wal-bench
storage / sqlite
Reproducible micro-benchmarks measuring SQLite WAL checkpoint stalls, synchronous=NORMAL vs FULL tail latency, and ext4 barrier overhead on commodity NVMe VPS hosts.
Systems notes, storage benchmarks, and small CLI utilities.
Kestrel Labs is a small independent engineering collective focused on predictable Linux tooling, single-node SQLite performance, and deterministic build pipelines.
Active workstreams
sock-trace
networking / linux
Minimal user-space TCP tunnel diagnostics for tracking TLS handshake variance, DNS resolver drift, and keepalive socket exhaustion in long-running sidecar processes.
tree-outline
cli / typescript
Fast file-symbol indexers for large repositories built on single-binary runtimes with zero background daemon state.
Operating notes
- Single-file deployables over multi-container orchestration where traffic fits on one host.
- Measured p99 latencies and wall-clock deltas logged before any storage or parser rewrite.
- Public writeups are published irregularly between client and internal tooling work.