[TRTLLM-6104] feat: add request_perf_metrics to triton LLMAPI backend

[xuanzic]

PR title

[TRTLLM-6104] feat: add request_perf_metrics to triton LLMAPI backend based on PR #5497

Description

add per request kv cache / timing / spec dec metrics in triton using LLMAPI pytorch runtime
Usage:

1. cp -R triton_backend/all_models/llmapi/ llmapi_repo/
2. python3 triton_backend/scripts/launch_triton_server.py --model_repo=llmapi_repo/

curl -X POST localhost:8000/v2/models/tensorrt_llm/generate -d '{"text_input": "Please explain to me what is machine learning? ", "max_tokens":10, "sampling_param_return_perf_metrics":true}' | jq

Response will look like:

  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   800    0   675  100   125    507     93  0:00:01  0:00:01 --:--:--   601
{
  "acceptance_rate": "0.0",
  "arrival_time_ns": "76735247746000",
  "first_scheduled_time_ns": "76735248284000",
  "first_token_time_ns": "76735374300000",
  "kv_cache_alloc_new_blocks": "1",
  "kv_cache_alloc_total_blocks": "1",
  "kv_cache_hit_rate": "0.0",
  "kv_cache_missed_block": "1",
  "kv_cache_reused_block": "0",
  "last_token_time_ns": "76736545324000",
  "model_name": "tensorrt_llm",
  "model_version": "1",
  "text_output": "Please explain to me what is machine learning? \n\nMachine learning is a field of computer science that involves the development of algorithms and models that can learn from data without being explicitly programmed. It is a",
  "total_accepted_draft_tokens": "0",
  "total_draft_tokens": "0"
}

Test Coverage

verify request_perf_metrics status in the SamplingParams

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[achartier]

lgtm

[achartier]

/bot run --stage-list "A30-Triton-[Post-Merge]-2"

[tensorrt-cicd]

PR_Github #10376 [ run ] triggered by Bot

[tensorrt-cicd]

PR_Github #10376 [ run ] completed with state SUCCESS
/LLM/main/L0_MergeRequest_PR pipeline #7672 (Partly Tested) completed with status: 'SUCCESS'

[achartier]

/bot run

[tensorrt-cicd]

PR_Github #10393 [ run ] triggered by Bot

[tensorrt-cicd]

PR_Github #10393 [ run ] completed with state SUCCESS
/LLM/main/L0_MergeRequest_PR pipeline #7685 completed with status: 'SUCCESS'

[achartier]

/bot reuse-pipeline

[tensorrt-cicd]

PR_Github #10421 [ reuse-pipeline ] triggered by Bot

[tensorrt-cicd]

PR_Github #10421 [ reuse-pipeline ] completed with state SUCCESS
Reusing PR_Github #10393 for commit 349b011

[achartier]

/bot reuse-pipeline

[tensorrt-cicd]

PR_Github #10427 [ reuse-pipeline ] triggered by Bot

[tensorrt-cicd]

PR_Github #10427 [ reuse-pipeline ] completed with state SUCCESS
Reusing PR_Github #10393 for commit e91dd26

[achartier]

/bot reuse-pipeline

[tensorrt-cicd]

PR_Github #10435 [ reuse-pipeline ] triggered by Bot

[tensorrt-cicd]

PR_Github #10435 [ reuse-pipeline ] completed with state SUCCESS
Reusing PR_Github #10393 for commit fab2f90