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[AMD][MI35X] Qwen3.5-fp4 SGLang single-node benchmark env update #1716

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functionstackx merged 5 commits into
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amd/qwen3.5-mxfp4-0612
Jun 15, 2026
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[AMD][MI35X] Qwen3.5-fp4 SGLang single-node benchmark env update #1716
functionstackx merged 5 commits into
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amd/qwen3.5-mxfp4-0612

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@yichiche

@yichiche yichiche commented Jun 12, 2026

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Successful run:
see unofficial run visualizer at https://inferencex.semianalysis.com/inference?unofficialRun=27407038195
see unofficial run visualizer at https://inferencex.semianalysis.com/evaluation?unofficialRun=27407038195


Note

Low Risk
Benchmark and CI config only (image pin and runtime env); no application or auth logic changes.

Overview
Updates Qwen3.5 FP4 single-node SGLang benchmarks on MI355X (qwen3.5-fp4-mi355x-sglang and the MTP variant) to a newer ROCm image: lmsysorg/sglang-rocm:v0.5.13-rocm720-mi35x-20260612 (from v0.5.12.post1-rocm720-mi35x-20260604).

Both qwen3.5_fp4_mi355x.sh and qwen3.5_fp4_mi355x_mtp.sh now export AITER_FLYDSL_FORCE=1 alongside the existing AITER env vars, forcing the FlyDSL path for those runs. perf-changelog.yaml records the image bump and env change for those config keys.

Reviewed by Cursor Bugbot for commit 1a1fbb9. Bugbot is set up for automated code reviews on this repo. Configure here.

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Thanks for the contribution! For vLLM & SGLang, please ensure that your recipes is similar to the official vLLM recipes and/or the SGLang cookbook

If it is not, please create a PR first before we can merge your single node PR into the master branch. Let's ensure that the documentation is first class such that the entire ML community can benefit from your hard work! Thank you

PR authors are responsible for ensuring that after merging, all GitHub Action jobs fully pass. A lot of the time, failures are just flakes and simply re-running the failed jobs will fix it. If re-running failed jobs is attempted, PR authors are responsible for ensuring it passes. See GitHub's docs on re-running failed jobs: https://docs.github.com/en/actions/how-tos/manage-workflow-runs/re-run-workflows-and-jobs#re-running-failed-jobs-in-a-workflow

As a rule of thumb, generally, PR authors should request a review & get a PR approval from the respective companies' CODEOWNERS before requesting a review from core maintainers.

If additional help is needed, PR authors can reach out to core maintainers over Slack.

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Thanks for the contribution! For vLLM & SGLang, please ensure that your recipes is similar to the official vLLM recipes and/or the SGLang cookbook

If it is not, please create a PR first before we can merge your single node PR into the master branch. Let's ensure that the documentation is first class such that the entire ML community can benefit from your hard work! Thank you

PR authors are responsible for ensuring that after merging, all GitHub Action jobs fully pass. A lot of the time, failures are just flakes and simply re-running the failed jobs will fix it. If re-running failed jobs is attempted, PR authors are responsible for ensuring it passes. See GitHub's docs on re-running failed jobs: https://docs.github.com/en/actions/how-tos/manage-workflow-runs/re-run-workflows-and-jobs#re-running-failed-jobs-in-a-workflow

As a rule of thumb, generally, PR authors should request a review & get a PR approval from the respective companies' CODEOWNERS before requesting a review from core maintainers.

If additional help is needed, PR authors can reach out to core maintainers over Slack.

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Thanks for the contribution! For vLLM & SGLang, please ensure that your recipes is similar to the official vLLM recipes and/or the SGLang cookbook

If it is not, please create a PR first before we can merge your single node PR into the master branch. Let's ensure that the documentation is first class such that the entire ML community can benefit from your hard work! Thank you

PR authors are responsible for ensuring that after merging, all GitHub Action jobs fully pass. A lot of the time, failures are just flakes and simply re-running the failed jobs will fix it. If re-running failed jobs is attempted, PR authors are responsible for ensuring it passes. See GitHub's docs on re-running failed jobs: https://docs.github.com/en/actions/how-tos/manage-workflow-runs/re-run-workflows-and-jobs#re-running-failed-jobs-in-a-workflow

As a rule of thumb, generally, PR authors should request a review & get a PR approval from the respective companies' CODEOWNERS before requesting a review from core maintainers.

If additional help is needed, PR authors can reach out to core maintainers over Slack.

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Cursor Bugbot has reviewed your changes and found 1 potential issue.

Fix All in Cursor

❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, enable autofix in the Cursor dashboard.

Reviewed by Cursor Bugbot for commit 08427ba. Configure here.

Comment thread .github/configs/amd-master.yaml
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@1am9trash 1am9trash left a comment

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LGTM

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@functionstackx could you please review this?

@yichiche yichiche force-pushed the amd/qwen3.5-mxfp4-0612 branch from f1f0838 to 1a1fbb9 Compare June 15, 2026 02:35
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Conflict solved, push and commit.


export SGLANG_USE_AITER=1
export SGLANG_USE_AITER_UNIFIED_ATTN=1
export AITER_FLYDSL_FORCE=1

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thanks for the contributuioin. 1 small ask: can u add env var to https://github.com/sgl-project/sglang/tree/main/docs_new ? @1am9trash @yichiche

@yichiche yichiche Jun 15, 2026

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@functionstackx This env will be enable by default in the image soon , we won't need to specify this env in the future.

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/reuse-sweep-run 27407038195

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/reuse-sweep-run 27407038195

@functionstackx functionstackx merged commit e60453b into main Jun 15, 2026
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@functionstackx functionstackx deleted the amd/qwen3.5-mxfp4-0612 branch June 15, 2026 03:05
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3 participants