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test-model-common

Testing & Quality
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Common override guidance for all skills/test_model sub-skills. Applies to LightLLM model accuracy/speed tests that use lm_eval or lmms_eval, especially local-completions GSM8K runs.

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How to use this skill

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  3. Review the proposed files and risks before you approve installation.
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Source SKILL.md: https://github.com/ModelTC/LightLLM/blob/HEAD/skills/test_model/SKILL.md

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Copying this prompt does not install or run the skill. Review third-party files before use. Codex skill guide

Test Model 通用覆盖规则

本目录下所有子 skill 默认继承这些规则。若子 skill 中的命令与这里冲突,优先按这里执行; 只有在用户明确要求在线拉取数据/模型,或本地缓存缺失时,才临时关闭对应离线变量。

lm_eval 启动加速

lm_eval 每次新进程启动都会加载 task、dataset、tokenizer 和 HuggingFace 相关模块。 实测 local-completions + gsm8k --limit 1 时,默认在线探测模式会在 tokenizer/dataset 初始化阶段等待很久;强制使用本地缓存后,启动耗时明显下降。

执行所有 lm_eval 精度测试时,默认在命令前加:

export HF_ALLOW_CODE_EVAL=1
export HF_DATASETS_OFFLINE=1
export TRANSFORMERS_OFFLINE=1
export HF_HUB_OFFLINE=1
export http_proxy=
export https_proxy=
export no_proxy=localhost,127.0.0.1,0.0.0.0,::1,${HOST:-127.0.0.1},${PD_MASTER_IP:-127.0.0.1}
export NO_PROXY="${no_proxy}"

然后再执行子 skill 中的 lm_eval 命令,例如:

lm_eval --model local-completions \
  --model_args "model=${MODEL_NAME},base_url=${BASE_URL},num_concurrent=64,max_retries=3,tokenized_requests=False,tokenizer=${MODEL_DIR}" \
  --tasks gsm8k \
  --batch_size 64 \
  --confirm_run_unsafe_code

使用前检查

  • 先确认对应数据集和 tokenizer 已经在本地缓存中;如果离线模式报缓存缺失,再切回在线模式补齐缓存。
  • 精度评测前仍然要先做一次 curl warmup,确认服务端已经可用。
  • 如果只是压测吞吐,不要用 lm_eval;使用轻量 benchmark client,避免 lm_eval 的 task/dataset/metric 初始化成本。
  • 记录结果时要把是否启用了离线缓存写入 summary/log,方便比较不同轮次。

已验证现象

在本机 Qwen3.5-0.8B 普通服务上,lm_eval --limit 1 实测:

模式耗时
默认在线探测约 123s
离线缓存模式约 20s

因此,除非有明确理由,skills/test_model 下的 lm_eval 测试都应默认启用离线缓存变量。