rust-dpdk
DPDK vs 内核网络栈
| 特性 | 内核网络栈 | DPDK |
|---|---|---|
| 上下文切换 | 每次包都切换 | 轮询模式，无切换 |
| 内存拷贝 | 多次拷贝 | 零拷贝 |
| 中断 | 频繁中断 | 轮询 (poll mode driver) |
| 延迟 | 较高 | 微秒级 |
| 吞吐量 | 万级 PPS | 百万级 PPS |
| CPU 利用率 | 较低但有开销 | 高但高效 |
核心组件
// DPDK 核心结构
struct DpdkContext {
memory_pool: Mempool, // 内存池
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