Linear Group — research notes
Notes on low-level systems and GPUs: inference, memory, and the hardware underneath.
https://lineargp.com/
2026-08-20T11:11:09-05:00
John Rose
john@lineargp.com
https://lineargp.com/
© 2026 Linear Group LLC
SACC: A Synthetic PCIe Accelerator
https://lineargp.com/notes/2026-08-synthetic-pcie/
2026-08-01T00:00:00Z
2026-08-20T11:11:09-05:00
Building a synthetic PCIe accelerator — QEMU device model plus Linux driver — to instrument kernel-bypass submission paths from both sides.
RDMA over Ethernet (RoCE) for Disaggregated Inference
https://lineargp.com/notes/2026-07-rdma-roce/
2026-07-01T00:00:00Z
2026-08-05T11:22:28-05:00
Moving a Qwen KV cache over RDMA/RoCE for disaggregated prefill/decode.
GPU Passthrough: VFIO, IOMMU, and Thermal Debug
https://lineargp.com/notes/2026-07-gpu-passthrough/
2026-07-01T00:00:00Z
2026-08-05T11:22:28-05:00
Passing an NVIDIA RTX 4070 Ti SUPER through to a KVM guest on an AMD host, headless, start to finish.