  16 @@ -465,7 +465,11 @@ static int fq_codel_init(struct Qdisc *s
  17
  18         sch->limit = 10*1024;
  19         q->flows_cnt = 1024;
  20 +#ifdef CONFIG_X86_64
  21         q->memory_limit = 32 << 20; /* 32 MBytes */
  22 +#else
  23 +       q->memory_limit = 4 << 20; /* 4 MBytes */
  24 +#endif
  25         q->drop_batch_size = 64;
  26         q->quantum = psched_mtu(qdisc_dev(sch));
  27         INIT_LIST_HEAD(&q->new_flows);