Zero-allocation. Multi-strategy. Global infrastructure.
4 strategies. 3 DEXs. 7 nodes. 3 continents. Your milkshake is ours.
We are not market makers. We are not here to backstop your pool. We are here to drink your milkshake. Every slippage tolerance you set is a contract we intend to fill — to the exact lamport.
Sandwich your swaps. Arb your price dislocations across Raydium, Orca, and Meteora. Liquidate your underwater loans. JIT your concentrated liquidity. 4 strategies. 3 DEXs. Every slot is a buffet.
Every Vec, every Box, every String on the hot path is a microsecond you'll never get back. Frank runs on pure stack. No heap. No garbage collector. No regrets.
Linux's TCP/IP stack adds 15–20µs per syscall. That's an eternity. Frank bypass's the kernel entirely — raw DMA from FPGA, raw UDP to NIC. We don't ask the OS for permission. We take what we want.
Mutex? RwLock? Those invoke futex() syscalls under contention — 20-50µs of scheduler penalties. Frank uses custom Seqlocks with UnsafeCell interior mutability. One writer. N readers. Zero contention.
10 crates. 47 source files. 151 tests. Zero clippy warnings. Zero todo!() macros. Zero f64 on the hot path. 5,800 lines of audited, production-grade Rust. This codebase was forged in pain and ships battle-ready.
| STAGE | TARGET | MECHANISM |
|---|---|---|
| Validator → Geyser plugin | < 1ms | In-process shared memory |
| Geyser plugin → gRPC | < 1ms | Protobuf encoding |
| gRPC → Execute node (LAN) | < 1ms | Same DC, same rack |
| Deserialize + Seqlock write | < 100µs | bytemuck zero-copy |
| crossbeam channel send | < 1µs | Pre-allocated bounded queue |
| Strategy evaluation (4 engines) | < 1ms | U256 binary search × 4 strategies |
| Bundle construction | < 100µs | Stack-allocated FixedTx |
| EWMA tip calculation | < 1µs | Atomic integer arithmetic |
| Bundle → Jito Block Engine | < 2ms | gRPC to regional endpoint |
| TOTAL | < 4ms | Validator to bundle submission |
Seqlocks for Raydium, Orca, & Meteora. Region types. SwapEvent. The 752-byte foundation.
Multi-DEX PoolCache. PubkeySlotMap for O(1) lookups. 2,048 seqlock slots per DEX.
U256 CPMM math. Binary search sandwich solver. The original mathematical brain.
Orca CLMM + Meteora DLMM math. Cross-DEX price scanner. Binary search sizing.
Health engine for Solend/Marginfi/Kamino. Pyth + Switchboard oracle parsers.
Integer-only tick math. CLMM position calculations. Orca Whirlpool IX builders.
Yellowstone gRPC client. Raydium/Orca/Meteora decoders. Pool discovery engine.
Leader schedule tracker. Geo mapper. Latency-aware Jito endpoint selector.
DMA ring buffer abstraction. 4,096 slots. Cache-line aligned. Future FPGA path.
Main binary. EWMA tip calibrator. Prometheus metrics. Health checks. Revenue tracker.
cargo check0 warningscargo clippy --all-targets0 warningscargo build --releaseLTO fat, codegen-units=1cargo test --workspace151 passed, 0 failed
SOLANA NETWORK
│
┌───────────────────────┼───────────────────────┐
│ │ │
▼ ▼ ▼
┌───────────────┐ ┌───────────────┐ ┌───────────────┐
│ AMSTERDAM │ │ NEW YORK │ │ TOKYO │
│ │ │ │ │ │
│ N1 Feed Node │ │ N4 Feed Node │ │ N6 Feed Node │
│ │ Yellowstone│ │ │ Yellowstone│ │ │ Yellowstone│
│ ▼ gRPC <1ms │ │ ▼ gRPC <1ms │ │ ▼ gRPC <1ms │
│ N2 Execute │ │ N5 Execute │ │ N7 Execute │
│ │ 4 Strategy │ │ │ 4 Strategy │ │ │ 4 Strategy │
│ ▼ Workers │ │ ▼ Workers │ │ ▼ Workers │
│ Jito AMS ◄────│ │ Jito NY ◄────│ │ Jito TKO ◄────│
│ │ │ │ │ │
│ N3 Frankfurt │ │ │ │ │
│ (failover) │ │ │ │ │
└───────────────┘ └───────────────┘ └───────────────┘
STRATEGY ENGINES PER NODE:
├── 🥪 Sandwich (Raydium + Orca + Meteora)
├── ⚡ Arbitrage (Cross-DEX price scanner)
├── 💀 Liquidation (Solend + Marginfi + Kamino)
└── 🎯 JIT (Orca Whirlpool CLMM)
SUBMISSION PATHS:
├── Jito Block Engine (primary, atomic bundles)
├── bloXroute BDN (secondary, low latency)
└── Direct TPU/SWQoS (tertiary, Helius priority)
Yellowstone gRPC streams real-time account changes from the validator. Zero-copy deserialization into Seqlock state cache. <4ms total latency.
4 strategy engines run in parallel on pinned cores: Sandwich solver, Arb scanner, Liquidation checker, JIT evaluator. All U256 integer math.
Winning opportunities are packed into atomic Jito bundles. Stack-allocated FixedTx. Leader-aware routing selects the nearest regional endpoint.
EWMA dynamic tips (40–85%) replace static 80%. Multi-path submission: Jito + bloXroute + direct TPU. Per-strategy calibrators optimize cost independently.
isolcpus=4-31
nohz_full=4-31
rcu_nocbs=4-31
transparent_hugepage=never
processor.max_cstate=1
numactl --cpunodebind=0