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Track PBO fences per upload slot and wait only when a slot is reused, allowing rendering to proceed without a CPU stall. Use GPU-side waits for cross-context DMABUF synchronization. Also propagate KVMFR write-completion failures so incomplete shared-memory frames are never submitted, while retaining incremental damage-copy waits to avoid added latency.
Looking Glass
An extremely low latency KVMFR (KVM FrameRelay) implementation for guests with VGA PCI Passthrough.
- Project Website: https://looking-glass.io
- Documentation: https://looking-glass.io/docs
Documentation
❕❕❕ IMPORTANT ❕❕❕
This project contains submodules that must be checked out if building from the git repository! If you are not a developer and just want to compile Looking Glass, please download the source archive from the website instead:
https://looking-glass.io/downloads
Source code for the documentation can be found in the /doc directory.
You may view this locally as HTML by running make html with python3-sphinx
and python3-sphinx-rtd-theme installed.