Infrastructure●●●Banger
DPDK vs. Af_XDP Latency Benchmarks Tested on Real NICs
Unified C++20 API for DPDK and AF_XDP with zero-cost template specialization.
WizardryBig BrainNiche Gem
CoreCppEngineer
2112d ago
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GitHub Repository
A low latency deterministic networking library developed with backends: Solarflare ef_vi, DPDK, Verbs, AF_XDP and Packet MMAP.
7 starsC++
Ef_vi vs. DPDK vs. AF_XDP – 24h tail-latency benchmarks on real NICs
by CoreCppEngineer·Jul 23, 2026·2 points·1 comment
AI Analysis
●●●BangerWizardryNiche Gem
Swaps DPDK for ef_vi via config file with zero code changes and verified 1.8µs latency.
Strengths
- •Template-based transport selection inlines to raw driver calls with no vtable overhead.
- •Startup verification reads kernel state back to confirm busy-poll and zero-copy are active.
- •24-hour tail-latency benchmarks expose specific driver bugs across four different NICs.
Weaknesses
- •Windows support is non-existent; this is strictly a Linux kernel-bypass tool.
- •Requires specific NIC hardware (Solarflare, Mellanox) to unlock the advertised performance.
Category
Target Audience
Systems engineers, HFT developers, network stack maintainers
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DPDK · io_uring · netmap
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