Taming the FFmpeg Stampede: Writing a Custom eBPF Scheduler with Linux 6.12 sched_ext
Have you ever launched 20–30 concurrent ffmpeg encoding jobs on a beefy multi-core server, only to watch the entire system grind to a halt? Even on…
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field-cage: a local-first alternative for GitHub Actions egress control
I built field-cage , an MIT-licensed eBPF agent that monitors and restricts outbound connections from Linux GitHub Actions runners. It overlaps with…
I Replaced kube-proxy with eBPF in Production (And Why My Monitoring Went Blind for 6 Hours)
I Replaced kube-proxy with eBPF in Production (And Why My Monitoring Went Blind for 6 Hours) From a "simple" Cilium upgrade to a 6-hour outage where…
A Differential Test Harness for Native vs. Generic XDP: Methodology and Baseline
Native XDP and generic SKB-mode XDP are not the same thing in practice. The same BPF program can pass the verifier and still behave differently depe…
nvidia-smi Reports 97% Utilization While the GPU Sits Idle
TL;DR A GPU shows 97% utilization in nvidia-smi , but training throughput is a fraction of what benchmarks promise. The GPU is not computing; it is…
GPU Incident at 3am: eBPF Tracing from Page to Root Cause in 60 Seconds
TL;DR 3am page: GPU training pipeline missed its SLA. Datadog shows 95% GPU utilization. nvidia-smi agrees. Everything looks green, but the job is 3…
[Перевод] Kubernetes Gateway API в 2026 году: сравниваем Envoy Gateway, Istio, Cilium, Kong и NGINX Gateway Fabric
Сейчас ландшафт сетей Kubernetes переживает самую значительную трансформацию со времен появления Ingress API в 2015 году. Gateway API прошел путь от…
eBPF Gives Kubernetes Full Network Visibility Without the Sidecar CPU Tax
Service mesh adoption in Kubernetes hit a wall in 2025. Not because teams stopped wanting visibility, but because the bill arrived. Every pod in an…