Define and test the BBR steady-state queue time budget
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@@ -23,6 +23,7 @@ extern "C" {
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#define BBR_STARTUP_CWND_GAIN (BBR_UNIT * 2)
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#define BBR_DRAIN_GAIN (BBR_UNIT * 1000 / 2885)
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#define BBR_CWND_GAIN (BBR_UNIT * 2)
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#define BBR_QUEUE_BUDGET_US 20000 // целевая добавочная очередь после STARTUP; минимум 4*MSS сохраняется
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#define BBR_PROBE_RTT_CWND_GAIN (BBR_UNIT * 1 / 2)
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#define BBR_CWND_MIN_TARGET 4
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#define BBR_FULL_BW_THRESH (BBR_UNIT * 5 / 4)
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@@ -68,6 +69,8 @@ struct bbr {
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uint32_t inflight_hi;
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uint32_t bw_latest;
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uint32_t inflight_latest;
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uint32_t queue_budget_us; // целевое время очереди в PROBE_BW, мкс; init задаёт 20мс, 0 отключает ограничение
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uint32_t queue_cwnd_cap; // последний предел DATA: max(4*MSS, BW*(min_rtt+budget)); 0 — ограничение не активно
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uint8_t mode;
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uint8_t cycle_idx;
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uint16_t pacing_gain;
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