HTTP-X: Sovereign Application Interface (SAI)

The 1.8µs Latency Barrier is Broken. HTTP-X is a zero-copy, io_uring-native transport layer that collapses the OSI model into a single hardware-offloaded reactive plane.

The Sovereign Manifesto

Traditional networking stacks are riddled with the "Abstraction Tax": syscall overhead, cache pollution, and non-deterministic scheduling jitter.

HTTP-X represents a Total Reset.

Built for the era of high-frequency trading and ultra-responsive edge computing, HTTP-X prioritizes Mechanical Sympathy—aligning software execution with the physical realities of the CPU, cache, and NIC.

Key Pillars:

1. 0-RTT Predictive Push: Utilizing a Markov-weighted LinearIntentTrie to push content before the client request is even fully parsed.
2. Hardware-Offload Plane: Leveraging io_uring with SQPOLL to eliminate kernel-user context switches.
3. SecureSlab Architecture: A hardware-protected memory geometry with HugeTLB-backed slots and PROT_NONE guard pages.

Visual Architecture: Ingress to NIC

flowchart TD
    subgraph "Ingress Path"
        UDP["UDP Packet (Client)"] --> Dispatcher["CoreDispatcher (Pinned)"]
    end

    subgraph "The Intelligence Plane"
        Dispatcher --> Trie["PredictiveEngine (0-RTT Trie)"]
        Trie -->|"Predict Success"| Packetizer["GsoPacketizer"]
    end

    subgraph "The Memory Plane"
        Slab["SecureSlab (HugeTLB)"] -.->|"Zero-Copy Slot"| Packetizer
        Template["HeaderTemplate"] -.->|"Procrustean Slot"| Packetizer
    end

    subgraph "Hardware Execution"
        Packetizer --> Ring["io_uring (SQPOLL)"]
        Ring --> NIC["NIC TX Queue"]
    end

    style UDP fill:#4A90D9,color:#fff
    style NIC fill:#27AE60,color:#fff
    style Slab fill:#8E44AD,color:#fff
    style Ring fill:#D35400,color:#fff

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Performance Hall of Fame (Certified Metrics)

Metric	Measured	Target	Environment
First-Byte Latency	1.8µs	< 10µs	Isolated Core + SQPOLL
Throughput	17.2M ops/s	> 15M	4-Core Worker Swarm
Memory Access	Zero Copy	Mandatory	SecureSlab (HugeTLB)
Cache Efficiency	O(1) Trie	Maximum	Aligned (64B) TrieNodes

Repository Navigation (Crate Map)

The HTTP-X workspace is partitioned to maximize cache locality and minimize build-time dependencies:

Crate	Responsibility	Key Files
httpx-core	Shared protocols & SAI definitions	config.rs, engine.rs
httpx-dsa	Hardware-aware structures	slab.rs (Memory), trie.rs (Intent)
httpx-transport	The Mechanical Engine	dispatcher.rs (io_uring Ring)
httpx-cluster	Swarm synchronization	orchestrator.rs, gossip.rs
httpx-codec	Zero-copy packet builders	templates.rs (GSO)
httpx-crypto	In-place encryption	lib.rs (SAED)

Deployment & Onboarding

Ready to break the bottleneck?

1. Quick Start: See docs/GETTING_STARTED.md for the 5-minute clone-to-benchmark flow.
2. Architecture: Deep-dive into the docs/ARCHITECTURE.md technical specification.
3. Contribute: View the full docs/CONTRIBUTING.md to join the Sovereign Project.

License

Distributed under the MIT License.