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| author | Philip Prindeville <philipp@redfish-solutions.com> | 2017-09-19 17:49:13 -0600 |
|---|---|---|
| committer | Hauke Mehrtens <hauke@hauke-m.de> | 2017-09-24 16:28:28 +0200 |
| commit | f138833d0cd79cf89ebc41dfc3707f52de921736 (patch) | |
| tree | d048d6a049bc2547a5bc5812bfcb62d5894bbf6a | |
| parent | 82739648c006c4fb458e97cadf6be6655cdd1f18 (diff) | |
| download | upstream-f138833d0cd79cf89ebc41dfc3707f52de921736.tar.gz upstream-f138833d0cd79cf89ebc41dfc3707f52de921736.tar.bz2 upstream-f138833d0cd79cf89ebc41dfc3707f52de921736.zip | |
kernel: don't scrimp on memory on big iron
x86_64 platforms typically don't lack memory, so don't needlessly
economize memory if fq_codel on capable platforms.
Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>
[Add a comment to the patch]
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
| -rw-r--r-- | target/linux/generic/hack-4.9/660-fq_codel_defaults.patch | 10 | ||||
| -rw-r--r-- | target/linux/generic/hack-4.9/661-use_fq_codel_by_default.patch | 4 |
2 files changed, 10 insertions, 4 deletions
diff --git a/target/linux/generic/hack-4.9/660-fq_codel_defaults.patch b/target/linux/generic/hack-4.9/660-fq_codel_defaults.patch index c91ea01b50..3e6473056c 100644 --- a/target/linux/generic/hack-4.9/660-fq_codel_defaults.patch +++ b/target/linux/generic/hack-4.9/660-fq_codel_defaults.patch @@ -3,6 +3,9 @@ From: Felix Fietkau <nbd@nbd.name> Date: Fri, 7 Jul 2017 17:21:53 +0200 Subject: hack: net: fq_codel: tune defaults for small devices +Assume that x86_64 devices always have a big memory and do not need this +optimization compared to devices with only 32 MB or 64 MB RAM. + Signed-off-by: Felix Fietkau <nbd@nbd.name> --- net/sched/sch_fq_codel.c | 2 +- @@ -10,12 +13,15 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name> --- a/net/sched/sch_fq_codel.c +++ b/net/sched/sch_fq_codel.c -@@ -479,7 +479,7 @@ static int fq_codel_init(struct Qdisc *s +@@ -479,7 +479,11 @@ static int fq_codel_init(struct Qdisc *s sch->limit = 10*1024; q->flows_cnt = 1024; -- q->memory_limit = 32 << 20; /* 32 MBytes */ ++#ifdef CONFIG_X86_64 + q->memory_limit = 32 << 20; /* 32 MBytes */ ++#else + q->memory_limit = 4 << 20; /* 4 MBytes */ ++#endif q->drop_batch_size = 64; q->quantum = psched_mtu(qdisc_dev(sch)); q->perturbation = prandom_u32(); diff --git a/target/linux/generic/hack-4.9/661-use_fq_codel_by_default.patch b/target/linux/generic/hack-4.9/661-use_fq_codel_by_default.patch index b0af139f83..c57b4439b4 100644 --- a/target/linux/generic/hack-4.9/661-use_fq_codel_by_default.patch +++ b/target/linux/generic/hack-4.9/661-use_fq_codel_by_default.patch @@ -55,7 +55,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name> register_qdisc(&pfifo_head_drop_qdisc_ops); --- a/net/sched/sch_fq_codel.c +++ b/net/sched/sch_fq_codel.c -@@ -705,7 +705,7 @@ static const struct Qdisc_class_ops fq_c +@@ -709,7 +709,7 @@ static const struct Qdisc_class_ops fq_c .walk = fq_codel_walk, }; @@ -64,7 +64,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name> .cl_ops = &fq_codel_class_ops, .id = "fq_codel", .priv_size = sizeof(struct fq_codel_sched_data), -@@ -720,6 +720,7 @@ static struct Qdisc_ops fq_codel_qdisc_o +@@ -724,6 +724,7 @@ static struct Qdisc_ops fq_codel_qdisc_o .dump_stats = fq_codel_dump_stats, .owner = THIS_MODULE, }; |