Improve TCP CUBIC specific after idle reaction.
The adjustments are inspired by the Linux stack, which has had a functionally equivalent implementation for more than a decade now. Submitted by: Richard Scheffenegger Reviewed by: Cheng Cui Differential Revision: https://reviews.freebsd.org/D18982
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=354773
@ -190,6 +190,8 @@ cubic_ack_received(struct cc_var *ccv, uint16_t type)
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if (cubic_data->num_cong_events == 0 &&
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cubic_data->max_cwnd < CCV(ccv, snd_cwnd))
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cubic_data->max_cwnd = CCV(ccv, snd_cwnd);
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cubic_data->K = cubic_k(cubic_data->max_cwnd /
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CCV(ccv, t_maxseg));
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}
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}
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}
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@ -206,6 +208,9 @@ cubic_after_idle(struct cc_var *ccv)
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cubic_data = ccv->cc_data;
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cubic_data->max_cwnd = ulmax(cubic_data->max_cwnd, CCV(ccv, snd_cwnd));
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cubic_data->K = cubic_k(cubic_data->max_cwnd / CCV(ccv, t_maxseg));
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newreno_cc_algo.after_idle(ccv);
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cubic_data->t_last_cong = ticks;
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}
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