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Message-Id: <20200701230152.445957-1-danny@kdrag0n.dev>
Date: Wed, 1 Jul 2020 16:01:52 -0700
From: Danny Lin <danny@...ag0n.dev>
To: Jamal Hadi Salim <jhs@...atatu.com>,
Cong Wang <xiyou.wangcong@...il.com>,
Jiri Pirko <jiri@...nulli.us>
Cc: "David S. Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org, Danny Lin <danny@...ag0n.dev>
Subject: [PATCH] net: sched: Allow changing default qdisc to FQ-PIE
Similar to fq_codel and the other qdiscs that can set as default,
fq_pie is also suitable for general use without explicit configuration,
which makes it a valid choice for this.
This is useful in situations where a painless out-of-the-box solution
for reducing bufferbloat is desired but fq_codel is not necessarily the
best choice. For example, fq_pie can be better for DASH streaming, but
there could be more cases where it's the better choice of the two simple
AQMs available in the kernel.
Signed-off-by: Danny Lin <danny@...ag0n.dev>
---
net/sched/Kconfig | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/net/sched/Kconfig b/net/sched/Kconfig
index 84badf00647e..a3b37d88800e 100644
--- a/net/sched/Kconfig
+++ b/net/sched/Kconfig
@@ -468,6 +468,9 @@ choice
config DEFAULT_FQ_CODEL
bool "Fair Queue Controlled Delay" if NET_SCH_FQ_CODEL
+ config DEFAULT_FQ_PIE
+ bool "Flow Queue Proportional Integral controller Enhanced" if NET_SCH_FQ_PIE
+
config DEFAULT_SFQ
bool "Stochastic Fair Queue" if NET_SCH_SFQ
@@ -480,6 +483,7 @@ config DEFAULT_NET_SCH
default "pfifo_fast" if DEFAULT_PFIFO_FAST
default "fq" if DEFAULT_FQ
default "fq_codel" if DEFAULT_FQ_CODEL
+ default "fq_pie" if DEFAULT_FQ_PIE
default "sfq" if DEFAULT_SFQ
default "pfifo_fast"
endif
--
2.27.0
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