[https://nvbugs/5670672][fix] Fix flaky KV connector tests #9676
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Signed-off-by: jthomson04 <[email protected]>
Signed-off-by: jthomson04 <[email protected]>
Signed-off-by: jthomson04 <[email protected]>
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📝 WalkthroughWalkthroughA test helper function Changes
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🧹 Nitpick comments (1)
tests/integration/defs/llmapi/test_llm_api_connector.py (1)
17-17: Helper wrapper and delayed generate usage look goodUsing
generate_and_sleepto wrapmodel.generatewith a fixed 1s delay is a simple, localized way to give KV-connector async logic time to complete, and the call sites preserve the original argument structure. The extra ~1s per call is acceptable for this small set of tests; if flakiness or runtime becomes a concern later, you could centralize the delay as a module-level constant or swap it for a more explicit “wait for connector to drain” hook if the backend ever exposes one.Also applies to: 67-75, 95-95, 202-202, 242-242, 292-292, 321-321, 394-396, 401-403
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tests/integration/defs/llmapi/test_llm_api_connector.py(10 hunks)tests/integration/test_lists/test-db/l0_a10.yml(1 hunks)
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**/*.py
📄 CodeRabbit inference engine (CODING_GUIDELINES.md)
**/*.py: The code developed for TensorRT-LLM should conform to Python 3.8+
Indent Python code with 4 spaces; do not use tabs
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Python filenames should use snake_case (e.g.,some_file.py)
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Python function and method names should use snake_case (e.g.,def my_awesome_function():)
Python local variable names should use snake_case, with prefixkfor variable names that start with a number (e.g.,k_99th_percentile = ...)
Python global variables should use upper snake_case with prefixG(e.g.,G_MY_GLOBAL = ...)
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tests/integration/defs/llmapi/test_llm_api_connector.py
**/*.{cpp,h,cu,py}
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All TensorRT-LLM Open Source Software code files should contain an NVIDIA copyright header that includes the current year at the top
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tests/integration/defs/llmapi/test_llm_api_connector.py
🧠 Learnings (9)
📚 Learning: 2025-09-09T09:40:45.658Z
Learnt from: fredricz-20070104
Repo: NVIDIA/TensorRT-LLM PR: 7645
File: tests/integration/test_lists/qa/llm_function_core.txt:648-648
Timestamp: 2025-09-09T09:40:45.658Z
Learning: In TensorRT-LLM test lists, it's common and intentional for the same test to appear in multiple test list files when they serve different purposes (e.g., llm_function_core.txt for comprehensive core functionality testing and llm_function_core_sanity.txt for quick sanity checks). This duplication allows tests to be run in different testing contexts.
Applied to files:
tests/integration/test_lists/test-db/l0_a10.yml
📚 Learning: 2025-09-17T02:48:52.732Z
Learnt from: tongyuantongyu
Repo: NVIDIA/TensorRT-LLM PR: 7781
File: tests/integration/test_lists/waives.txt:313-313
Timestamp: 2025-09-17T02:48:52.732Z
Learning: In TensorRT-LLM, `tests/integration/test_lists/waives.txt` is specifically for waiving/skipping tests, while other test list files like those in `test-db/` and `qa/` directories are for different test execution contexts (pre-merge, post-merge, QA tests). The same test appearing in both waives.txt and execution list files is intentional - the test is part of test suites but will be skipped due to the waiver.
Applied to files:
tests/integration/test_lists/test-db/l0_a10.yml
📚 Learning: 2025-08-06T13:58:07.506Z
Learnt from: galagam
Repo: NVIDIA/TensorRT-LLM PR: 6487
File: tests/unittest/_torch/auto_deploy/unit/singlegpu/test_ad_trtllm_bench.py:1-12
Timestamp: 2025-08-06T13:58:07.506Z
Learning: In TensorRT-LLM, test files (files under tests/ directories) do not require NVIDIA copyright headers, unlike production source code files. Test files typically start directly with imports, docstrings, or code.
Applied to files:
tests/integration/test_lists/test-db/l0_a10.yml
📚 Learning: 2025-08-26T09:49:04.956Z
Learnt from: pengbowang-nv
Repo: NVIDIA/TensorRT-LLM PR: 7192
File: tests/integration/test_lists/test-db/l0_dgx_b200.yml:56-72
Timestamp: 2025-08-26T09:49:04.956Z
Learning: In TensorRT-LLM test configuration files, the test scheduling system handles wildcard matching with special rules that prevent duplicate test execution even when the same tests appear in multiple yaml files with overlapping GPU wildcards (e.g., "*b200*" and "*gb200*").
Applied to files:
tests/integration/test_lists/test-db/l0_a10.yml
📚 Learning: 2025-07-28T17:06:08.621Z
Learnt from: moraxu
Repo: NVIDIA/TensorRT-LLM PR: 6303
File: tests/integration/test_lists/qa/examples_test_list.txt:494-494
Timestamp: 2025-07-28T17:06:08.621Z
Learning: In TensorRT-LLM testing, it's common to have both CLI flow tests (test_cli_flow.py) and PyTorch API tests (test_llm_api_pytorch.py) for the same model. These serve different purposes: CLI flow tests validate the traditional command-line workflow, while PyTorch API tests validate the newer LLM API backend. Both are legitimate and should coexist.
Applied to files:
tests/integration/test_lists/test-db/l0_a10.yml
📚 Learning: 2025-10-22T06:53:47.017Z
Learnt from: xinhe-nv
Repo: NVIDIA/TensorRT-LLM PR: 8534
File: scripts/format_test_list.py:1-6
Timestamp: 2025-10-22T06:53:47.017Z
Learning: The file `scripts/format_test_list.py` in the TensorRT-LLM repository does not require the NVIDIA Apache-2.0 copyright header.
Applied to files:
tests/integration/test_lists/test-db/l0_a10.yml
📚 Learning: 2025-08-29T14:07:45.863Z
Learnt from: EmmaQiaoCh
Repo: NVIDIA/TensorRT-LLM PR: 7370
File: tests/unittest/trt/model_api/test_model_quantization.py:24-27
Timestamp: 2025-08-29T14:07:45.863Z
Learning: In TensorRT-LLM's CI infrastructure, pytest skip markers (pytest.mark.skip) are properly honored even when test files have __main__ blocks that call test functions directly. The testing system correctly skips tests without requiring modifications to the __main__ block execution pattern.
Applied to files:
tests/integration/test_lists/test-db/l0_a10.yml
📚 Learning: 2025-11-27T09:23:18.742Z
Learnt from: fredricz-20070104
Repo: NVIDIA/TensorRT-LLM PR: 9511
File: tests/integration/defs/examples/serve/test_serve.py:136-186
Timestamp: 2025-11-27T09:23:18.742Z
Learning: In TensorRT-LLM testing, when adding test cases based on RCCA commands, the command format should be copied exactly as it appears in the RCCA case, even if it differs from existing tests. For example, some RCCA commands for trtllm-serve may omit the "serve" subcommand while others include it.
Applied to files:
tests/integration/test_lists/test-db/l0_a10.yml
📚 Learning: 2025-08-11T20:09:24.389Z
Learnt from: achartier
Repo: NVIDIA/TensorRT-LLM PR: 6763
File: tests/integration/defs/triton_server/conftest.py:16-22
Timestamp: 2025-08-11T20:09:24.389Z
Learning: In the TensorRT-LLM test infrastructure, the team prefers simple, direct solutions (like hard-coding directory traversal counts) over more complex but robust approaches when dealing with stable directory structures. They accept the maintenance cost of updating tests if the layout changes.
Applied to files:
tests/integration/test_lists/test-db/l0_a10.yml
🧬 Code graph analysis (1)
tests/integration/defs/llmapi/test_llm_api_connector.py (4)
tensorrt_llm/llmapi/llm.py (1)
generate(262-344)tensorrt_llm/executor/executor.py (1)
generate(163-213)tensorrt_llm/executor/ray_gpu_worker.py (1)
sleep(209-222)tensorrt_llm/llmapi/llm_args.py (1)
KvCacheConfig(1435-1579)
🪛 Ruff (0.14.7)
tests/integration/defs/llmapi/test_llm_api_connector.py
168-168: Local variable outputs is assigned to but never used
Remove assignment to unused variable outputs
(F841)
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- GitHub Check: Pre-commit Check
🔇 Additional comments (2)
tests/integration/defs/llmapi/test_llm_api_connector.py (1)
426-426: KvCacheConfigmax_tokens=144change is reasonableBumping
KvCacheConfig(max_tokens)from 120 to 144 fortest_connector_multi_requestmakes sense to ensure there is enough KV capacity for the first two 48-token requests plus the third, longer request once earlier KV is freed. The change is scoped to this test and should help avoid capacity-related flakiness; just ensure CI on the target A10 configuration confirms the behavior you expect.tests/integration/test_lists/test-db/l0_a10.yml (1)
134-134: Addingtest_connector_multi_requestto the A10 TensorRT pre-merge list is consistentThe new
llmapi/test_llm_api_connector.py::test_connector_multi_requestentry matches the existing pattern for other connector tests in this block and appropriately brings the multi-request scenario into the pre-merge TensorRT CI on A10.
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