1 files changed, 52 insertions, 0 deletions
diff --git a/research/experiments/026-apps-on-one-host/runs.sh b/research/experiments/026-apps-on-one-host/runs.sh
new file mode 100755
index 0000000..f2ddf19
--- /dev/null
+++ b/research/experiments/026-apps-on-one-host/runs.sh
@@ -0,0 +1,52 @@
+#!/bin/sh
+# The runs of docs/design/017's first stage, from the repository's root, in
+# steps (each fits a session's background limit), the binaries kept in
+# $WORK (default /tmp/pure-026) between them:
+#   runs.sh build       pure-serve before 017 (0b5fa1d, in a scratch worktree) and after
+#   runs.sh memory      what an app costs a host (memory.py)
+#   runs.sh isolation   two apps as two processes or one host (isolation.py, five rounds of 15 s)
+#   runs.sh pairs A B   a host of one app before and after, rounds A to B in turns as 025 ran them:
+#                       TPC-C in RAM (W=1, 64 terminals) and the bank's queries
+#   runs.sh counts      the bank queries' instructions before and after (025's count.py)
+# Each timed step waits until the Pi has been quiet (the last minute's load below 1.5).
+set -e
+out=research/experiments/026-apps-on-one-host
+work=${WORK:-/tmp/pure-026}
+quiet() { until awk '{ exit !($1 < 1.5) }' /proc/loadavg; do sleep 10; done; }
+case $1 in
+build)
+    mkdir -p $work
+    git worktree add -q --detach $work/tree 0b5fa1d
+    make -C $work/tree -s build/pure-serve
+    cp $work/tree/build/pure-serve $work/pure-serve-before
+    git worktree remove --force $work/tree
+    make -s build/pure-serve
+    cp build/pure-serve $work/pure-serve-after
+    (cd benchmarks/http && cc -O2 -std=c17 -o load load.c) ;;
+memory)
+    quiet
+    python3 $out/memory.py $work/pure-serve-after 1 10 100 > $out/2026-10-01-memory-linux-aarch64.jsonl ;;
+isolation)
+    quiet
+    echo "isolation $(uptime)" >> $out/2026-10-01-load.txt
+    python3 $out/isolation.py $work/pure-serve-after 5 15 > $out/2026-10-01-isolation-linux-aarch64.jsonl ;;
+pairs)
+    for round in $(seq $2 $3); do
+        first=before second=after
+        if [ $((round % 2)) = 0 ]; then first=after second=before; fi
+        for version in $first $second; do
+            quiet
+            echo "$round $version $(uptime)" >> $out/2026-10-01-load.txt
+            python3 benchmarks/tpcc/run.py --serve $work/pure-serve-$version --warehouses 1 --check 0 --terminals 64 \
+                --sqlite-threads '' --sqlite-group '' --seconds 20 > $out/2026-10-01-tpcc-$version-$round-linux-aarch64.jsonl
+            python3 benchmarks/bank/queries.py --serve $work/pure-serve-$version \
+                > $out/2026-10-01-queries-$version-$round-linux-aarch64.jsonl
+        done
+    done ;;
+counts)
+    python3 research/experiments/025-i64-cost/count.py $work/pure-serve-before $work/pure-serve-after \
+        $work/pure-serve-before $work/pure-serve-after > $out/2026-10-01-counts-linux-aarch64.jsonl ;;
+*)
+    echo "runs.sh build|memory|isolation|pairs FIRST LAST|counts" >&2
+    exit 2 ;;
+esac