table of contents
| 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_task * task, int result);
ARGUMENTS¶
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¶
| May 2024 | Kernel Hackers Manual 2.6. |