perf: replace AccAddress.String() mutex+LRU with sync.Map#2902
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perf: replace AccAddress.String() mutex+LRU with sync.Map#2902
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AccAddress.String() uses a global sync.Mutex to protect a simplelru.LRU cache. Under OCC with many goroutines, this serializes all bech32 lookups even on cache hits (LRU.Get modifies ordering, requiring a write lock). The mutex profile shows 26.79s (6.66%) of contention on this path, primarily from bank keeper event emission (AddCoins, Transfer, BuyGas). Replace with sync.Map which provides lock-free reads for cache hits. The tradeoff is losing LRU eviction, but practical address cardinality is bounded by on-chain accounts (similar order as the old 60k cap). Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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The latest Buf updates on your PR. Results from workflow Buf / buf (pull_request).
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Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #2902 +/- ##
==========================================
+ Coverage 57.21% 57.24% +0.02%
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Files 2093 2093
Lines 171755 171732 -23
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+ Hits 98276 98312 +36
+ Misses 64709 64667 -42
+ Partials 8770 8753 -17
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| // Slow path: compute bech32 and store with a stable key copy. | ||
| bech32Addr, err := bech32.ConvertAndEncode(GetConfig().GetBech32AccountAddrPrefix(), aa) | ||
| if err != nil { | ||
| panic(err) |
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Code scanning / CodeQL
Panic in BeginBock or EndBlock consensus methods Warning
pdrobnjak
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Feb 17, 2026
Cosmos-level events (coin_spent, coin_received, transfer, etc.) emitted during giga executor tx execution are never consumed: the ExecTxResult is built without populating the Events field, and events are not consensus-critical (stripped from deterministicExecTxResult). EVM logs (Solidity events) flow through a completely separate path (tempState.logs -> receipts + MsgEVMTransactionResponse) and are unaffected. When GIGA_SUPPRESS_COSMOS_EVENTS=true: - EventManager.EmitEvent/EmitEvents return immediately (no mutex, no append, no bech32 encoding in event attributes) - Snapshot() creates suppressed EventManagers - Finalize() skips the flushEvents() consolidation loop This eliminates ~55s of mutex contention per 30s profile window: - AccAddress.String() bech32 cache mutex: ~27s - EventManager.EmitEvents RWMutex: ~28s Also updates benchmark/analysis/ with findings from the AccAddress.String sync.Map optimization (PR #2902) and this event suppression discovery. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
sync.Mutex+simplelru.LRUinAccAddress.String()withsync.Mapfor lock-free readsContext
AccAddress.String()converts raw address bytes to bech32 encoding. The existing implementation uses a globalsync.Mutexto protect asimplelru.LRUcache. Even cache hits require a write lock becauseLRU.Get()modifies the recency ordering.Under OCC with many goroutines executing EVM transactions concurrently, this global mutex serializes all bech32 lookups across all worker goroutines, showing up as 26.79s (6.66%) in the mutex contention profile.
Change
Replace with
sync.Mapwhich provides:The tradeoff is losing LRU eviction, but practical address cardinality is bounded by on-chain accounts (similar order as the old 60k entry cap), so memory growth is bounded.
Benchmark Results
Mutex contention diff (focused on
AccAddress.String): -41.55s eliminatedTest plan
go test ./sei-cosmos/types/... -run 'Addr|Bech32|Address'— all passgofmt -s -l— clean🤖 Generated with Claude Code