From 1059ffb8043f0edc0eed90a209b347b0c2f48865 Mon Sep 17 00:00:00 2001 From: Michael Kerrisk Date: Fri, 7 Feb 2020 16:11:06 +0100 Subject: [PATCH] tcp.7: tcp_low_latency is ignored since Linux 4.14 Signed-off-by: Michael Kerrisk --- man7/tcp.7 | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/man7/tcp.7 b/man7/tcp.7 index f4a3d61cc..251a524bb 100644 --- a/man7/tcp.7 +++ b/man7/tcp.7 @@ -559,13 +559,17 @@ application timeouts may be much shorter. .\" .\" The following is from 2.6.12: Documentation/networking/ip-sysctl.txt .TP -.IR tcp_low_latency " (Boolean; default: disabled; since Linux 2.4.21/2.6)" +.IR tcp_low_latency " (Boolean; default: disabled; since Linux 2.4.21/2.6; \ +obsolete since Linux 4.14)" .\" Since 2.4.21/2.5.60 If enabled, the TCP stack makes decisions that prefer lower latency as opposed to higher throughput. It this option is disabled, then higher throughput is preferred. An example of an application where this default should be changed would be a Beowulf compute cluster. +Since Linux 4.14, +.\" commit b6690b14386698ce2c19309abad3f17656bdfaea +this file still exists, but its value is ignored. .TP .IR tcp_max_orphans " (integer; default: see below; since Linux 2.4)" .\" Since 2.3.41