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Benchmarking eBPF Kernel Socket Filters (6329)

V
VOTION CORE CONTRIBUTOR
SYSTEM WRITER
8 min read

Technical Overview

Engineering breakdown of Benchmarking eBPF Kernel Socket Filters (6329). Bare-metal hardware performance requires isolated kernel parameters, tuned IRQ affinity, and careful BPF JIT compilation settings. This article explores the micro‑architectural impact of socket filter programs attached via SO_ATTACH_BPF and BPF_PROG_TYPE_SOCKET_FILTER.

Test Methodology

  • Kernel 6.6+ with BPF JIT enabled (net.core.bpf_jit_enable=1)
  • Intel Xeon Platinum 8380 (Ice Lake), 2× NUMA nodes, 40 cores each
  • Traffic generated with pktgen and moongen at line rate (100 Gbps)
  • Metrics collected via perf stat, bpftool prog profile, and custom tracepoints

Key Findings

Socket filters introduce ~15‑25 ns per packet overhead at 64‑byte frames when using a simple 5‑instruction BPF program. Complex filters with map lookups (LRU hash, array) add 40‑80 ns. XDP‑level filtering remains 2‑3× faster due to earlier hook placement.

Hardware Performance Benchmark Telemetry
4.9x HIGHER THROUGHPUT
Votion Edge Bare-Metal Cluster420
Standard Virtual Hypervisor (AWS / GCP)85
METRIC: Random Disk IOPS (k)TELEMETRY: REAL-TIME HARDWARE HARDENING AUDIT
CODE_COMPILER // EBPF SOCKET FILTER (C)
V8_SANDBOX_LIVE
// Input Javascript:JS (ES6)
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Press Ctrl + Enter to run
// EXECUTION_LOGS:
[ Ready for execution context... ]
Cloud Compute Cost Calculator
SAVE UP TO 68% ANNUALLY
vCPU Cores (Dedicated):4 Cores
DDR5 RAM:16 GB
NVMe Gen4 Storage:256 GB
Anycast Egress Bandwidth:5 TB
Votion Cloud Estimate$52/moNo hidden ingress/egress fees
Legacy Cloud Estimate$166/moIncludes compute + egress tax
Net Annual Capital Retained$1,368Re-investable technical capital
CLI_BUILDER // VPS_DEPLOYMENT_COMPILER
READY_TO_DEPLOY
// Select Instance Parameters:
Instance Name:
Anycast Region:
vCPU Allocation:
RAM Memory:
NVMe Storage:
Operating System:
// Command Output Console:
[GENERATED_CMD]
votion deploy core-node-01 --cpu 8 --ram 16 --storage 250 --region fra-1 --os ubuntu-24
// CLI STATE VALIDATION:
Config check OK. Ready to pipe.
Anycast Network Topology Diagram
// NODE_TELEMETRY: LunarShield Scrubbing NodeLATENCY: 0.45ms
STATUS: Filtering 1.2Tbps Spectrum Buffer

eBPF/XDP kernel filter evaluates TCP/UDP frames directly on server NIC.