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authorFabian Frederick <fabf@skynet.be>2014-11-06 19:46:50 +0100
committerJonathan Corbet <corbet@lwn.net>2014-11-06 15:13:01 -0500
commit747029a566e5d637ef4972afd2cb7202f7b7ca7c (patch)
treee75c0fb32ec5883c06134b2e85ad08d26dacff44 /Documentation/kernel-parameters.txt
parent70c036347fe6675dcd87fd9c2f3159f90233a0ed (diff)
downloadlwn-747029a566e5d637ef4972afd2cb7202f7b7ca7c.tar.gz
lwn-747029a566e5d637ef4972afd2cb7202f7b7ca7c.zip
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 <fabf@skynet.be> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'Documentation/kernel-parameters.txt')
-rw-r--r--Documentation/kernel-parameters.txt7
1 files changed, 7 insertions, 0 deletions
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]