Fabian
65 lines
1.9 KiB
Bash
65 lines
1.9 KiB
Bash
#!/bin/bash
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# Stress the GPU with a real Vulkan compute workload and monitor clocks
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H=/sys/class/drm/card0/device/hwmon/hwmon1
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SYSFS=/sys/class/drm/card0/device
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echo "=== PRE-LOAD ==="
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echo "FREQ: $(cat $H/freq1_input) Hz"
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cat $SYSFS/pp_dpm_sclk
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# Check if pp_table exists or can be created
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echo "=== PP_TABLE CHECK ==="
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ls -la $SYSFS/pp_table 2>/dev/null || echo "pp_table: NOT PRESENT"
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sudo cat $SYSFS/pp_table 2>/dev/null | wc -c || echo "pp_table: NOT READABLE"
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# Create a Vulkan compute stress with vkcube or glmark if available
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if command -v vkcube &>/dev/null; then
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echo "Starting vkcube..."
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timeout 8 vkcube --c 99999 &>/dev/null &
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STRESS_PID=$!
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elif command -v glmark2-es2 &>/dev/null; then
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echo "Starting glmark2..."
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timeout 8 glmark2-es2 --off-screen &>/dev/null &
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STRESS_PID=$!
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else
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# Fallback: just do heavy memory operations via python
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echo "Starting python GPU mem stress..."
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timeout 8 python3 -c "
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import ctypes, time
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# Just allocate and fill memory rapidly to force GPU activity
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data = bytearray(512*1024*1024)
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for i in range(100):
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data[i*1024:(i+1)*1024] = b'x' * 1024
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time.sleep(6)
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" &>/dev/null &
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STRESS_PID=$!
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fi
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# Monitor during load
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for i in 1 2 3 4 5 6; do
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sleep 1
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freq=$(cat $H/freq1_input)
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dpm=$(cat $SYSFS/pp_dpm_sclk | grep '\*')
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power=$(cat $H/power1_input)
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temp=$(cat $H/temp1_input)
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echo "t+${i}s: freq=${freq}Hz dpm=${dpm} power=${power}uW temp=${temp}mC"
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done
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kill $STRESS_PID 2>/dev/null
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wait $STRESS_PID 2>/dev/null
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echo "=== POST LOAD ==="
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sleep 1
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echo "FREQ: $(cat $H/freq1_input) Hz"
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cat $SYSFS/pp_dpm_sclk
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# Check if we can write pp_table
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echo "=== PP_TABLE WRITE TEST ==="
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if [ -f "$SYSFS/pp_table" ]; then
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echo "pp_table exists, trying to read..."
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sudo cat $SYSFS/pp_table > /tmp/pp_table_backup.bin 2>/dev/null
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echo "Read $(wc -c < /tmp/pp_table_backup.bin) bytes"
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else
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echo "No pp_table file — cannot modify power table"
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fi
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