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feat: Add support for max_inflight_requests parameter to prevent unbounded memory growth in ensemble models #141

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Merged
merged 10 commits into from
Nov 3, 2025
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feat: Add support for max_inflight_requests parameter to prevent unbounded memory growth in ensemble models #141

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12 changes: 11 additions & 1 deletion protobuf/model_config.proto
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
// Copyright 2018-2024, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
// Copyright 2018-2025, 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 @@ -1659,6 +1659,16 @@ message ModelEnsembling
//@@ The models and the input / output mappings used within the ensemble.
//@@
repeated Step step = 1;

//@@ .. cpp:var:: uint32 max_inflight_responses
//@@
//@@ The maximum number of concurrent inflight responses from ensemble
//@@ steps to downstream consumers. This limit prevents unbounded memory
//@@ growth when decoupled models produce responses faster than downstream
//@@ models can consume them. Default value is 0, which indicates that no
//@@ limit is enforced (unlimited).
//@@
uint32 max_inflight_responses = 2;
}

//@@
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