Russell Ballestrini
92ffb0630b
- Update prune size from 2GB to 2.2GB throughout docs - Change prune=2000 to prune=2200 to match make dogecoin-config - Update wallet name to mps_wallet to match actual configuration
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========================================
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Cryptocurrency Performance Analysis
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========================================
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Production Resource Usage and Performance Metrics
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=================================================
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This document provides real-world performance measurements from production cryptocurrency nodes and services running Make Post Sell.
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Measurement Methodology
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=======================
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Commands Used for Analysis
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--------------------------
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**1. Find Running Processes:**
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::
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# List all cryptocurrency-related processes
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ps aux | grep -E "(monero|dogecoin|doge)" | grep -v grep
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**2. Basic Process Information:**
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::
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# Get process details with memory usage
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ps aux | grep -E "(monero-wallet-rpc|dogecoind)" | grep -v grep | \
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awk '{print $1, $2, $3, $4, $5, $6, $11}'
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**3. Detailed Memory Statistics:**
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::
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# Get detailed memory stats from /proc filesystem
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echo "=== Monero Wallet RPC (PID $PID1) ===" && \
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cat /proc/$PID1/status | grep -E "(VmSize|VmRSS|VmPeak)"
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echo "=== Dogecoind (PID $PID2) ===" && \
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cat /proc/$PID2/status | grep -E "(VmSize|VmRSS|VmPeak)"
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**4. Process Uptime and Stability:**
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::
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# Check how long processes have been running
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ps -p $PID1,$PID2 -o pid,comm,etime,rss
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**5. Convert Memory Values:**
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::
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# Convert KB to MB for readability
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echo "scale=2; $KB_VALUE/1024" | bc
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Production Measurements
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=======================
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Test Environment
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----------------
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- **Date of Measurement**: September 2024
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- **System Uptime**: 4+ days for both services
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- **Production Load**: Active payment processing
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- **Configuration**: Standard Make Post Sell setup
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Monero Wallet RPC Performance
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-----------------------------
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**Configuration**: Remote node (opennode.xmr-tw.org:18089)
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**Process Details**:
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::
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Command: monero-wallet-rpc --wallet-file=/path/to/mps-wallet \
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--daemon-address=opennode.xmr-tw.org:18089 \
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--trusted-daemon --rpc-bind-ip=127.0.0.1 \
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--rpc-bind-port=18083 --rpc-login=test_user:test_pass
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**Resource Usage**:
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- **RSS (Resident Set Size)**: 11,136 KB (~10.87 MB)
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- **Virtual Memory Size**: 493,508 KB (~481.94 MB)
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- **Peak Memory**: 531,908 KB (~519.44 MB)
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- **CPU Usage**: 0.0% (idle most of the time)
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- **Process Uptime**: 4 days, 14 hours, 54 minutes
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**Key Findings**:
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1. Extremely lightweight with remote node configuration
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2. Minimal active memory usage (~11 MB)
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3. No blockchain storage required
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4. Stable over extended periods
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5. Suitable for resource-constrained environments
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Dogecoin Core Performance
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-------------------------
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**Configuration**: Pruned mode with 2.2GB limit
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**Process Details**:
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::
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Command: dogecoind
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Config: prune=2200 (2.2GB blockchain storage limit)
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**Resource Usage**:
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- **RSS (Resident Set Size)**: 161,936 KB (~158.14 MB)
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- **Virtual Memory Size**: 3,671,788 KB (~3,585.73 MB)
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- **Peak Memory**: 3,903,284 KB (~3,811.80 MB)
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- **CPU Usage**: 11.7% (active blockchain validation)
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- **Process Uptime**: 4 days, 8 hours, 6 minutes
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**Key Findings**:
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1. Requires ~4GB RAM during initial sync
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2. Settles to ~160MB active memory after sync
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3. Higher CPU usage due to blockchain validation
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4. Pruned mode saves 96% disk space (2.2GB vs 50GB)
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5. Stable for extended production use
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Resource Requirements Summary
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=============================
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Development Environment
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-----------------------
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**Minimum Requirements**:
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- **Monero (Remote Node)**: 512MB RAM, no disk space
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- **Dogecoin (Pruned)**: 4GB RAM, 2.2GB disk space
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**Recommended**:
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- **Monero (Remote Node)**: 1GB RAM for comfort
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- **Dogecoin (Pruned)**: 6GB RAM for faster sync
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Production Environment
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----------------------
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**After Initial Sync**:
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- **Monero Wallet RPC**: ~11MB active memory
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- **Dogecoin Core**: ~160MB active memory
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- **Combined**: Less than 200MB active memory
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**During Operations**:
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- Payment processing adds minimal overhead
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- Auto-sweep operations are memory-efficient
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- Multiple shops share the same services
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Performance Optimization Tips
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=============================
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Monero Optimization
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-------------------
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1. **Use Remote Nodes for Development/Small Deployments**
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# Lightweight option - no blockchain required
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--daemon-address=opennode.xmr-tw.org:18089
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2. **Local Node for High-Volume Production**
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# Better privacy and reliability, but needs 150GB+ disk
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--daemon-address=127.0.0.1:18081
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3. **Memory Optimization**
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# Limit transaction history if memory-constrained
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--max-concurrency=1
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Dogecoin Optimization
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---------------------
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1. **Pruned Mode Configuration**
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# In dogecoin.conf
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prune=2200 # Minimum for wallet functionality
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# Can increase for better performance
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prune=5000 # 5GB limit
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2. **Database Cache Tuning**
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# Reduce memory usage (default 300MB)
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dbcache=100
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# Or increase for better performance
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dbcache=1000
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3. **Connection Limits**
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# Reduce peer connections to save resources
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maxconnections=8
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Monitoring Commands
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===================
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Real-time Monitoring
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--------------------
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**Memory Usage Over Time**:
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# Monitor every 5 seconds
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watch -n 5 'ps aux | grep -E "(monero|doge)" | grep -v grep'
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**Detailed Memory Breakdown**:
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# Show memory maps
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pmap -x $PID | tail -1
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**Resource Limits**:
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# Check process limits
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cat /proc/$PID/limits
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Performance Logging
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-------------------
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**Create Monitoring Script**:
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#!/bin/bash
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# Save as monitor_crypto.sh
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LOG_FILE="/var/log/crypto_performance.log"
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while true; do
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echo "=== $(date) ===" >> $LOG_FILE
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ps aux | grep -E "(monero|doge)" | grep -v grep >> $LOG_FILE
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echo "" >> $LOG_FILE
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sleep 300 # Log every 5 minutes
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done
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**Analyze Performance Trends**:
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# Average memory usage
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awk '/monero-wallet-rpc/ {sum+=$6; count++} END {print sum/count}' $LOG_FILE
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# Peak memory usage
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awk '/dogecoind/ {if($6>max) max=$6} END {print max}' $LOG_FILE
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Troubleshooting High Resource Usage
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====================================
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Monero Wallet RPC
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-----------------
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**Symptoms**: High memory usage with remote node
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**Diagnosis**:
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# Check wallet cache size
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du -sh ~/.bitmonero/
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**Solution**:
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# Clear transaction cache
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monero-wallet-cli --wallet-file=/path/to/wallet
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> rescan_bc hard
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Dogecoin Core
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-------------
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**Symptoms**: Excessive memory during sync
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**Diagnosis**:
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# Check sync progress
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dogecoin-cli getblockchaininfo | grep -E "(blocks|headers|progress)"
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**Solution**:
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# Reduce database cache during sync
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dogecoin-cli stop
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# Add to dogecoin.conf: dbcache=50
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dogecoind
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Capacity Planning
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=================
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Scaling Considerations
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----------------------
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**Per-Shop Resource Impact**:
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- Monero: Negligible (shared wallet RPC)
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- Dogecoin: Negligible (shared node)
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- Database: ~1MB per 1000 payments
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**High-Volume Recommendations**:
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1. **10-100 shops**: Single server sufficient
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2. **100-1000 shops**: Consider dedicated database
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3. **1000+ shops**: Multiple crypto nodes with load balancing
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**Resource Scaling Formula**:
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# Rough estimates
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RAM_needed = base_requirement + (shops * 0.1MB) + (daily_payments * 0.01MB)
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# Example: 100 shops, 1000 daily payments
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Monero: 512MB + 10MB + 10MB = 532MB
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Dogecoin: 4GB + 10MB + 10MB = 4.02GB
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Conclusion
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==========
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The cryptocurrency infrastructure for Make Post Sell is remarkably efficient:
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1. **Monero with remote node**: Production-ready with just 11MB active memory
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2. **Dogecoin pruned mode**: Requires 4GB during sync but only 160MB ongoing
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3. **Combined footprint**: Less than 200MB RAM for active operations
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4. **Proven stability**: 4+ days continuous operation without issues
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This performance profile makes Make Post Sell suitable for deployment on modest VPS instances while maintaining the ability to scale to high-volume operations. |