7 files changed, 21 insertions, 5 deletions
diff --git a/research/experiments/040-against-c/2026-10-18-counts-s38.jsonl b/research/experiments/040-against-c/2026-10-18-counts-s38.jsonl
new file mode 100644
index 0000000..1f42341
--- /dev/null
+++ b/research/experiments/040-against-c/2026-10-18-counts-s38.jsonl
@@ -0,0 +1,6 @@
+{"serve": "pure-serve", "per_branch": {"instructions": 26882993, "cycles": 11591444}, "in_credit": {"instructions": 3463530, "cycles": 1578356}, "large": {"instructions": 1431957, "cycles": 606184}, "ranks": {"instructions": 24353508, "cycles": 14592354}, "none": {"instructions": 617958, "cycles": 194299}, "field": {"instructions": 9130366, "cycles": 3276393}, "found": {"instructions": 14283102, "cycles": 10549487}}
+{"serve": "pure-serve", "per_branch": {"instructions": 26981160, "cycles": 11735192}, "in_credit": {"instructions": 3485848, "cycles": 1600650}, "large": {"instructions": 1425150, "cycles": 615394}, "ranks": {"instructions": 24395965, "cycles": 14718379}, "none": {"instructions": 616741, "cycles": 192127}, "field": {"instructions": 9068166, "cycles": 3309134}, "found": {"instructions": 14210927, "cycles": 10867715}}
+{"serve": "pure-serve", "per_branch": {"instructions": 27279333, "cycles": 11875510}, "in_credit": {"instructions": 3552478, "cycles": 1606311}, "large": {"instructions": 1431845, "cycles": 608216}, "ranks": {"instructions": 24571658, "cycles": 14808241}, "none": {"instructions": 617958, "cycles": 190338}, "field": {"instructions": 9130469, "cycles": 3268205}, "found": {"instructions": 14280287, "cycles": 10521880}}
+{"serve": "pure-serve", "per_branch": {"instructions": 27199381, "cycles": 11813156}, "in_credit": {"instructions": 3534764, "cycles": 1608765}, "large": {"instructions": 1425086, "cycles": 608142}, "ranks": {"instructions": 24516404, "cycles": 14877701}, "none": {"instructions": 616741, "cycles": 190908}, "field": {"instructions": 9068063, "cycles": 3313632}, "found": {"instructions": 14207590, "cycles": 10633858}}
+{"serve": "pure-serve", "per_branch": {"instructions": 27230259, "cycles": 11911492}, "in_credit": {"instructions": 3541457, "cycles": 1606705}, "large": {"instructions": 1431789, "cycles": 602954}, "ranks": {"instructions": 24545122, "cycles": 14981424}, "none": {"instructions": 617950, "cycles": 191656}, "field": {"instructions": 9130358, "cycles": 3268257}, "found": {"instructions": 14279831, "cycles": 10508190}}
+{"serve": "pure-serve", "per_branch": {"instructions": 27329624, "cycles": 12359635}, "in_credit": {"instructions": 3563802, "cycles": 2339609}, "large": {"instructions": 1425094, "cycles": 749512}, "ranks": {"instructions": 24586049, "cycles": 15314398}, "none": {"instructions": 616733, "cycles": 190282}, "field": {"instructions": 9068158, "cycles": 3309742}, "found": {"instructions": 14207319, "cycles": 10912495}}
diff --git a/research/experiments/041-batches/2026-10-18-counts.jsonl b/research/experiments/041-batches/2026-10-18-counts.jsonl
index f493618..7b29e36 100644
--- a/research/experiments/041-batches/2026-10-18-counts.jsonl
+++ b/research/experiments/041-batches/2026-10-18-counts.jsonl
@@ -128,3 +128,13 @@
 {"version":"b37","way":"rounds","work":"matmul","instructions":21259969629,"cycles":6204053361}
 {"version":"b37","way":"batches","work":"bfs","instructions":3347488616,"cycles":1663777730}
 {"version":"b37","way":"rounds","work":"bfs","instructions":4709044317,"cycles":2143909347}
+{"version":"b38","way":"batches","work":"roots","instructions":157248661,"cycles":109895799}
+{"version":"b38","way":"rounds","work":"roots","instructions":2719817740,"cycles":1102038842}
+{"version":"b38","way":"batches","work":"knapsack","instructions":348023990,"cycles":106312579}
+{"version":"b38","way":"rounds","work":"knapsack","instructions":22053584918,"cycles":8200983416}
+{"version":"b38","way":"batches","work":"join","instructions":1783615210,"cycles":1338885351}
+{"version":"b38","way":"rounds","work":"join","instructions":7705975089,"cycles":4071828568}
+{"version":"b38","way":"batches","work":"matmul","instructions":702228751,"cycles":227165183}
+{"version":"b38","way":"rounds","work":"matmul","instructions":21163848735,"cycles":7467484636}
+{"version":"b38","way":"batches","work":"bfs","instructions":3339436314,"cycles":1648001735}
+{"version":"b38","way":"rounds","work":"bfs","instructions":4697444852,"cycles":2103018632}
diff --git a/research/experiments/044-specs/append_cost.c b/research/experiments/044-specs/append_cost.c
index a3ef0bb..d91e82e 100644
--- a/research/experiments/044-specs/append_cost.c
+++ b/research/experiments/044-specs/append_cost.c
@@ -9,7 +9,7 @@
 #include <time.h>
 static double now_ns(void) { struct timespec t; clock_gettime(CLOCK_MONOTONIC, &t); return t.tv_sec * 1e9 + t.tv_nsec; }
 int main(int argc, char **argv) {
-    PureModule m; char error[160];
+    PureModule m = {0}; char error[160];
     if (pure_module_read(argv[1], &m, error, sizeof(error)) != PURE_OK) { fprintf(stderr, "%s\n", error); return 1; }
     PureApp app;
     if (pure_app_start(&app, &m, (PureData){0}) != PURE_OK) return 1;
diff --git a/research/experiments/044-specs/json_rec_time.c b/research/experiments/044-specs/json_rec_time.c
index 03c02c4..0d5b225 100644
--- a/research/experiments/044-specs/json_rec_time.c
+++ b/research/experiments/044-specs/json_rec_time.c
@@ -73,7 +73,7 @@ int main(int argc, char **argv) {
         n += (size_t)sprintf(doc + n, "%s{\"key%d\": [1.5e3, true, null, \"text \\u00e9 %d\"]}", k ? "," : "", k, k);
     doc[n++] = ']';
     doc[n] = 0;
-    PureModule module;
+    PureModule module = {0};
     char error[160];
     if (pure_module_read(argv[1], &module, error, sizeof(error)) != PURE_OK) { fprintf(stderr, "%s\n", error); return 1; }
     PureApp app;
diff --git a/research/experiments/044-specs/json_time.c b/research/experiments/044-specs/json_time.c
index b401ece..b4b2eae 100644
--- a/research/experiments/044-specs/json_time.c
+++ b/research/experiments/044-specs/json_time.c
@@ -100,7 +100,7 @@ int main(int argc, char **argv) {
     for (int k = 0; k < 2000; ++k)
         n += (size_t)sprintf((char *)doc + n, "%s{\"key%d\": [1.5e3, true, null, \"text \\u00e9 %d\"]}", k ? "," : "", k, k);
     doc[n++] = ']';
-    PureModule module;
+    PureModule module = {0};
     char error[160];
     if (pure_module_read(argv[1], &module, error, sizeof(error)) != PURE_OK) { fprintf(stderr, "%s\n", error); return 1; }
     PureApp app;
diff --git a/research/experiments/044-specs/json_tree_time.c b/research/experiments/044-specs/json_tree_time.c
index 1cac21a..0ec4bec 100644
--- a/research/experiments/044-specs/json_tree_time.c
+++ b/research/experiments/044-specs/json_tree_time.c
@@ -73,7 +73,7 @@ int main(int argc, char **argv) {
         n += (size_t)sprintf(doc + n, "%s{\"key%d\": [1.5e3, true, null, \"text \\u00e9 %d\"]}", k ? "," : "", k, k);
     doc[n++] = ']';
     doc[n] = 0;
-    PureModule module;
+    PureModule module = {0};
     char error[160];
     if (pure_module_read(argv[1], &module, error, sizeof(error)) != PURE_OK) { fprintf(stderr, "%s\n", error); return 1; }
     PureApp app;
diff --git a/research/experiments/044-specs/time.c b/research/experiments/044-specs/time.c
index 248889b..f296ece 100644
--- a/research/experiments/044-specs/time.c
+++ b/research/experiments/044-specs/time.c
@@ -83,7 +83,7 @@ int main(int argc, char **argv) {
     uint32_t seed = 140;
     for (size_t i = 0; i < size; ++i) seed = seed * 1664525u + 1013904223u, data[i] = (unsigned char)(seed >> 24);
 
-    PureModule module;
+    PureModule module = {0};
     char error[160];
     if (pure_module_read(argv[1], &module, error, sizeof(error)) != PURE_OK) { fprintf(stderr, "%s\n", error); return 1; }
     PureApp app;