High-performance Rust library for parsing Solana DEX events with microsecond-level latency

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📊 Performance Highlights

⚡ Ultra-Low Latency

• 10-20μs parsing latency in release mode
• Zero-copy parsing with stack-allocated buffers
• SIMD-accelerated pattern matching (memchr)
• Lock-free ArrayQueue for event delivery

🚀 Optimization Highlights

• ✅ Zero heap allocation for hot paths
• ✅ SIMD pattern matching for all protocol detection
• ✅ Static pre-compiled finders for string search
• ✅ Inline functions with aggressive optimization
• ✅ Event type filtering for targeted parsing
• ✅ Conditional Create detection (only when needed)

🔥 Quick Start

Installation

cd your_project_dir
git clone https://github.com/0xfnzero/sol-parser-sdk

Performance Testing

Test parsing latency with the optimized example:

# Run performance test (requires sudo for high-precision timing)
sudo cargo run --example basic --release

# Expected output:
# gRPC接收时间: 1234567890 μs
# 事件接收时间: 1234567900 μs
# 事件解析耗时: 10 μs  <-- Ultra-low latency!

Why sudo? The example uses libc::clock_gettime(CLOCK_REALTIME) for microsecond-precision timing, which may require elevated permissions on some systems.

Basic Usage

use sol_parser_sdk::grpc::{YellowstoneGrpc, EventTypeFilter, EventType};

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    // Create gRPC client
    let grpc = YellowstoneGrpc::new(
        "https://solana-yellowstone-grpc.publicnode.com:443".to_string(),
        None,
    )?;

    // Filter for PumpFun Trade events only (ultra-fast path)
    let event_filter = EventTypeFilter::include_only(vec![
        EventType::PumpFunTrade
    ]);

    // Subscribe and get lock-free queue
    let queue = grpc.subscribe_dex_events(
        vec![transaction_filter],
        vec![account_filter],
        Some(event_filter),
    ).await?;

    // Consume events with minimal latency
    tokio::spawn(async move {
        let mut spin_count = 0;
        loop {
            if let Some(event) = queue.pop() {
                spin_count = 0;
                // Process event (10-20μs latency!)
                println!("{:?}", event);
            } else {
                // Hybrid spin-wait strategy
                spin_count += 1;
                if spin_count < 1000 {
                    std::hint::spin_loop();
                } else {
                    tokio::task::yield_now().await;
                    spin_count = 0;
                }
            }
        }
    });

    Ok(())
}

🏗️ Supported Protocols

DEX Protocols

• ✅ PumpFun - Meme coin trading (ultra-fast zero-copy path)
• ✅ PumpSwap - PumpFun swap protocol
• ✅ Raydium AMM V4 - Automated Market Maker
• ✅ Raydium CLMM - Concentrated Liquidity
• ✅ Raydium CPMM - Concentrated Pool
• ✅ Orca Whirlpool - Concentrated liquidity AMM
• ✅ Meteora AMM - Dynamic AMM
• ✅ Meteora DAMM - Dynamic AMM V2
• ✅ Meteora DLMM - Dynamic Liquidity Market Maker
• ✅ Bonk Launchpad - Token launch platform

Event Types

Each protocol supports:

• 📈 Trade/Swap Events - Buy/sell transactions
• 💧 Liquidity Events - Deposits/withdrawals
• 🏊 Pool Events - Pool creation/initialization
• 🎯 Position Events - Open/close positions (CLMM)

⚡ Performance Features

Zero-Copy Parsing

// Stack-allocated 512-byte buffer for PumpFun Trade
const MAX_DECODE_SIZE: usize = 512;
let mut decode_buf: [u8; MAX_DECODE_SIZE] = [0u8; MAX_DECODE_SIZE];

// Decode directly to stack, no heap allocation
general_purpose::STANDARD
    .decode_slice(data_part.as_bytes(), &mut decode_buf)
    .ok()?;

SIMD Pattern Matching

// Pre-compiled SIMD finders (initialized once)
static PUMPFUN_FINDER: Lazy<memmem::Finder> =
    Lazy::new(|| memmem::Finder::new(b"6EF8rrecthR5Dkzon8Nwu78hRvfCKubJ14M5uBEwF6P"));

// 3-10x faster than .contains()
if PUMPFUN_FINDER.find(log_bytes).is_some() {
    return LogType::PumpFun;
}

Event Type Filtering

// Ultra-fast path for single event type
if include_only.len() == 1 && include_only[0] == EventType::PumpFunTrade {
    if log_type == LogType::PumpFun {
        return parse_pumpfun_trade(  // Zero-copy path
            log, signature, slot, block_time, grpc_recv_us, is_created_buy
        );
    }
}

Lock-Free Queue

// ArrayQueue with 100,000 capacity
let queue = Arc::new(ArrayQueue::<DexEvent>::new(100_000));

// Non-blocking push/pop (no mutex overhead)
let _ = queue.push(event);
if let Some(event) = queue.pop() {
    // Process event
}

🎯 Event Filtering

Reduce processing overhead by filtering specific events:

Example: Trading Bot

let event_filter = EventTypeFilter::include_only(vec![
    EventType::PumpFunTrade,
    EventType::RaydiumAmmV4Swap,
    EventType::RaydiumClmmSwap,
    EventType::OrcaWhirlpoolSwap,
]);

Example: Pool Monitor

let event_filter = EventTypeFilter::include_only(vec![
    EventType::PumpFunCreate,
    EventType::RaydiumClmmCreatePool,
    EventType::OrcaWhirlpoolInitialize,
]);

Performance Impact:

• 60-80% reduction in processing
• Lower memory usage
• Reduced network bandwidth

🔧 Advanced Features

Create+Buy Detection

Automatically detects when a token is created and immediately bought in the same transaction:

// Detects "Program data: GB7IKAUcB3c..." pattern
let has_create = detect_pumpfun_create(logs);

// Sets is_created_buy flag on Trade events
if has_create {
    trade_event.is_created_buy = true;
}

Dynamic Subscription

Update filters without reconnecting:

grpc.update_subscription(
    vec![new_transaction_filter],
    vec![new_account_filter],
).await?;

Performance Metrics

let mut config = ClientConfig::default();
config.enable_metrics = true;

let grpc = YellowstoneGrpc::new_with_config(endpoint, token, config)?;

📁 Project Structure

src/
├── core/
│   └── events.rs          # Event definitions
├── grpc/
│   ├── client.rs          # Yellowstone gRPC client
│   └── types.rs           # Filter & config types
├── logs/
│   ├── optimized_matcher.rs  # SIMD log detection
│   ├── zero_copy_parser.rs   # Zero-copy parsing
│   ├── pumpfun.rs         # PumpFun parser
│   ├── raydium_*.rs       # Raydium parsers
│   ├── orca_*.rs          # Orca parsers
│   └── meteora_*.rs       # Meteora parsers
├── instr/
│   └── *.rs               # Instruction parsers
└── lib.rs

🚀 Optimization Techniques

1. SIMD String Matching

• Replaced all .contains() with memmem::Finder
• 3-10x performance improvement
• Pre-compiled static finders

2. Zero-Copy Parsing

• Stack-allocated buffers (512 bytes)
• No heap allocation in hot path
• Inline helper functions

3. Event Type Filtering

• Early filtering at protocol level
• Conditional Create detection
• Single-type ultra-fast path

4. Lock-Free Queue

• ArrayQueue (100K capacity)
• Spin-wait hybrid strategy
• No mutex overhead

5. Aggressive Inlining

#[inline(always)]
fn read_u64_le_inline(data: &[u8], offset: usize) -> Option<u64> {
    if offset + 8 <= data.len() {
        let mut bytes = [0u8; 8];
        bytes.copy_from_slice(&data[offset..offset + 8]);
        Some(u64::from_le_bytes(bytes))
    } else {
        None
    }
}

📊 Benchmarks

Parsing Latency (Release Mode)

SIMD Pattern Matching

📄 License

MIT License

📞 Contact

• Repository: https://github.com/0xfnzero/solana-streamer
• Telegram: https://t.me/fnzero_group
• Discord: https://discord.gg/vuazbGkqQE

⚠️ Performance Tips

1. Use Event Filtering - Filter at the source for 60-80% performance gain
2. Run in Release Mode - cargo build --release for full optimization
3. Test with sudo - sudo cargo run --example basic --release for accurate timing
4. Monitor Latency - Check grpc_recv_us and queue latency in production
5. Tune Queue Size - Adjust ArrayQueue capacity based on your throughput
6. Spin-Wait Strategy - Tune spin count (default: 1000) for your use case

🔬 Development

# Run tests
cargo test

# Run performance example
sudo cargo run --example basic --release

# Build release binary
cargo build --release

# Generate docs
cargo doc --open