cpu: idle detection/park as a selectable feature (idle-pause, off by default)#30
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…y default) The guest-idle-loop detection that sleeps the CPU thread instead of spinning the host core is now behind the `idle-pause` cargo feature rather than always compiled in. Off by default (CPU spins; simplest for deterministic-clock and raw-benchmark builds); opt in with --features idle-pause. When compiled in, the IRIS_NO_IDLE env var still disables it at runtime. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Puts the guest-idle-loop detection that sleeps the CPU thread (instead of spinning the host core) behind a cargo feature,
idle-pause, rather than always compiling it in.--features idle-pause.IRIS_NO_IDLEenv var still disables it at runtime.#[cfg(feature = "idle-pause")]inmips_exec.rs; no dead code or unused-variable warnings when off.Rebased cleanly onto current main (the
Cargo.tomlfeature-list addition sits alongside the r5k cache features;default = ["tlbvmap"]unchanged).🤖 Generated with Claude Code