diff options
| -rw-r--r-- | share/man/man4/tcp.4 | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/share/man/man4/tcp.4 b/share/man/man4/tcp.4 index 1024271..473776c 100644 --- a/share/man/man4/tcp.4 +++ b/share/man/man4/tcp.4 @@ -345,15 +345,22 @@ intentionally set a less then optimum limit to smooth data flow over a network while still being able to specify huge internal TCP buffers. .It tcp.inflight_stab The bandwidth delay product algorithm requires a slightly larger window -then it otherwise calculates for stability. This parameter determines the -extra window in maximal packets / 10. The default value of 20 represents +than it otherwise calculates for stability. This parameter determines the +extra window in maximal packets / 10. The default value of 20 represents 2 maximal packets. Reducing this value is not recommended but you may come across a situation with very slow links where the ping time reduction of the default inflight code is not sufficient. If this case -occurs you should first try reducing tcp.inflight_min and, if that does not -work, reduce both tcp.inflight_min and tcp.inflight_stab, trying values of -15, 10, or 5 for the latter. Never use a value less then 5. Reducing -tcp.inflight_stab can lead to upwards of a 20% underutilization of the link +occurs, you should first try reducing +.Va tcp.inflight_min +and, if that does not +work, reduce both +.Va tcp.inflight_min +and +.Va tcp.inflight_stab , +trying values of +15, 10, or 5 for the latter. Never use a value less than 5. Reducing +.Va tcp.inflight_stab +can lead to upwards of a 20% underutilization of the link as well as reducing the algorithm's ability to adapt to changing situations and should only be done as a last resort. .El |
