joeylib2/scripts/bench-amiga.sh
2026-06-30 18:07:12 -05:00

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#!/usr/bin/env bash
# Headless UBER perf capture for the Amiga (FS-UAE).
#
# Stages the built Amiga binaries + DATA into a scratch directory-HD
# with an s/startup-sequence that auto-runs Uber, boots A500/OCS from
# the real Kickstart on a private Xvfb display, polls the staged
# joeylog.txt until UBER prints its "press any key to exit" completion
# marker (or a wall-clock timeout), then kills the emulator and copies
# the log to build/amiga/bin/joeylog.txt for tools/uber-perf-table.
#
# scripts/bench-amiga.sh # default 150s timeout
# TIMEOUT=240 scripts/bench-amiga.sh # override
#
# Real Kickstart (toolchains/emulators/support/kickstart.rom) is
# required -- the HAL drives OCS directly and AROS is unreliable for it.
set -euo pipefail
repo=$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)
bin_dir=$repo/build/amiga/bin
support=$repo/toolchains/emulators/support
kickstart=$support/kickstart.rom
timeout_s=${TIMEOUT:-150}
if [[ ! -f $bin_dir/Uber ]]; then
echo "Uber not built. Run 'make amiga' first." >&2
exit 1
fi
if [[ ! -f $kickstart ]]; then
echo "Kickstart ROM missing: $kickstart" >&2
exit 1
fi
work=$(mktemp -d -t joeylib-amiga-bench.XXXXXX)
mkdir -p "$work/s"
find "$bin_dir" -maxdepth 1 -type f -executable -exec cp -t "$work/" {} +
if [[ -d "$bin_dir/DATA" ]]; then
cp -r "$bin_dir/DATA" "$work/"
fi
# ':' anchors to the boot volume root.
echo ":Uber" > "$work/s/startup-sequence"
log=$work/joeylog.txt
display=:$((90 + RANDOM % 9))
Xvfb "$display" -screen 0 800x600x24 -nolisten tcp >/dev/null 2>&1 &
xvfb_pid=$!
sleep 0.4
cleanup() {
kill "$fs_pid" 2>/dev/null || true
kill "$xvfb_pid" 2>/dev/null || true
wait 2>/dev/null || true
rm -rf "$work"
}
trap cleanup EXIT
echo "bench-amiga: running UBER headless (timeout ${timeout_s}s)..." >&2
DISPLAY=$display fs-uae \
--amiga_model=A500 \
--fast_memory=2048 \
--hard_drive_0="$work" \
--hard_drive_0_label=JOEYLIB \
--kickstart_file="$kickstart" \
--automatic_input_grab=0 \
--fullscreen=0 \
--fade_out_duration=0 \
>/tmp/bench-amiga-fsuae.log 2>&1 &
fs_pid=$!
waited=0
while (( waited < timeout_s )); do
if [[ -f $log ]] && grep -q "press any key to exit" "$log" 2>/dev/null; then
break
fi
sleep 2
(( waited += 2 )) || true
done
if [[ ! -f $log ]]; then
echo "bench-amiga: FAIL -- no joeylog.txt produced" >&2
exit 1
fi
cp "$log" "$bin_dir/joeylog.txt"
ops=$(grep -c "ops/sec" "$log" || true)
done_marker=$(grep -c "press any key to exit" "$log" || true)
if (( done_marker == 0 )); then
echo "bench-amiga: WARNING -- timed out before completion marker (partial capture)" >&2
fi
echo "bench-amiga: captured $ops op lines (complete=$done_marker) in ${waited}s" >&2
echo " -> $bin_dir/joeylog.txt" >&2
grep "UBER:" "$log" | sed 's/ | hash=.*//' || true