From 755fdfffa0061b35651cd85a3a5e902b336ec120 Mon Sep 17 00:00:00 2001
From: zzywysm <zzy@zzywysm.com>
Date: Thu, 22 Feb 2024 13:03:06 -0500
Subject: [PATCH] README: mention fq_codel

In 2014, systemd started choosing fq_codel as the default_qdisc in order to fight internet bufferbloat.

https://github.com/systemd/systemd/commit/e6c253e363dee77ef7e5c5f44c4ca55cded3fd47
https://github.com/systemd/systemd/commit/fa98c99ea7f7c5bec3962fa52f4d3496a9777024

While the subsequent change made this change no longer trigger warnings if fq_codel wasn't present, it is still recommended to have this enabled.  Add the necessary kernel configuration to the documentation.
---
 README | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README b/README
index 3b62e369fa8..e41ab1ab7d3 100644
--- a/README
+++ b/README
@@ -98,6 +98,8 @@ REQUIREMENTS:
           CONFIG_SECCOMP_FILTER (required for seccomp support)
           CONFIG_KCMP (for the kcmp() syscall, used to be under
                        CONFIG_CHECKPOINT_RESTORE before ~5.12)
+          CONFIG_NET_SCHED
+          CONFIG_NET_SCH_FQ_CODEL
 
         Required for CPUShares= in resource control unit settings:
           CONFIG_CGROUP_SCHED
-- 
2.47.3