110 lines
3.7 KiB
Bash
Executable file
110 lines
3.7 KiB
Bash
Executable file
#!/usr/bin/env bash
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# Part of JoeyLib, Copyright (c) 2026 Scott Duensing, under the MIT License.
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# See LICENSE.md for license information.
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# SPDX-License-Identifier: MIT
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#
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# Headless UBER perf capture for the Atari ST family (Hatari).
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#
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# Runs UBER.PRG under Hatari (fast-forward, no sound) on a private Xvfb
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# display, polling joeylog.txt until UBER prints its "press any key to
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# exit" completion marker (or a wall-clock timeout), then kills the
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# emulator.
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#
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# The machine picks the build: a plain ST or a Mega ST runs the ST build
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# (make atarist, build/atarist), an STe or Mega STe the STe build (make
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# ste, build/ste: BLiTTER, DMA sound, 4-bit palette, and the Mega STe's
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# 16 MHz). Both builds' hashes must match the ST's golden; the rates
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# differ.
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#
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# UBER writes "UBER: <op>: N iters / M frames = K ops/sec" lines to
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# joeylog.txt in its CWD == the GEMDOS drive C: == the bin dir, so the
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# log lands directly in build/<build>/bin/joeylog.txt (for the ST build
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# where tools/uber-perf-table expects it). A copy is kept as
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# joeylog-MACHINE.txt beside it, so runs on several machines can be
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# compared afterwards.
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#
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# scripts/bench-atarist.sh # the ST build on a plain ST, default 90s timeout
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# scripts/bench-atarist.sh megast # the ST build on a Mega ST
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# scripts/bench-atarist.sh ste # the STe build on an STe
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# scripts/bench-atarist.sh megaste # the STe build on a Mega STe
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# TIMEOUT=120 scripts/bench-atarist.sh # override
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#
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# NOTE: requires the ST supervisor-mode fix in src/atarist/hal.c
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# (jlpInit Super(0L)); without it UBER bus-errors on the first present.
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set -euo pipefail
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repo=$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)
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source "$repo/scripts/lib/joeyEnv.sh"
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joeyNeed HATARI hatari
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joeyNeed EMUTOS_IMG emutos
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machine=${1:-st}
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case $machine in
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st|megast) build=atarist ;;
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ste|megaste) build=ste ;;
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*) echo "usage: scripts/bench-atarist.sh [st|megast|ste|megaste]" >&2; exit 2 ;;
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esac
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bin_dir=$repo/build/$build/bin
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tos=$EMUTOS_IMG
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log=$bin_dir/joeylog.txt
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timeout_s=${TIMEOUT:-90}
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if [[ ! -f $bin_dir/UBER.PRG ]]; then
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echo "UBER.PRG not built. Run 'make $build' first." >&2
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exit 1
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fi
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if [[ ! -f $tos ]]; then
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echo "TOS ROM missing: $tos" >&2
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exit 1
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fi
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rm -f "$log"
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display=:$((90 + RANDOM % 9))
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Xvfb "$display" -screen 0 800x600x24 -nolisten tcp >/dev/null 2>&1 &
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xvfb_pid=$!
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sleep 0.4
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cleanup() {
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joeyStop "$hat_pid"
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kill "$xvfb_pid" 2>/dev/null || true
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wait 2>/dev/null || true
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}
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trap cleanup EXIT
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echo "bench-atarist: running the $build build's UBER headless on a $machine (timeout ${timeout_s}s)..." >&2
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DISPLAY=$display "$HATARI" \
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--machine "$machine" \
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--tos "$tos" \
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--harddrive "$bin_dir" \
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--gemdos-drive C \
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--drive-a off --drive-b off \
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--sound off \
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--fast-forward on \
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--frameskips 4 \
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--auto "C:\\UBER.PRG" >/tmp/bench-atarist-hatari.log 2>&1 &
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hat_pid=$!
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# Poll for the completion marker UBER flushes just before its key wait.
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waited=0
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while (( waited < timeout_s )); do
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if [[ -f $log ]] && grep -q "press any key to exit" "$log"; then
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break
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fi
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sleep 1
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(( waited++ )) || true
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done
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if [[ ! -f $log ]]; then
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echo "bench-atarist: FAIL -- no joeylog.txt produced" >&2
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exit 1
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fi
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ops=$(grep -c "ops/sec" "$log" || true)
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done_marker=$(grep -c "press any key to exit" "$log" || true)
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if (( done_marker == 0 )); then
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echo "bench-atarist: WARNING -- timed out before completion marker (partial capture)" >&2
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fi
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cp "$log" "$bin_dir/joeylog-$machine.txt"
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echo "bench-atarist: captured $ops op lines (complete=$done_marker) on a $machine in ${waited}s" >&2
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echo " -> $log (and joeylog-$machine.txt)" >&2
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grep "UBER:" "$log" | sed 's/ | hash=.*//' || true
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