[None][fix] Drop stale benchmarks copies from Dockerfile.multi

[jieli-matrix]

Description

docker/Dockerfile.multi still copies the benchmarks/ directory, which was
deleted from the repository by #16612
([TRTLLM-14474][chore] Remove legacy python relics and refresh docs after the
backend removal, commit 3c07ada3c5). That PR did not update the Dockerfile, so
every build of the wheel or release target on main has been broken since
Jul 24:

Dockerfile.multi:109
 107 |     FROM ${DEVEL_IMAGE} AS wheel
 108 |     WORKDIR /src/tensorrt_llm
 109 | >>> COPY benchmarks benchmarks
ERROR: failed to solve: failed to compute cache key: "/benchmarks": not found

Why CI did not catch this

Pre-merge CI builds the wheel inside an already-built devel container
(buildWheelInContainer in jenkins/Build.groovy) rather than going through the
wheel/release stages of Dockerfile.multi, so it never evaluates the failing
COPY. The breakage only surfaces on paths that build the release image from the
Dockerfile, e.g. make -C docker release_build

Dev Engineer Review

• Removed stale benchmarks/ references from wheel and release stages in docker/Dockerfile.multi (no remaining benchmarks references in the current Dockerfile).
• Prevents Docker builds from failing after the benchmarks/ directory deletion.
• Changes are scoped to Docker image assembly and do not introduce API/runtime behavior changes.

QA Engineer Review

No test changes.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Enterprise

Run ID: 9d96d28d-f559-40aa-a63f-1e6d1e83c8d6

📥 Commits

Reviewing files that changed from the base of the PR and between 7d03ebd and feb6a19.

📒 Files selected for processing (1)

• docker/Dockerfile.multi

💤 Files with no reviewable changes (1)

• docker/Dockerfile.multi

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Walkthrough

The multi-stage Docker build no longer copies the benchmarks directory into the wheel-stage context or final release image. Other context files, built wheels, library symlink setup, and runtime cleanup remain unchanged.

Changes

Release image assembly

Layer / File(s)	Summary
Exclude benchmark artifacts docker/Dockerfile.multi	The wheel stage no longer copies benchmarks, and the release stage removes its benchmark bind mount and copy while retaining the other context and wheel transfers.

Estimated code review effort: 1 (Trivial) | ~3 minutes

Possibly related PRs

• NVIDIA/TensorRT-LLM#14972: Also modifies benchmark artifact handling in docker/Dockerfile.multi.

Suggested reviewers: wanli-jiang, tburt-nv, yiqingy0

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title matches the change: removing stale benchmarks copies from Dockerfile.multi.
Description check	✅ Passed	The description clearly explains the bug and fix, but it omits the Test Coverage and PR Checklist sections from the template.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

---

_{Comment @coderabbitai help to get the list of available commands.}

[ZhanruiSunCh]

LGTM

[jieli-matrix]

/bot run --stage-list "Build-Docker-Images"

[tensorrt-cicd]

PR_Github #61802 [ run ] triggered by Bot. Commit: 7d03ebd Link to invocation

[tensorrt-cicd]

PR_Github #61802 [ run ] completed with state FAILURE. Commit: 7d03ebd
/LLM/main/L0_MergeRequest_PR pipeline #50001 (Partly Tested) completed with status: 'FAILURE'

CI Report

⚠️ Action Required:

• Please check the failed tests and fix your PR
• If you cannot view the failures, ask the CI triggerer to share details
• Once fixed, request an NVIDIA team member to trigger CI again

CI Agent Failure Analysis

Link to invocation

[ZhanruiSunCh]

/bot skip --comment "Benchmarks issue fixed, the pipeline is failed due to a known network flaky issue."

[tensorrt-cicd]

PR_Github #61938 [ skip ] triggered by Bot. Commit: feb6a19 Link to invocation

[tensorrt-cicd]

PR_Github #61938 [ skip ] completed with state SUCCESS. Commit: feb6a19
Skipping testing for commit feb6a19

Link to invocation