Research 137: the batch executor's stage 4 (columns read in place, comparisons counting their lanes): knapsack 10.07 to 8.25 ms (bar 8.6; b9 11.46, the compiled code 7.9), its instructions 12.2% below b9's; what is left of knapsack's gap is the per-batch interpretation (about 3 ms), not the kernels (ADD 1.7, GT 1.7, the masked set 0.55 ms); the others the same by instructions; make check's server_view_workers timed out once (the known flake), passed 3/3 alone and in a full rerun; bank queries' instructions within 0.1% of b9's, TPC-C -0.3%; the two large gaps left (matmul's nested rounds, BFS's candidate tail) the user's to choose

1 files changed, 20 insertions, 0 deletions

diff --git a/research/experiments/041-batches/2026-10-08-counts.jsonl b/research/experiments/041-batches/2026-10-08-counts.jsonl
index 6770a54..5bb8e6b 100644
--- a/research/experiments/041-batches/2026-10-08-counts.jsonl
+++ b/research/experiments/041-batches/2026-10-08-counts.jsonl
@@ -76,3 +76,23 @@
 {"version":"b14","way":"rounds","work":"roots","instructions":2755945510,"cycles":988490613}
 {"version":"b14","way":"batches","work":"join","instructions":1868676355,"cycles":1061229557}
 {"version":"b14","way":"rounds","work":"join","instructions":7669661592,"cycles":3636019220}
+{"version":"b15","way":"batches","work":"bfs","instructions":3371358070,"cycles":1683804989}
+{"version":"b15","way":"rounds","work":"bfs","instructions":4711632364,"cycles":2087134781}
+{"version":"b15","way":"batches","work":"knapsack","instructions":357414055,"cycles":109729574}
+{"version":"b15","way":"rounds","work":"knapsack","instructions":21688102863,"cycles":7528408912}
+{"version":"b15","way":"batches","work":"matmul","instructions":720247202,"cycles":243561132}
+{"version":"b15","way":"rounds","work":"matmul","instructions":21436716299,"cycles":6630665371}
+{"version":"b15","way":"batches","work":"roots","instructions":156241313,"cycles":109812551}
+{"version":"b15","way":"rounds","work":"roots","instructions":2755945292,"cycles":988027768}
+{"version":"b15","way":"batches","work":"join","instructions":1868826897,"cycles":1041548501}
+{"version":"b15","way":"rounds","work":"join","instructions":7669661601,"cycles":3304217300}
+{"version":"b16","way":"batches","work":"bfs","instructions":3367374257,"cycles":1666713364}
+{"version":"b16","way":"rounds","work":"bfs","instructions":4715633080,"cycles":2082051266}
+{"version":"b16","way":"batches","work":"knapsack","instructions":346367086,"cycles":104749065}
+{"version":"b16","way":"rounds","work":"knapsack","instructions":21688103028,"cycles":7527793245}
+{"version":"b16","way":"batches","work":"matmul","instructions":721446061,"cycles":243482270}
+{"version":"b16","way":"rounds","work":"matmul","instructions":21436715945,"cycles":6622413130}
+{"version":"b16","way":"batches","work":"roots","instructions":156268817,"cycles":109368110}
+{"version":"b16","way":"rounds","work":"roots","instructions":2755945309,"cycles":988094407}
+{"version":"b16","way":"batches","work":"join","instructions":1868827170,"cycles":1071752635}
+{"version":"b16","way":"rounds","work":"join","instructions":7669661710,"cycles":3289647015}