DeepEP: Performance Analysis

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Batch tokens —
EP ranks —
Latency —
Bandwidth —
Compute/tok —
Expert skew —
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Comm Time: LL vs HT

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Low‑latency High‑throughput

LL wins for small batches (lower L), HT wins for large (higher BW_eff).

Throughput & Latency Analysis

Metric
LL w/ DBO
LL w/o DBO
HT w/ DBO
HT w/o DBO
Comm Time
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Step Latency
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Throughput
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Throughput: R = B / t_{\text{step}} (tokens/sec)

Latency: t_{\text{step}} \approx \max(t_{\text{compute}},\ t_{\text{comm}}) (with DBO)

DeepEP dispatch/compose kernel intuition: low‑latency reduces fixed overhead, while high‑throughput improves effective bandwidth via topology‑aware forwarding.