041 runs of stages 4 and 5, sums into cells and walks (b3 = 06c2978, b4 = c67f988): batches join 161.2 ms (the compiled code 74.4, alone 423.4), matmul 46.1, knapsack 15.1, roots 9.22; costs/: small modules timed three ways (an instruction about 20 ns a batch, a sum's end about 4 ns a round, an append about 100 ns as the executor's, the nested rounds 10.2 ms against the compiled code's 23.1)

1 files changed, 18 insertions, 0 deletions

diff --git a/research/experiments/041-batches/2026-10-06-counts.jsonl b/research/experiments/041-batches/2026-10-06-counts.jsonl
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--- /dev/null
+++ b/research/experiments/041-batches/2026-10-06-counts.jsonl
@@ -0,0 +1,18 @@
+{"version":"b4","way":"batches","work":"roots","instructions":174812996,"cycles":116300312}
+{"version":"b4","way":"rounds","work":"roots","instructions":2755943829,"cycles":985748055}
+{"version":"b4","way":"batches","work":"knapsack","instructions":471749720,"cycles":154056238}
+{"version":"b4","way":"rounds","work":"knapsack","instructions":21688101139,"cycles":7513230331}
+{"version":"b4","way":"batches","work":"matmul","instructions":1117876516,"cycles":385967411}
+{"version":"b4","way":"rounds","work":"matmul","instructions":21436714750,"cycles":6632724612}
+{"version":"b4","way":"batches","work":"join","instructions":2876521101,"cycles":1500400541}
+{"version":"b4","way":"rounds","work":"join","instructions":7669659869,"cycles":3304178680}
+{"version":"b4","way":"batches","work":"sort","instructions":1408924934,"cycles":719666807}
+{"version":"b4","way":"rounds","work":"sort","instructions":1502633497,"cycles":738355498}
+{"version":"b4","way":"batches","work":"bfs","instructions":4670614416,"cycles":2053736393}
+{"version":"b4","way":"rounds","work":"bfs","instructions":4711632423,"cycles":2070220219}
+{"version":"b4","way":"batches","work":"words","instructions":3982156087,"cycles":1814863023}
+{"version":"b4","way":"rounds","work":"words","instructions":3934432246,"cycles":1808074002}
+{"version":"b3","way":"batches","work":"knapsack","instructions":471442324,"cycles":151426342}
+{"version":"b3","way":"rounds","work":"knapsack","instructions":21687950586,"cycles":7519105382}
+{"version":"b3","way":"batches","work":"join","instructions":2873143374,"cycles":1417125863}
+{"version":"b3","way":"rounds","work":"join","instructions":7669059562,"cycles":3258928332}