Remote Execution for Windows + Q&A
summary
Prototype remote execution runs MSBuild (and other engines) by wrapping cl.exe, uploading inputs to a CAS and virtualizing drive paths with ProjectedFS/GVFS and a new Windows path remapping driver. Internal rollout shows about 40% savings on a OneDrive C++ repo, a demo reached 700 agents, and stdout/stderr stream live. A two-way extension lets agents request missing files from the client; roadmap includes two-phase cache lookup and open sourcing CAS/byte-stream pieces like CAS byte-stream.
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