| > + * Decay RTTVAR at most once per flight, exploiting that
| > + * 1) pipe <= cwnd <= Sequence_Window = W (RFC 4340, 7.5.2)
| > + * 2) AWL = GSS-W+1 <= GAR <= GSS (RFC 4340, 7.5.1)
| > + * GAR is a useful bound for FlightSize = pipe, AWL is probably
| > + * too low as it over-estimates pipe.
| > + */
| > + if (after48(dccp_sk(sk)->dccps_gar, hctx->ccid2hctx_rtt_seq)) {
| > + if (hctx->ccid2hctx_mdev_max < hctx->ccid2hctx_rttvar)
| > + hctx->ccid2hctx_rttvar -= (hctx->ccid2hctx_rttvar - hctx->ccid2hctx_mdev_max) >> 2;
|
| More than 80 chars in this line! 87 chars. Is this ok?
|
There are actually 120 characters in this line. The 80-characters constraint
has become a recommendation, i.e. it is possible and legal to make exceptions.
I kept it in to allow a better comparison to the original TCP code.
If anything, it shows how the ubiquitous `hctx->ccid?hctx_' prefixes make
it hard to read the code.
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