Observed arrival · 2026-09-24
phaselock: performance as a compile-time property
phaselock describes an exact-cycle computing stack combining a VLIW processor, a deterministic language, and a unikernel.
- For
- Developers working on latency-critical systems
- Worth noticing
- The component table labels scope and np finished, phi's compiler in progress, and carrier planned but unimplemented.
Field notes
The page frames predictability as the trade: quartz removes caches, branch prediction, interlocks, and interrupts, while phi is described as a language for deterministic parallel execution. Its component table gives a useful snapshot of project maturity: the scope simulator and np framework are marked finished, quartz mostly done, phi's compiler in progress, and carrier planned but unimplemented. The shown 94-cycle example is presented as a result of fixed instruction latencies, not as a benchmark average.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
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