b12188

server: visit parent slots before child slots (#30779)

• server: visit parent slots before child slots
  A parent slot wakes its waiting child slots once it finishes the shared
  prompt prefix, while slots are visited in id order. When a child task
  lands on a lower slot id than its parent, the child is visited before
  the parent wakes it and waits an extra batch to process its suffix.
  Non-child slots are now visited before active child slots, so every
  child woken by its parent joins the same batch.

• server: check systemone test events through test tags

The systemone tests matched free-form debug messages, including the
formatted f_keep value of the prompt cache. The server now emits
TEST_TAG_WAIT_PARENT_SLOT when a child slot waits for its parent,
TEST_TAG_PROMPT_CACHE_RESTORE on every prompt cache restore and
TEST_TAG_PROMPT_CACHE_FULL_RESTORE when the whole cached prompt is
a prefix of the new one, compared on token counts.

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Co-authored-by: Pascal admin@serveurperso.com

Website:

• https://llama.app

Attestations:

• https://github.com/ggml-org/llama.cpp/attestations/64833265

macOS/iOS:

• macOS Apple Silicon (arm64)
• macOS Apple Silicon (arm64, KleidiAI enabled) DISABLED
• macOS Intel (x64)
• iOS XCFramework

Linux:

• Ubuntu x64 (CPU)
• Ubuntu arm64 (CPU)
• Ubuntu s390x (CPU)
• Ubuntu 26.04 s390x (CPU)
• Ubuntu 26.04 s390x (zDNN)
• Ubuntu x64 (Vulkan)
• Ubuntu arm64 (Vulkan)
• Ubuntu x64 (CUDA 12) - CUDA 12.8 libraries
• Ubuntu x64 (CUDA 13) - CUDA 13.5 libraries
• Ubuntu arm64 (CUDA 13) - CUDA 13.5 libraries
• Ubuntu x64 (ROCm 10.0)
• Ubuntu x64 (OpenVINO)
• Ubuntu x64 (SYCL FP32)
• Ubuntu x64 (SYCL FP16)
• Linux arm64 (Snapdragon: CPU, Adreno GPU, Hexagon NPU) - setup guide

Android:

• Android arm64 (CPU)
• Android arm64 (Snapdragon: CPU, Adreno GPU, Hexagon NPU) - setup guide

Windows:

• Windows x64 (CPU)
• Windows arm64 (CPU)
• Windows arm64 (OpenCL Adreno)
• Windows x64 (CUDA 12) - CUDA 12.4 DLLs
• Windows x64 (CUDA 13) - CUDA 13.5 DLLs
• Windows arm64 (CUDA 13) - CUDA 13.5 DLLs
• Windows x64 (Vulkan)
• Windows arm64 (Vulkan)
• Windows x64 (OpenVINO)
• Windows x64 (SYCL)
• Windows x64 (ROCm 10.0)

openEuler:

• DISABLED
• openEuler x86 (310p)
• openEuler x86 (910b, ACL Graph)
• openEuler aarch64 (310p)
• openEuler aarch64 (910b, ACL Graph)

UI:

• UI