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doc: Enforce max_inflight_requests as a shared limit across ensemble requests #152

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pskiran1 merged 6 commits into from
Apr 2, 2026
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doc: Enforce max_inflight_requests as a shared limit across ensemble requests #152

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14 changes: 8 additions & 6 deletions protobuf/model_config.proto
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
// Copyright 2018-2025, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
// Copyright 2018-2026, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
Expand Down Expand Up @@ -1662,11 +1662,13 @@ message ModelEnsembling

//@@ .. cpp:var:: uint32 max_inflight_requests
//@@
//@@ The maximum number of concurrent inflight requests allowed at each
//@@ ensemble step per inference request. This limit prevents unbounded
//@@ memory growth when ensemble steps produce responses faster than
//@@ downstream steps can consume, e.g. decoupled models.
//@@ Default value is 0, which indicates that no limit is enforced.
//@@ BETA (Subject to change)
//@@ The maximum number of concurrent in-flight requests allowed at each
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//@@ ensemble step across all ongoing ensemble requests for this model
//@@ instance. This per-step limit prevents unbounded memory growth when
//@@ ensemble steps produce responses faster than downstream steps can
//@@ consume them (for example, in decoupled models).
//@@ The default value is 0, which indicates that no limit is enforced.
//@@
//@@ Note: Applying this limit may block upstream steps while they wait
//@@ for downstream capacity. This blocking does not cancel or internally
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