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[AMD][MI35X] Qwen3.5-fp4 SGLang single-node benchmark env update#2265

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[AMD][MI35X] Qwen3.5-fp4 SGLang single-node benchmark env update#2265
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@yichiche yichiche commented Jul 18, 2026

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yichiche requested a review from a team July 18, 2026 03:18
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Thanks for the contribution! Please reach out to respective companies' CODEOWNER to fill in the latest PR_REVIEW_CHECKLIST.md before pinging core maintainer on Slack for review. In order for the signoff PR check bot to trigger, you must follow the PR_REVIEW_CHECKLIST.md template correctly, including the phrase As a PR reviewer and CODEOWNER, I have reviewed this and have.

For PR verification, add the full-sweep-fail-fast label (strongly recommended) to this PR — the benchmark sweep only runs on labeled PRs. Use full-sweep-enabled only if you need matrix jobs to keep running past a failure.

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. See GitHub's docs on re-running failed jobs


感谢你的贡献!请联系相应公司的 CODEOWNER 填写最新的 PR_REVIEW_CHECKLIST.md,然后再在 Slack 上联系核心维护者进行审阅。为了触发 signoff PR 检查机器人,你必须正确遵循 PR_REVIEW_CHECKLIST.md 模板,包括保留英文语句 As a PR reviewer and CODEOWNER, I have reviewed this and have

如需进行 PR 验证,请为此 PR 添加 full-sweep-fail-fast 标签(强烈推荐)— 基准测试 sweep 仅在带有标签的 PR 上运行。仅当需要矩阵任务在失败后继续运行时才使用 full-sweep-enabled

PR 作者有责任确保合并后所有 GitHub Action 任务完全通过。 很多时候失败只是偶发抖动(flake),重新运行失败的任务即可解决。参见 GitHub 关于重新运行失败任务的文档

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Thanks for the contribution! Please reach out to respective companies' CODEOWNER to fill in the latest PR_REVIEW_CHECKLIST.md before pinging core maintainer on Slack for review. In order for the signoff PR check bot to trigger, you must follow the PR_REVIEW_CHECKLIST.md template correctly, including the phrase As a PR reviewer and CODEOWNER, I have reviewed this and have.

For PR verification, add the full-sweep-fail-fast label (strongly recommended) to this PR — the benchmark sweep only runs on labeled PRs. Use full-sweep-enabled only if you need matrix jobs to keep running past a failure.

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. See GitHub's docs on re-running failed jobs


感谢你的贡献!请联系相应公司的 CODEOWNER 填写最新的 PR_REVIEW_CHECKLIST.md,然后再在 Slack 上联系核心维护者进行审阅。为了触发 signoff PR 检查机器人,你必须正确遵循 PR_REVIEW_CHECKLIST.md 模板,包括保留英文语句 As a PR reviewer and CODEOWNER, I have reviewed this and have

如需进行 PR 验证,请为此 PR 添加 full-sweep-fail-fast 标签(强烈推荐)— 基准测试 sweep 仅在带有标签的 PR 上运行。仅当需要矩阵任务在失败后继续运行时才使用 full-sweep-enabled

PR 作者有责任确保合并后所有 GitHub Action 任务完全通过。 很多时候失败只是偶发抖动(flake),重新运行失败的任务即可解决。参见 GitHub 关于重新运行失败任务的文档

Comment thread perf-changelog.yaml Outdated
Comment thread perf-changelog.yaml Outdated
…p aiter-allreduce-fusion

Add ROCM_QUICK_REDUCE_QUANTIZATION=INT8 and remove --enable-aiter-allreduce-fusion
for Qwen3.5-397B-A17B-MXFP4 mi355x single-node benchmarks (non-MTP and MTP).
@yichiche
yichiche force-pushed the amd/qwen3.5-mxfp4-0718 branch from ca763f2 to 3f314a7 Compare July 18, 2026 03:40
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@1am9trash

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/reuse-sweep-run

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As a PR reviewer and CODEOWNER, I have reviewed this and have:

  • Verified that as of the moment of typing this, this is the latest version of PR_REVIEW_CHECKLIST.md
  • Verified that the general code quality meets the InferenceX standard and does not make the code quality any worse.
  • Verified that this PR has passed PR validation. Please link to GitHub Action workflow that shows this. Link: https://github.com/SemiAnalysisAI/InferenceX/actions/runs/29629223218
  • Verified that this PR passes evals. Please link to GitHub Action workflow that shows this. Link: https://github.com/SemiAnalysisAI/InferenceX/actions/runs/29629223218
  • Verified that speculative decoding PRs uses chat templates to align the AL distribution to real world
  • For agentic workloads: verified that speculative-decoding configs (EAGLE / MTP / draft models) run with simulated synthetic acceptance, with the acceptance-length value taken from the committed golden AL curve in golden_al_distribution/ for that model, thinking mode, and draft length. A submission may choose any supported draft length, but it may not substitute a different acceptance target.
  • Verified that the model architecture isn't changed with benchmark hacks like using --hf-overrides to skipping indexer for every x layers on models that don't natively support this. As a general rule, we won't accept optimizations that reduces the number of model architecture FLOPs. Anything that makes that same computation run faster is fair game; FLOPs at lower precisions is fine, given that the config passes private evals. As an general north star princple, we should only use optimizations which is used in production by customers that care about accuracy
  • If an company claims that they support vLLM/SGLang as first class LLM inference engines on their hardware, I have verified that the respective vLLM submission made using upstream https://hub.docker.com/u/vllm docker repo, upstream SGLang https://hub.docker.com/u/lmsysorg docker repo. The only exceptions are for new hardware, such as MI455X UALoE72, Vera Rubin NVL72, Rubin NVL8, etc., and for new model architectures where there is an actual reason why vLLM/SGLang does not fundamentally support them yet as supported by vLLM/SGLang community maintainers
  • If an company claims that they support vLLM/SGLang as first class upstream in-tree LLM inference engines on their hardware, I have have verified that the respective vLLM/SGLang submission has been made before additional frameworks (TRT-LLM, ATOM, etc.). The only exceptions are for new hardware, such as MI455X UALoE72, Vera Rubin NVL72, Rubin NVL8, etc., and for new model architectures where there is an actual reason why vLLM/SGLang does not fundamentally support them yet.
  • Verified that every single-node vLLM/SGLang recipe in this PR is documented in the official vLLM recipes and/or the SGLang cookbook:
    • I linked the corresponding upstream PR in the vLLM recipe repo or SGLang repo and verified that it is MERGED before this InferenceX PR merges. An opened, draft, or closed-without-merge upstream PR does not satisfy this requirement. If the matching recipe was already published, I linked the published recipe/cookbook page in the additional detail section below.
  • Verified that this PR does not patch the inference engine or serving stack — the pinned image must run as shipped. This covers .patch files / git apply / patch, inline patches embedded in benchmark scripts (e.g. a python3/sed heredoc that rewrites installed engine sources before serving), in-place edits of site-packages, monkey-patching, overwriting container files, and installing forked/rebuilt engine wheels on top of the pinned image. The only exception is a patch covered by a filled-out waiver at docs/waiver/<PR_NUMBER>.md — named after the PR that introduces the patch and filed in that same PR, stating what is patched, why the unmodified upstream image cannot run this benchmark, the upstream PR/issue link, and the removal plan — which I have linked below in the additional detail section.
  • If any of the above criteria cannot reasonably be satisfied, I have provided additional reasoning below.

Additional detail section:

Signed: @1am9trash

@Klaud-Cold

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✅✅✅ Verdict: PASS ✅✅✅

✅ Check 0 (CODEOWNER): PASS — @1am9trash is an AMD CODEOWNER (configs/amd-master.yaml line); changed paths fall under the catch-all, which any recognized CODEOWNER satisfies.
✅ Check 1 (sweep on in-PR commit): PASS — sole PR commit 3f314a7 has green executed single-node 8k1k / and eval / check-runs in run 29629223218.
✅ Check 2 (evals): PASS — GSM8K em_strict 0.967–0.970 across non-MTP and MTP lanes (n=1319), on the same image as the config (lmsysorg/sglang-rocm:v0.5.15-rocm720-mi35x-20260713).
✅ Check 3 (recipe): PASS — sgl-project/sglang#31737 is MERGED (2026-07-20) and documents exactly this change: ROCM_QUICK_REDUCE_QUANTIZATION=INT8 replacing --enable-aiter-allreduce-fusion for MXFP4 on MI355X; all other major args (aiter backend, page-size 16, disable-radix-cache, EAGLE/MTP) match the cookbook. Harness knobs (--mem-fraction-static, --max-running-requests, --watchdog-timeout, multithread load) are InferenceX-specific, informational only.
✅ Check 4 (reuse command): PASS — /reuse-sweep-run posted by @1am9trash (COLLABORATOR).
✅ Check 5 (latest checklist): PASS — sign-off contains every current-template item, all checked.
➖ Check 6 (upstream image / engine-first): N/A — no master-config entries changed; existing entries already use upstream lmsysorg/sglang-rocm.
✅ Check 7 (no architecture hacks): PASS — INT8 quick all-reduce quantizes collectives only; no FLOPs removed, evals pass, documented upstream.
✅ Check 8 (spec-decode chat template): PASS — MTP script benchmarks via --use-chat-template.
✅ Check 9 (no engine patches): PASS — no patching of the serving stack; env var + flag removal only.
➖ Check 10 (agentic golden AL): N/A — no agentic spec-decode changes; no simulated-acceptance knobs on the non-agentic MTP config.

@yichiche
yichiche marked this pull request as draft July 20, 2026 06:33
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