mining, cleanup

MINE/xmr/analyze_memory.sh

@@ -0,0 +1,87 @@
+#!/bin/bash
+
+# Memory Optimization Script for AMD Strix Halo Mining
+# Analyzes current memory allocation and provides optimization recommendations
+
+echo "=== AMD Strix Halo Memory Analysis ==="
+echo ""
+
+# Check current memory usage
+echo "Current Memory Status:"
+echo "======================"
+free -h
+echo ""
+
+# Check GPU memory allocation
+echo "GPU Memory Allocation:"
+echo "======================"
+if [ -f "/sys/class/drm/card1/device/mem_info_vram_total" ]; then
+    GPU_TOTAL=$(sudo cat /sys/class/drm/card1/device/mem_info_vram_total)
+    GPU_USED=$(sudo cat /sys/class/drm/card1/device/mem_info_vram_used)
+    
+    GPU_TOTAL_GB=$((GPU_TOTAL / 1024 / 1024 / 1024))
+    GPU_USED_GB=$((GPU_USED / 1024 / 1024 / 1024))
+    GPU_WASTED_GB=$((GPU_TOTAL_GB - GPU_USED_GB))
+    
+    echo "Total GPU VRAM allocated: ${GPU_TOTAL_GB}GB"
+    echo "GPU VRAM actually used: ${GPU_USED_GB}GB"
+    echo "GPU VRAM wasted: ${GPU_WASTED_GB}GB"
+    echo ""
+fi
+
+# Check current kernel parameters
+echo "Current Kernel Parameters:"
+echo "========================="
+cat /proc/cmdline | grep -o "amdgpu\.[^ ]*" | head -5
+echo ""
+
+# Check if huge pages are available
+echo "Huge Pages Status:"
+echo "=================="
+if [ -f "/proc/sys/vm/nr_hugepages" ]; then
+    NR_HUGEPAGES=$(cat /proc/sys/vm/nr_hugepages)
+    HUGEPAGES_FREE=$(cat /proc/sys/vm/free_hugepages)
+    echo "Total huge pages: ${NR_HUGEPAGES}"
+    echo "Free huge pages: ${HUGEPAGES_FREE}"
+    echo ""
+fi
+
+# Recommendations
+echo "Optimization Recommendations:"
+echo "============================"
+echo "1. GPU Memory Reduction:"
+echo "   - Current: 96GB allocated, only 1.6GB used"
+echo "   - Recommendation: Reduce to 4-8GB in BIOS/UEFI"
+echo "   - Potential gain: +5-10% mining performance"
+echo ""
+echo "2. Kernel Parameters:"
+echo "   - Current: amdgpu.gttsize=131072 (128GB)"
+echo "   - Recommended: amdgpu.gttsize=32768 (32GB)"
+echo "   - Add to /etc/default/grub: GRUB_CMDLINE_LINUX_DEFAULT=\"... amdgpu.gttsize=32768\""
+echo ""
+echo "3. Huge Pages:"
+echo "   - Current: ${NR_HUGEPAGES} total, ${HUGEPAGES_FREE} free"
+echo "   - Recommendation: Ensure at least 32 huge pages available for mining"
+echo ""
+echo "4. Expected Performance Improvement:"
+echo "   - Current best: 14,728.4 H/s"
+echo "   - With memory optimization: ~15,500-16,000 H/s (+5-8%)"
+echo ""
+
+# Check if optimization is possible
+if [ "$GPU_WASTED_GB" -gt 80 ]; then
+    echo "⚠️  SIGNIFICANT OPTIMIZATION OPPORTUNITY DETECTED"
+    echo "   ${GPU_WASTED_GB}GB of GPU memory is wasted!"
+    echo "   This could be reallocated to improve CPU mining performance."
+    echo ""
+fi
+
+echo "To apply kernel parameter changes:"
+echo "1. Edit /etc/default/grub"
+echo "2. Add amdgpu.gttsize=32768 to GRUB_CMDLINE_LINUX_DEFAULT"
+echo "3. Run: sudo update-grub"
+echo "4. Reboot system"
+echo ""
+echo "Note: Test mining performance after each change to verify improvements."
+
+