DPDK/dpdk
Dpdk
DPDK 是一个数据包处理框架和内核旁路网络库，旨在加速网络数据平面性能。它提供了一个用户空间网络栈，将网络数据直接从网卡移动到用户空间，消除了操作系统内核开销，从而实现高吞吐量和低延迟。
该框架利用轮询模式驱动架构，用持续轮询机制取代了中断驱动的网络处理。这种方法允许在内核之外实现网络功能和协议。
该项目涵盖了高性能数据包处理、网络功能虚拟化以及防火墙和负载均衡器等自定义网络设备开发的功能。
Features
- Packet Processing Frameworks - Provides a high-performance framework for accelerating packet processing by moving network data directly from the NIC to user space.
- Poll-Mode Drivers - Employs a poll-mode driver architecture that continuously checks hardware for packets to eliminate interrupt latency.
- Network Stack Bypasses - Implements a networking library that bypasses the standard kernel network stack to achieve high throughput.
- User-Space Network Interface Access - Moves network driver logic from the kernel to user space to achieve faster data transfer.
- High-Performance Packet Processing - Handles massive volumes of network traffic by bypassing the OS kernel to reduce latency and CPU overhead.
- User-Space Packet Processing - Provides high-speed network packet manipulation by bypassing standard kernel overhead.
- Direct I/O Access - Provides direct I/O access to move network traffic from hardware to user-space memory, bypassing the kernel.
- User-Space Implementations - Provides tools for implementing network protocols in user space to maximize throughput and avoid kernel context switches.
- Zero-Copy Buffers - Implements zero-copy buffer management by passing pointers to packet data across processing stages.
- Single-Producer Single-Consumer Queues - Implements single-producer single-consumer lockless ring buffers for high-speed data exchange between CPU cores.
- Network Appliance Frameworks - Provides a framework for building specialized network appliances such as firewalls and load balancers.
- Hugepage Allocations - Implements hugepage-based memory allocation to improve memory access speed and reduce TLB misses for packet buffers.
- Virtualization Networking - Enables the creation of virtualized network services that process packets at near-wire speed.
- Run-To-Completion Models - Uses a run-to-completion model by assigning a packet to a single CPU core for all processing steps.
- 网络库 - Libraries and drivers for fast packet processing.
