Kpa-clawbot 45991eca09 perf: combine chained filterPackets passes into single scan (#592) ...

## Summary

Combines the chained `filterTxSlice` calls in `filterPackets()` into a
single pass over the packet slice.

## Problem

When multiple filter parameters are specified (e.g.,
`type=4&route=1&since=...&until=...`), each filter created a new
intermediate `[]*StoreTx` slice. With N filters, this meant N separate
scans and N-1 unnecessary allocations.

## Fix

All filter predicates (type, route, observer, hash, since, until,
region, node) are pre-computed before the loop, then evaluated in a
single `filterTxSlice` call. This eliminates all intermediate
allocations.

**Preserved behavior:**
- Fast-path index lookups for hash-only and observer-only queries remain
unchanged
- Node-only fast-path via `byNode` index preserved
- All existing filter semantics maintained (same comparison operators,
same null checks)

**Complexity:** Single `O(n)` pass regardless of how many filters are
active, vs previous `O(n * k)` where k = number of active filters (each
pass is O(n) but allocates).

## Testing

All existing tests pass (`cd cmd/server && go test ./...`).

Fixes #373

Co-authored-by: you <you@example.com>

2026-04-04 10:38:10 -07:00

..

ingestor

test: push ingestor coverage from 70% to 84% (#344) (#492)

2026-04-02 17:31:47 -07:00

server

perf: combine chained filterPackets passes into single scan (#592)

2026-04-04 10:38:10 -07:00