=== Scale 10000 (chunk=500, parallel=8) ===
Backend: clickhouse, Scale: 10000 worlds, Environment: local-docker
Streaming mode: totalWorlds=10000, chunkSize=500, parallelWorlds=8, channelCapacity=16
PBP sink: local at ./pbp-parquet-10k-parallel

Streaming Run Report
--------------------
Total wall time:         2548.07 s
Simulation time:         1062.27 s
OC write time:            492.38 s
PBP write time:           741.17 s
Merge time:               136.34 s
Peak working set:        18616.8 MB
Chunks completed:             20
OC rows (merged):        244,800
PBP rows (written):   419,764,201
