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feat(opt21-25): v1.3.0 重放源码集(NTK/MTP/并发/KV/工具调用/anthropic 增强) - #241

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ChainZeaxion:opt21-25-v130-src-pr
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1CatAI:mainfrom
ChainZeaxion:opt21-25-v130-src-pr

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说明

基于 v1.3.0 源码完整重放 opt21-25 全部改动(22 个文件,2364 行新增)。本次直接提供源码,无需 patch apply,git clone 分支后可直接部署。

来源:zxvllm120 生产环境实测(535.183.01 驱动 / 内核 6.8.0-31 / 4×V100)。


⚠️ 本 PR 是源码提交(不是 patch 文件)

  • 本分支 opt21-25-v130-src-pr 上包含 vllm/ 源码的直接改动
  • clone 后 vllm/ 目录可直接替换部署,无需 patch apply
  • 如果你需要 patch 文件,请参考 patches/ 目录(单独 patch + 总 patch)

改动项

opt21 + opt25(基础增强)

  • keepalive 5→600s;启动日志持久化;STREAM_KEEPALIVE(双层保活)
  • API 能力发现端点;Auto-Dynamic NTK;MTP 安全检测
  • anthropic msg_id/type-role/HEAD 路由

opt22(工具调用增强)

  • qwen3coder_tool_parser(1943行)+ qwen3xml_tool_parser(1680行)整体替换
  • fix=1 默认启用;兼容 v1.0 tools[].function 嵌套格式

opt23(并发调度)

  • long_prefill 自动配置;GPU-LRU 多并发(per_rank_tail=384 total=1536)
  • MTP 全档(0/1/2/3/4)+ fused 降级

opt24(Drafter 对齐 + NTK 默认)

  • Drafter max_position_embeddings 对齐 target;NTK yarn factor=2.0 默认启用
  • 实测:280K tokens(280010 / 162s)/ 320K tokens(198s)不再崩溃

KV cache warm block

  • Warm Block 时间倒排回收(P25/P50/P80 分级)

anthropic cache_read_input_tokens

  • 返回真实 cache 命中数据

实测数据(4×V100)

测试 结果
280K tokens 280010 tokens / 162s / EngineDeadError 0
320K tokens 320010 tokens / 198s
MTP0/1/2/3/4 全部 fused
8 并发平方测试 10.6/22.8s 全部通过

使用方式

git clone https://github.com/ChainZeaxion/1Cat-VLLM.git
git checkout opt21-25-v130-src-pr
cp -r vllm/* /path/to/v1.3.0/site-packages/vllm/

环境依赖

  • vLLM v1.3.0(tag);驱动 ≥535;内核 ≥6.8
  • GPU:V100/A100/H100(sm_70+);CUDA ≥12.4;Python 3.12

基于 v1.3.0 源码完整重放 opt21-25:
- opt21+25: keepalive 5→600、启动日志持久化、STREAM_KEEPALIVE 双层保活、API 能力发现、Auto-Dynamic NTK、MTP 安全检测、anthropic msg_id/type-role/HEAD
- opt22: qwen3coder_tool_parser(1943行)+qwen3xml_tool_parser(1680行)整体替换、双格式工具调用、fix=1默认
- opt23: long_prefill自动配置、GPU-LRU多并发(per_rank_tail=384 total=1536)、MTP全档(0/1/2/3/4)+fused降级
- opt24: Drafter max_position_embeddings对齐target、NTK默认启用(yarn factor=2.0)
- KV缓存: Warm Block时间倒排回收+P25/P50/P80时限配置
- anthropic: cache_read_input_tokens真实返回

实测:280K上下文稳定、8并发全对、MTP4/0全档验证、V100×4/FP8+FLASH_ATTN_V100
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👋 Hi! Thank you for contributing to the vLLM project.

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@yangzhuxinyzx yangzhuxinyzx left a comment

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这个 PR 目前不能合并。它把多个互不相关且会改变全局默认行为的功能一次性重放到当前 main;源码审计和现有小型测试已经得到以下合并阻塞项:

  1. 工具解析器回归。现有用例 tests/tool_parsers/test_qwen3coder_tool_parser.py::test_extract_tool_calls_streaming_missing_closing_tag[original-chat_completion] 失败:city 预期为 Dallas,实际被解析成 Dallas + <parameter=state> + TX。这与 #236 中已确认的回归相同;同时解析器仍包含写 /tmp/log/vllm-tool-log.txt 的调试文件句柄。

  2. Auto Dynamic NTK 删除了 VLLM_ALLOW_LONG_MAX_MODEL_LEN 的安全门,并对所有模型自动放行到 524288。对于没有可安全扩展 RoPE 的模型,这会放行源码原本明确警告可能 CUDA OOB 的长度。现有 tests/test_config.py::test_get_and_verify_max_len 有 2/5 失败:绝对位置编码的 BAAI/bge-reranker-base 现在错误接受 513 > 512,Qwen 用例也不再按契约拒绝。请保留显式 opt-in,并只对经过模型/rope 类型验证的配置做扩展。

  3. keepalive 放错了层级。AsyncLLM.generate() 每 15 秒向所有消费者 yield 一个 outputs=[] 的 STREAM_KEEPALIVE,但全项目只有 Chat Completions 识别该哨兵。Responses 的 ConversationContext.append_output()、beam search 以及其他直接 engine_client.generate() 消费者会把它当真实 RequestOutput;其中多个路径立即访问 outputs[0],会在慢请求上报错或使用空结果。keepalive 应留在 HTTP/SSE 传输层,或必须有覆盖所有消费者的完整协议设计和测试。

  4. warm-block 改写了 BlockPool 的核心空闲队列契约,但没有同步现有契约和测试。tests/v1/core/test_prefix_caching.py 当前 5 个失败(80 个通过),包括 prefill、prompt-logprobs、evict 和不足空闲块路径。请先证明新的 warm/free 双队列在分配、触碰、显式 evict、reset、事件和连接器路径上的一致性,并补齐测试;这类核心改动应单独提交。

  5. 变更本身不满足静态门禁:Ruff 0.14.0 报 30 个错误,12 个 Python 文件需重新格式化;git diff --check 在提交的 patch 文件中报告大量尾随空格/EOF 问题。PR 还同时提交约 7200 行重复 patch 产物和已直接应用的源码,造成双份实现与审计噪声。

另外,底层固定 /tmp 缓存/启动日志默认、全局 catch-all HEAD=200、按 80/20 等比例猜测 context_window/max_output_tokens 都是独立的全局 API/安全语义变化,不应夹在同一个生产重放包中。

建议按 NTK、工具解析、keepalive、KV warm block、MTP 并发分别拆成小 PR;每个 PR 先保持当前 main 的既有契约和现有测试全绿,再提供对应的定向测试。此次按约定没有重复昂贵的模型端到端测试。

@yangzhuxinyzx

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Current-main revalidation on exact head 463406253a7cb57d320ef652288fb48fc2084b87: the existing CHANGES_REQUESTED remains.

Focused tests reproduce three merge blockers: the malformed streaming tool-call test fails, and two get_and_verify_max_len safety cases incorrectly stop raising for absolute-position and Qwen limits (3 failed, 3 passed). Ruff 0.14 reports 30 errors and 12 changed files need formatting. Full-range git diff --check also fails on trailing whitespace in the bundled patch files, and both PR commits lack Signed-off-by trailers. The merge-tree is clean, but the source is not eligible for merge.

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源码审计结论:不整包合并。该 PR 基于旧 v1.3.0 快照,把 NTK 默认、MTP/并发调度、KV 回收、API/Anthropic 行为和工具解析等多个独立风险域绑在一起,同时提交 10 份 patch 副本与同内容源码(大量重复行),没有对应聚焦测试;其中默认 Yarn factor、固定 tail 容量、长 keepalive 等也不是可泛化的硬件/算子/配置契约。两个提交均缺少仓库要求的 DCO sign-off。工具解析已有独立 #236,其他仍有效的叶子请从最新 main 按单一问题重开、补测试和 DCO;已被后续主线实现覆盖的部分无需重复回放。

@1CatAI 1CatAI locked and limited conversation to collaborators Aug 26, 2026
@1CatAI 1CatAI unlocked this conversation Aug 27, 2026
@yangzhuxinyzx yangzhuxinyzx reopened this Aug 27, 2026
@yangzhuxinyzx
yangzhuxinyzx marked this pull request as draft August 27, 2026 14:46
@yangzhuxinyzx

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公开开发已恢复:本 PR 已取消归档、解锁并重新打开。为避免把旧基线上的问题直接带入最新 main,现统一作为 Draft 审计项;恢复可见性不代表已经批准合并。 该组属于旧版功能/重放实现,需先与当前主线及同类 PR 去重,提取仍有价值的通用推理引擎改动,再做聚焦源码与质量验证。

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Final current-main audit at main@18b0b44e06fae1b0e18ee48ef1ccdb2573835d13: keep Open/Draft; no part of this old replay bundle is eligible for an aggregate merge into 1.5.0.

The previously reproduced blockers remain source-owned and are not base-staleness artifacts:

  • automatic NTK bypasses the explicit long-context safety gate and incorrectly permits absolute-position/Qwen limit cases that must raise;
  • the worker changes an invalid non-tensor draft state from a fail-closed error into a silent return, allowing scheduled draft slots to retain stale inputs;
  • the tool-parser copy still merges a following <parameter=...> tag into the prior value, writes request/tool fragments to a fixed /tmp log, carries hot-reload/debug code, and defaults the behavior on;
  • fixed 25% long-prefill/65:35 scheduling, fixed GPU-LRU tail sizing, 600-second keepalive, and default Yarn factors are workload policies rather than validated generic engine contracts;
  • the warm-block layer duplicates the existing prefix-cache eviction queue, then immediately reclaims oldest entries in its fallback phase; it has no matched baseline proving the claimed hit-rate gain and adds a second block-state invariant;
  • source and ten patch copies duplicate the same changes, while all commits remain unsigned and focused tests are absent.

Several ideas are already handled more safely in current main (MTP capability validation, current parser regressions, prefix-cache LRU/retention work, long-context controls). The remaining unique ideas need one-problem latest-main PRs with tests and matched evidence; replaying this 33-file bundle would bring old bugs into the release branch.

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