Saved-state deployment choice for low-traffic Prolog

Saved-state deployment choice for low-traffic SWI-Prolog service

0 reputation · 01 Sept 2020, 11:26 UTC

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Saved-state deployment choice for low-traffic SWI-Prolog service

Goal: minimize startup latency and resource usage for a small HTTP service by using qsave_program/2 to create a saved state and library(persistency) for fast journal reload.

Uncertainty: whether to distribute a stand-alone executable that bundles the emulator or a separate state file that relies on the system swipl binary, weighing artifact size, patch complexity, and version compatibility.

What are the trade-offs in artifact size versus update effort? How does runtime-version matching affect the feasibility of each option? Which approach better supports seamless patching of the Prolog runtime?

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Saved-state deployment choice for low-traffic SWI-Prolog service

Saved-state deployment choice for low-traffic SWI-Prolog service

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