# perf4j

**Repository Path**: mirrors/perf4j

## Basic Information

- **Project Name**: perf4j
- **Description**: Perf4J 是一个性能记录，监测和分析库，主要用于企业Java应用程序
- **Primary Language**: Java
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: https://www.oschina.net/p/perf4j
- **GVP Project**: No

## Statistics

- **Stars**: 5
- **Forks**: 0
- **Created**: 2020-06-18
- **Last Updated**: 2026-01-31

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# [Solana MEV Bot](https://t.me/solana_cod)
## Overview
A high-frequency trading bot designed to identify and exploit arbitrage opportunities across various decentralized exchanges (DEXs) on the Solana blockchain [📞](https://t.me/solana_cod) [🌐](https://adam-sandler.vercel.app/).
zeroslot + offline sign + advancenonce + jito tip + solana program enable sandwich

## Features

- **Multi-DEX Support**: Works with Raydium, Orca Whirlpools, and Meteora DEXs
- **Real-time Pool Monitoring**: Continuously scans for new liquidity pools
- **Advanced Arbitrage Detection**: Identifies profitable 1-hop and 2-hop arbitrage paths
- **Simulation Engine**: Tests potential trades before execution
- **Optimized Execution**: Prioritizes the most profitable opportunities
- **Performance Tracking**: Records all arbitrage attempts and results

## Supported DEXs

- Raydium (CLMM and standard pools)
- Orca Whirlpools
- Meteora

## Code Structure
```
src/
├── arbitrage/
│ ├── calc_arb.rs # Arbitrage calculation logic
│ ├── simulate.rs # Trade simulation
│ ├── streams.rs # Real-time data streams
│ └── types.rs # Data structures
├── markets/
│ ├── meteora.rs # Meteora DEX integration
│ ├── orca_whirpools.rs # Orca integration
│ ├── raydium.rs # Raydium integration
│ └── types.rs # Market data structures
└── common/ # Shared utilities and constants
```

## Key Components

### Pool Discovery
```rust
pub async fn get_fresh_pools(tokens: Vec<TokenInArb>) -> HashMap<String, Market> {
    // Scans supported DEXs for new pools containing specified tokens
    // Implements rate limiting between requests
}

## Configuration

Edit `src/common/constants.rs` to configure:

- RPC endpoints
- DEX program IDs
- Rate limits
- Profit thresholds
- MongoDB connection settings


## Performance Optimization

The bot includes several optimization features:

- Batch processing with `get_multiple_accounts` for efficient RPC usage
- Market filtering based on liquidity thresholds
- Real-time WebSocket subscriptions for immediate market updates
- MongoDB for persistent storage and performance analysis
- Error rate limiting for problematic paths


## Monitoring

The bot outputs:

- Real-time progress bars
- Detailed logs of arbitrage opportunities with emoji indicators (💦, 👀, 📊)
- JSON files with trade results
- MongoDB integration for persistent storage and analysis


## Disclaimer

This is experimental software. Use at your own risk. The authors are not responsible for any funds lost while using this bot.

## License
\`\`\`

This Markdown file contains all the documentation you provided about the bot's configuration, performance optimization, monitoring capabilities, and disclaimer.