Siavash Sameni a52b011fb5 feat(relay): replace global Mutex<RoomManager> with DashMap sharding ...

Eliminates the single-lock bottleneck for media forwarding. Before:
all participants across all rooms competed for one Mutex. Now rooms
are stored in DashMap (64 internal shards with per-shard RwLocks).

Changes:
- RoomManager.rooms: HashMap → DashMap<String, Room>
- Per-room quality tracking (qualities, current_tier moved into Room)
- Arc<Mutex<RoomManager>> → Arc<RoomManager> everywhere
- 20 .lock().await sites removed across room.rs, main.rs, federation.rs, ws.rs
- federation forward_to_peers: clone peer list, release lock, then send
- ACL uses std::sync::Mutex (rarely accessed, non-async)

Concurrency improvement:
- Before: 100 rooms × 10 people = 1000 tasks → 1 Mutex
- After: distributed across 64 DashMap shards, ~15 tasks per shard avg
- Rooms are fully independent — room A never blocks room B

314 tests passing, 0 regressions.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

2026-04-13 12:17:57 +04:00

..

android

docs: incident report + fix spec for capture thread use-after-free crash

2026-04-06 09:21:35 +00:00

ADMINISTRATION.md

docs: add BRANCH-desktop-audio-rewrite.md and update ARCH/ADMIN/USER_GUIDE

2026-04-10 15:20:21 +04:00

API.md

docs: comprehensive project documentation

2026-03-28 05:30:11 +04:00

ARCHITECTURE.md

docs: relay concurrency model, Opus6k fix, build script fixes

2026-04-13 11:54:37 +04:00

BRANCH-desktop-audio-rewrite.md

docs: add BRANCH-desktop-audio-rewrite.md and update ARCH/ADMIN/USER_GUIDE

2026-04-10 15:20:21 +04:00

DESIGN.md

docs: update DESIGN, ARCHITECTURE, PRDs, PROGRESS for BT + network + build changes

2026-04-12 17:39:59 +04:00

EXTENSIBILITY.md

docs: comprehensive project documentation

2026-03-28 05:30:11 +04:00

FEATHERCHAT_INTEGRATION.md

fix: align HKDF info strings with featherChat identity derivation

2026-03-28 08:16:57 +04:00

featherchat.md

feat: WarzonePhone lossy VoIP protocol — Phase 1 complete

2026-03-27 12:45:07 +04:00

grafana-dashboard.json

feat: probe mesh mode + Grafana dashboard (T5-S6/S7) — completes T5

2026-03-28 13:18:50 +04:00

INTEGRATION_TASKS.md

feat: P3-T4 relay presence registry — gossip fingerprints across relay mesh

2026-03-29 17:36:55 +04:00

PRD-adaptive-quality.md

docs: update PROGRESS, PRDs for completed tasks #9, #11, #12, #27

2026-04-13 11:34:01 +04:00

PRD-bluetooth-audio.md

docs: update DESIGN, ARCHITECTURE, PRDs, PROGRESS for BT + network + build changes

2026-04-12 17:39:59 +04:00

PRD-coordinated-codec.md

docs: update PROGRESS, PRDs for completed tasks #9, #11, #12, #27

2026-04-13 11:34:01 +04:00

PRD-delegated-trust.md

docs: PRD for delegated trust in relay federation

2026-04-08 10:00:21 +04:00

PRD-dred-integration.md

docs: relay concurrency model, Opus6k fix, build script fixes

2026-04-13 11:54:37 +04:00

PRD-local-recording.md

docs: PRDs for local recording + mixer and studio quality tiers

2026-04-07 18:32:24 +04:00

PRD-mtu-discovery.md

feat(dred): continuous DRED tuning, PMTUD, extended Opus6k window

2026-04-12 19:38:37 +04:00

PRD-network-awareness.md

fix(relay): debug tap signal logging, dual_path test regression, PRD updates

2026-04-13 09:54:52 +04:00

PRD-p2p-direct.md

fix(relay): debug tap signal logging, dual_path test regression, PRD updates

2026-04-13 09:54:52 +04:00

PRD-protocol-analyzer.md

fix(relay): debug tap signal logging, dual_path test regression, PRD updates

2026-04-13 09:54:52 +04:00

PRD-relay-concurrency.md

feat(relay): replace global Mutex<RoomManager> with DashMap sharding

2026-04-13 12:17:57 +04:00

PRD-relay-federation.md

docs: PRD for relay federation (multi-relay mesh) + identity fix

2026-04-07 21:33:05 +04:00

PRD-studio-quality.md

docs: PRDs for local recording + mixer and studio quality tiers

2026-04-07 18:32:24 +04:00

PROGRESS.md

docs: relay concurrency model, Opus6k fix, build script fixes

2026-04-13 11:54:37 +04:00

TELEMETRY.md

docs: telemetry & observability design — Prometheus, probes, Grafana

2026-03-28 10:29:17 +04:00

USAGE.md

docs: comprehensive project documentation

2026-03-28 05:30:11 +04:00

USER_GUIDE.md

docs: add BRANCH-desktop-audio-rewrite.md and update ARCH/ADMIN/USER_GUIDE

2026-04-10 15:20:21 +04:00

WS_RELAY_SPEC.md

docs: WS relay spec — add WebSocket listener to eliminate wzp-web bridge

2026-03-30 14:27:52 +04:00

WZP-FC-SHARED-CRATES.md

docs: shared crate strategy for WZP ↔ featherChat interop

2026-03-28 09:14:25 +04:00