F-Stack/f-stack
F Stack
f-stack is a kernel-bypass framework and user-space TCP/IP stack designed to increase packet processing speeds and overall throughput. It utilizes DPDK to route network traffic directly to user space and integrates a transplanted FreeBSD network stack to handle transport and network layer protocols outside of the host operating system.
The project provides a socket API compatibility layer that allows standard network applications to run on a high-performance backend without requiring code changes. It also features a coroutine-based network API and micro-threading interface to manage asynchronous network IO and stateful tasks without the use of complex callback logic.
The framework covers high-throughput TCP/IP implementation, concurrent connection scaling, and event-driven IO multiplexing. It includes routing configuration capabilities to determine whether incoming traffic is handled by the user-space stack or the standard kernel network stack.
Features
- Packet Processing Frameworks - Provides a high-performance framework that routes network traffic to user space via DPDK to eliminate kernel overhead.
- User-Space Packet Processing - Directs network traffic to user space via DPDK to eliminate kernel overhead and minimize latency.
- IO Multiplexing - Utilizes high-efficiency notification interfaces to monitor multiple network descriptors on a single thread.
- DPDK-Based User-Space Network Stacks - Provides a high-performance network stack that bypasses the OS kernel using DPDK and a FreeBSD TCP/IP implementation.
- High-Throughput TCP/IP Implementations - Implements a FreeBSD network stack in user space to handle massive data throughput and millions of concurrent connections.
- Network Stack Bypasses - Bypasses the standard kernel network stack to process packets directly in user space for reduced latency.
- DPDK Integrations - Utilizes the DPDK framework to bypass the kernel networking stack for high-performance networking tools.
- Socket API Abstractions - Provides a compatibility layer with standard BSD socket interfaces to support existing network applications.
- Coroutine-Based Sockets - Provides network sockets integrated with a coroutine scheduler for non-blocking asynchronous communication.
- API Compatibility Layers - Implements a compatibility layer allowing standard socket applications to run on a high-performance user-space backend without code changes.
- Coroutine-Based Asynchronous I/O - Provides a coroutine-based model to manage high-concurrency network I/O without blocking system threads.
- TCP/IP Stacks - Implements a full TCP/IP stack based on FreeBSD to manage complex protocol logic and data transmission.
- User-Space Implementations - Integrates a transplanted FreeBSD network stack to handle transport and network layer protocols in user space.
- Micro-Threaded Execution - Executes stateful high-latency operations using a micro-threading model to maintain performance without complex callback logic.
- Micro-Threaded Flow Simplification - Simplifies complex asynchronous network flows using a micro-threading interface to maintain high performance in stateful applications.
- Concurrent State Coordination - Provides a micro-threading interface for managing shared state and coordinating tasks in asynchronous network applications.
- Event-Driven I/O - Uses event notification loops to handle high-concurrency network connections in real-time.
- High-Performance Backend Integrations - Enables standard software services to benefit from a high-performance network backend without requiring code modifications.
- High-Concurrency Networking - Enables the processing of millions of simultaneous requests per second through a high-performance user-space stack.
- High-Throughput Network Engineering - Maximizes data transfer rates and concurrency by routing network traffic directly to user space.
- Network Application Compatibility Layers - Provides compatible interfaces allowing seamless deployment of standard software services in high-performance network environments.
- User-Space Stack Routing - Implements routing logic to toggle between the standard kernel network stack and the high-performance user-space stack.
- Embedded Network Stacks - Embeds a full TCP/IP stack directly within the application to remove dependencies on the host operating system.
- Kernel Bypass Datapaths - Connects software services to a high-performance network backend via kernel-bypass datapaths.
- Network Event Monitoring Schedulers - Employs low-level schedulers to monitor and trigger network read, write, and close events on connections.
- Asynchronous Network Programming - Implements an asynchronous programming model for managing stateful network operations and concurrent tasks.
- Protocol Stacks - High-performance user-space protocol stack based on DPDK.
