From 747029a566e5d637ef4972afd2cb7202f7b7ca7c Mon Sep 17 00:00:00 2001 From: Fabian Frederick Date: Thu, 6 Nov 2014 19:46:50 +0100 Subject: [PATCH] ipv4: add kernel parameter tcpmhash_entries This patch also adds a reference to ip-sysctl.txt where TCP metrics setup is described Signed-off-by: Fabian Frederick Signed-off-by: Jonathan Corbet --- Documentation/kernel-parameters.txt | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 4c81a860cc2b..e8066db54d3d 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -3412,6 +3412,13 @@ bytes respectively. Such letter suffixes can also be entirely omitted. neutralize any effect of /proc/sys/kernel/sysrq. Useful for debugging. + tcpmhash_entries= [KNL,NET] + Set the number of tcp_metrics_hash slots. + Default value is 8192 or 16384 depending on total + ram pages. This is used to specify the TCP metrics + cache size. See Documentation/networking/ip-sysctl.txt + "tcp_no_metrics_save" section for more details. + tdfx= [HW,DRM] test_suspend= [SUSPEND][,N]