XPRT_ADJUST_CWND(9)                      Linux Networking                     XPRT_ADJUST_CWND(9)



NAME
       xprt_adjust_cwnd - adjust transport congestion window

SYNOPSIS
       void xprt_adjust_cwnd(struct rpc_xprt * xprt, struct rpc_task * task, int result);

ARGUMENTS
       xprt
           pointer to xprt

       task
           recently completed RPC request used to adjust window

       result
           result code of completed RPC request

DESCRIPTION
       The transport code maintains an estimate on the maximum number of out- standing RPC
       requests, using a smoothed version of the congestion avoidance implemented in 44BSD. This
       is basically the Van Jacobson congestion algorithm: If a retransmit occurs, the congestion
       window is halved; otherwise, it is incremented by 1/cwnd when

       - a reply is received and - a full number of requests are outstanding and - the congestion
       window hasn't been updated recently.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                       XPRT_ADJUST_CWND(9)