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@nv-guomingz nv-guomingz commented Sep 23, 2025

Summary by CodeRabbit

  • Documentation
    • Updated performance benchmarking guide: corrected relative links to Performance Overview, attention/inflight-batching, and quantization sections.
    • Expanded “Before Benchmarking” with detailed GPU configuration and best practices (persistence mode, clocks, power/boost).
    • Revised PyTorch and multimodal sections: adjusted command examples, labeled several code blocks as Python, updated dataset examples/paths, and refreshed formatting for clarity.

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@nv-guomingz nv-guomingz requested a review from a team as a code owner September 23, 2025 14:26
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📝 Walkthrough

Walkthrough

Updated developer benchmarking doc: corrected internal link paths and anchors, revised quantization references, expanded GPU configuration and benchmarking guidance, adjusted PyTorch/LoRA examples and multimodal dataset snippets, and converted several code blocks to Python formatting.

Changes

Cohort / File(s) Summary of Changes
Docs: perf benchmarking updates
docs/source/developer-guide/perf-benchmarking.md
Fixed relative links and anchors (performance overview, attention inflight-batching, quantization/support-matrix). Expanded "Before Benchmarking" with GPU power/clock/persistence guidance. Updated PyTorch and multimodal examples and commands; converted relevant code blocks to Python formatting and adjusted paths/anchors.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

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❌ Failed checks (1 warning)
Check name Status Explanation Resolution
Description Check ⚠️ Warning The PR description contains only the repository's PR template and placeholder headings with no filled-in Description, Test Coverage, or PR Checklist content, while the raw changes show link fixes and formatting updates to docs/source/developer-guide/perf-benchmarking.md that are not documented in the description. Required sections from the template are missing and there is no summary of what was changed, why, or how the fixes were verified. Because the submitted description does not include the necessary details required by the template, it does not meet the repository's PR description requirements. Please update the PR description to include a concise Description listing which links and files were changed (e.g., docs/source/developer-guide/perf-benchmarking.md), why the changes were made, and any commands or manual checks used to verify the fixes; add a Test Coverage section describing tests or verification steps and mark the PR Checklist items as appropriate. If you used CodeRabbit AI to generate the summary, paste or adapt that summary into the Description and confirm it matches the diffs. Providing these details will satisfy the repository template and help reviewers validate the change quickly.
✅ Passed checks (2 passed)
Check name Status Explanation
Title Check ✅ Passed The title "[None][doc] fix invalid links in perf benchmarking." concisely identifies the primary change (documentation link fixes in perf-benchmarking.md) and follows the repository's tag convention with [None] and [doc]. It is short, specific, and directly matches the file-level changes shown in the diff. This meets the PR title guidelines.
Docstring Coverage ✅ Passed No functions found in the changes. Docstring coverage check skipped.
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@nv-guomingz nv-guomingz force-pushed the user/guomingz/1.0_perf_invalid_link branch from c1e4320 to fa3e7f0 Compare September 23, 2025 14:31
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@nv-guomingz nv-guomingz requested a review from kaiyux September 23, 2025 14:33
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Actionable comments posted: 1

🧹 Nitpick comments (4)
docs/source/developer-guide/perf-benchmarking.md (4)

158-161: Capitalize “PyTorch”.

Minor copy edit for consistency with the rest of the doc.

-Note that CUDA graph is enabled by default. You can add additional pytorch config with `--extra_llm_api_options` followed by the path to a YAML file. For more details, please refer to the help text by running the command with `--help`.
+Note that CUDA graph is enabled by default. You can add additional PyTorch config with `--extra_llm_api_options` followed by the path to a YAML file. For more details, please refer to the help text by running the command with `--help`.

311-322: Use shell code fence, not Python.

This block is a shell command; Python highlighting is misleading.

-```python
+```shell
 python ./benchmarks/cpp/prepare_dataset.py \
   --tokenizer Qwen/Qwen2-VL-2B-Instruct \
   --stdout \
   dataset \
   --dataset-name lmms-lab/MMMU \
   --dataset-split test \
   --dataset-image-key image \
   --dataset-prompt-key question \
   --num-requests 10 \
   --output-len-dist 128,5 > mm_data.jsonl

---

`335-343`: **Use shell code fence, not Python.**

This is a CLI invocation; switch the fence to shell for correct syntax highlighting.

```diff
-```python
+```shell
 trtllm-bench --model Qwen/Qwen2-VL-2B-Instruct \
   throughput \
   --dataset mm_data.jsonl \
   --backend pytorch \
   --num_requests 10 \
   --max_batch_size 4 \
   --modality image

---

`101-103`: **Quantization links updated — anchor present; add stable label**

The #model-supported-matrix anchor exists in docs/source/features/quantization.md (heading "Model Supported Matrix", ~line 62). Add a stable Sphinx label for that section — reST: .. _model-supported-matrix: (above the heading) or MyST: ## Model Supported Matrix {#model-supported-matrix} — and update links to use label-based refs instead of hard-coded anchors.

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<summary>📜 Review details</summary>

**Configuration used**: Path: .coderabbit.yaml

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<summary>📥 Commits</summary>

Reviewing files that changed from the base of the PR and between 57079cecb3cf2f48720e08263efcb83bd877890f and fa3e7f0a3cba9c71beac38d4a72bc03d9040b077.

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* `docs/source/developer-guide/perf-benchmarking.md` (6 hunks)

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<summary>🧰 Additional context used</summary>

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<summary>🧠 Learnings (6)</summary>

<details>
<summary>📚 Learning: 2025-07-28T17:06:08.621Z</summary>

Learnt from: moraxu
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:**
- `docs/source/developer-guide/perf-benchmarking.md`

</details>
<details>
<summary>📚 Learning: 2025-09-09T09:40:45.658Z</summary>

Learnt from: fredricz-20070104
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:**
- `docs/source/developer-guide/perf-benchmarking.md`

</details>
<details>
<summary>📚 Learning: 2025-08-06T13:58:07.506Z</summary>

Learnt from: galagam
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:**
- `docs/source/developer-guide/perf-benchmarking.md`

</details>
<details>
<summary>📚 Learning: 2025-08-11T20:09:24.389Z</summary>

Learnt from: achartier
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:**
- `docs/source/developer-guide/perf-benchmarking.md`

</details>
<details>
<summary>📚 Learning: 2025-08-26T09:49:04.956Z</summary>

Learnt from: pengbowang-nv
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:**
- `docs/source/developer-guide/perf-benchmarking.md`

</details>
<details>
<summary>📚 Learning: 2025-08-01T15:14:45.673Z</summary>

Learnt from: yibinl-nvidia
PR: #6506
File: examples/models/core/mixtral/requirements.txt:3-3
Timestamp: 2025-08-01T15:14:45.673Z
Learning: In TensorRT-LLM, examples directory can have different dependency versions than the root requirements.txt file. Version conflicts between root and examples dependencies are acceptable because examples are designed to be standalone and self-contained.


**Applied to files:**
- `docs/source/developer-guide/perf-benchmarking.md`

</details>

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* GitHub Check: Pre-commit Check

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<details>
<summary>🔇 Additional comments (2)</summary><blockquote>

<details>
<summary>docs/source/developer-guide/perf-benchmarking.md (2)</summary><blockquote>

`70-71`: **LGTM: link to Performance Overview.**

The relative path looks correct.

---

`11-12`: **LGTM — anchor verified**

Confirmed: docs/source/performance/perf-overview.md contains the heading "## Throughput Measurements" (line 17), so the #throughput-measurements anchor is valid.

</blockquote></details>

</blockquote></details>

</details>

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PR_Github #19703 [ run ] triggered by Bot

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PR_Github #19703 [ run ] completed with state SUCCESS
/LLM/release-1.0/L0_MergeRequest_PR pipeline #440 completed with status: 'SUCCESS'

@nv-guomingz nv-guomingz merged commit ae8270b into NVIDIA:release/1.0 Sep 23, 2025
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@nv-guomingz nv-guomingz deleted the user/guomingz/1.0_perf_invalid_link branch September 30, 2025 08:01
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