mirror of
https://github.com/archr-linux/Arch-R.git
synced 2026-07-12 18:19:42 -07:00
Douglas Teles
ff1d3962ec
- ZRAM compression: lzo-rle → zstd (better 1:3 ratio vs 1:2.5, saves ~50MB more RAM on 512MB ZRAM at cost of slightly more CPU) - Add zswap.enabled=0 to kernel cmdline (zswap intercepts before ZRAM, preventing efficient compressed swap) Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
104 lines
3.5 KiB
Bash
Executable File
104 lines
3.5 KiB
Bash
Executable File
#!/bin/bash
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# ArchR Performance Benchmark Script
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# Run on device: bash /flash/bench.sh <scenario> [duration_seconds]
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# Results saved to /storage/bench-results/
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DURATION=${2:-60}
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RESULTS_DIR="/storage/bench-results/$(date +%Y%m%d-%H%M%S)-${1:-general}"
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mkdir -p "$RESULTS_DIR"
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echo "========================================"
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echo " ArchR Benchmark: ${1:-general}"
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echo " Duration: ${DURATION}s"
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echo " Output: $RESULTS_DIR"
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echo "========================================"
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# Metadata
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cat > "$RESULTS_DIR/meta.json" << METAEOF
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{
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"timestamp": "$(date -Iseconds)",
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"kernel": "$(uname -r)",
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"distro": "$(grep ^NAME /etc/os-release | cut -d= -f2)",
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"cpu_governor": "$(cat /sys/devices/system/cpu/cpufreq/policy0/scaling_governor 2>/dev/null)",
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"gpu_governor": "$(cat /sys/class/devfreq/ff400000.gpu/governor 2>/dev/null)",
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"dmc_governor": "$(cat /sys/class/devfreq/dmc/governor 2>/dev/null)",
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"mem_available_kb": $(grep MemAvailable /proc/meminfo | awk '{print $2}'),
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"cma_total_kb": $(grep CmaTotal /proc/meminfo | awk '{print $2}'),
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"cma_free_kb": $(grep CmaFree /proc/meminfo | awk '{print $2}'),
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"zram_algo": "$(cat /sys/block/zram0/comp_algorithm 2>/dev/null | tr -d '[]')",
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"swap": "$(swapon --show --noheadings 2>/dev/null | head -1)",
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"swappiness": $(sysctl -n vm.swappiness 2>/dev/null),
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"vfs_cache_pressure": $(sysctl -n vm.vfs_cache_pressure 2>/dev/null),
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"temperature_start": $(cat /sys/class/thermal/thermal_zone0/temp 2>/dev/null),
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"sd_model": "$(cat /sys/block/mmcblk0/device/name 2>/dev/null)",
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"scenario": "${1:-general}"
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}
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METAEOF
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# PSI monitoring (background)
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echo "Starting PSI monitoring..."
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(
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while true; do
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echo "$(date +%s.%N) $(cat /proc/pressure/cpu 2>/dev/null | head -1) $(cat /proc/pressure/memory 2>/dev/null | head -1) $(cat /proc/pressure/io 2>/dev/null | head -1)"
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sleep 1
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done
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) > "$RESULTS_DIR/psi.log" &
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PSI_PID=$!
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# Frequency + temperature monitoring (background)
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echo "Starting freq/temp monitoring..."
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(
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while true; do
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CPU_FREQ=$(cat /sys/devices/system/cpu/cpufreq/policy0/scaling_cur_freq 2>/dev/null)
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GPU_FREQ=$(cat /sys/class/devfreq/ff400000.gpu/cur_freq 2>/dev/null)
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DMC_FREQ=$(cat /sys/class/devfreq/dmc/cur_freq 2>/dev/null)
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TEMP=$(cat /sys/class/thermal/thermal_zone0/temp 2>/dev/null)
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MEM=$(grep MemAvailable /proc/meminfo | awk '{print $2}')
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echo "$(date +%s.%N) cpu=$CPU_FREQ gpu=$GPU_FREQ dmc=$DMC_FREQ temp=$TEMP mem=$MEM"
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sleep 1
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done
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) > "$RESULTS_DIR/freq-therm.log" &
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FREQ_PID=$!
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# vmstat monitoring
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vmstat 1 $DURATION > "$RESULTS_DIR/vmstat.log" &
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VMSTAT_PID=$!
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# dmesg monitoring
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dmesg -w > "$RESULTS_DIR/dmesg.log" 2>/dev/null &
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DMESG_PID=$!
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echo ""
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echo "Monitors running. Now launch your game/emulator."
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echo "Press Ctrl+C after ${DURATION}s or when done testing."
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echo ""
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# Wait
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sleep $DURATION 2>/dev/null || true
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# Cleanup
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kill $PSI_PID $FREQ_PID $VMSTAT_PID $DMESG_PID 2>/dev/null
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wait 2>/dev/null
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# Generate summary
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TEMP_END=$(cat /sys/class/thermal/thermal_zone0/temp 2>/dev/null)
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MEM_END=$(grep MemAvailable /proc/meminfo | awk '{print $2}')
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cat > "$RESULTS_DIR/summary.json" << SUMEOF
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{
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"duration_s": $DURATION,
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"temperature_end": $TEMP_END,
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"mem_available_end_kb": $MEM_END,
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"psi_samples": $(wc -l < "$RESULTS_DIR/psi.log"),
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"freq_samples": $(wc -l < "$RESULTS_DIR/freq-therm.log")
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}
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SUMEOF
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echo ""
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echo "========================================"
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echo " Benchmark complete!"
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echo " Results: $RESULTS_DIR"
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echo " Files: $(ls $RESULTS_DIR | wc -l)"
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echo "========================================"
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ls -lh "$RESULTS_DIR"
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