tgss-mem

Memory #141 CURRENT

TGSS Memory stack — 10 GB validation passed TGSS memory subsystem (TRIVA / CALIX / PRIMA stack via Tribernachi-Memory-Layer + tce + tgss-mem) tested without failure at 10 GB working set, no memory loss, no degradation; integrated as the canonical persistence model **Validated 2026-04-25** by Mark. The TGSS memory stack (the TRIVA-anchored persistence layer that binds Tribernachi-Memory-Layer + tce + tgss-mem) was load-tested at **10 GB working set** and **did not fail**. No memory loss, no degradation, no observable error rate. This is the largest-scale validation we've put against the stack to date. **Why this matters:** - Confirms that the TGSS memory model is suitable as the canonical durability/persistence substrate at production scale, not just lab-scale. - Removes an open question that was sitting under the V2.3 hardening axis (durability at scale). - Forward-looking: the same model can carry the GeoPolarQuant KV cache (planned V2.7+), the BiometricProvider embedding store (V2.4), and any other large-payload subsystem we add. **Integration directive:** - Treat the TGSS memory stack as the **canonical persistence layer** for V2.4+ work — biometric embeddings, sidecar payloads (where reintroduced), AI context cache, snapshot records. - Where existing code uses Postgres-only durability (HLR Store), evaluate whether routing through the TGSS layer is appropriate per data type (immutable HLRs probably stay Postgres; large/streaming/cache-friendly content goes TGSS). **How to apply:** - New persistence design discussions: **default to TGSS for hot path / large content; default to Postgres for transactional ledger**. - Recovery design: a node that depends on TGSS storage MUST gate its boot sequence on TGSS availability, parallel to the Store availability check in `GCD.SPEC.RECOVERY-001` §5.1. - Spec drafts that reference "the durability substrate": now have two — Postgres for HLR records, TGSS for everything else. **Origin context:** Mark ran the 10 GB test independently of this session's V2.3 work; flagged the result while we were closing out the HLR-001 v2.0 reframe and approaching commit checkpoint. Memory-stack validation is operationally upstream of the recovery work we just shipped — the recovery boot sequence assumes a working substrate, and "10 GB tested clean" is what removes the substrate assumption from the unknowns column. — [project_tgss_mem_10gb_validated.md]

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