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| author | Michael Kerrisk <mtk.manpages@gmail.com> | 2008-11-20 16:56:21 -0500 |
|---|---|---|
| committer | Michael Kerrisk <mtk.manpages@gmail.com> | 2008-11-25 20:54:12 -0500 |
| commit | 98eaadb06bb5ec54bda11780703a96aa9d5fab9d (patch) | |
| tree | 600af04f8bc5ec9dbef4acca6cf96033db655b97 /man7 | |
| parent | 8efc4ff594a4ca68ef0ba5b55fe189378aad19cb (diff) | |
| download | man-pages-98eaadb06bb5ec54bda11780703a96aa9d5fab9d.tar.gz | |
tcp.7: Document /proc file tcp_no_metrics_save (new in Linux 2.6.6)
Text taken from Documentation/networking/ip-sysctl.txt
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Diffstat (limited to 'man7')
| -rw-r--r-- | man7/tcp.7 | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/man7/tcp.7 b/man7/tcp.7 index 40bb17ce92..fadfd41b79 100644 --- a/man7/tcp.7 +++ b/man7/tcp.7 @@ -435,6 +435,18 @@ will allocate. This value overrides any other limits imposed by the kernel. .TP +.IR tcp_no_metrics_save " (Boolean; default: disabled; since Linux 2.6.6)" +.\" The following is from 2.6.28-rc4: Documentation/networking/ip-sysctl.txt +By default, TCP saves various connection metrics in the route cache +when the connection closes, so that connections established in the +near future can use these to set initial conditions. +Usually, this increases overall performance, +but it may sometimes cause performance +degradation. +If +.I tcp_no_metrics_save +is enabled, TCP will not cache metrics on closing connections. +.TP .IR tcp_orphan_retries " (integer; default: 8)" The maximum number of attempts made to probe the other end of a connection which has been closed by our end. |