https://blog.gntech.me/tags/performance/ Recent content in Performance on GnTech Blog Hugo en-us Thu, 18 Jun 2026 14:30:00 -0400 https://blog.gntech.me/posts/2026-06-18-linux-tcp-bbr-congestion-control-proxmox-docker-lxc/ Thu, 18 Jun 2026 14:30:00 -0400 https://blog.gntech.me/posts/2026-06-18-linux-tcp-bbr-congestion-control-proxmox-docker-lxc/ Step-by-step guide to enabling TCP BBR congestion control on Linux for Proxmox hosts, Docker containers, and LXC. Includes sysctl tuning, kernel module loading, iperf3 benchmarks, and practical performance gains for homelab and remote streaming. https://blog.gntech.me/posts/2026-06-17-cgroups-v2-docker-container-resource-limits/ Wed, 17 Jun 2026 13:30:00 -0400 https://blog.gntech.me/posts/2026-06-17-cgroups-v2-docker-container-resource-limits/ Deep dive into Linux cgroups v2 for Docker container resource control — memory.max/high, CPU quotas, I/O weights, PSI monitoring, and docker-compose deploy.resources configurations for homelab. https://blog.gntech.me/posts/2026-06-16-container-runtimes-runc-vs-crun-docker/ Tue, 16 Jun 2026 14:30:00 -0400 https://blog.gntech.me/posts/2026-06-16-container-runtimes-runc-vs-crun-docker/ Compare runc and crun container runtimes for Docker in your homelab. Benchmark startup times, memory usage, and io_uring support. Switch runtimes in minutes with a simple daemon.json change. https://blog.gntech.me/posts/2026-06-12-proxmox-vm-disk-performance-benchmark/ Fri, 12 Jun 2026 16:30:00 -0400 https://blog.gntech.me/posts/2026-06-12-proxmox-vm-disk-performance-benchmark/ Benchmark and tune Proxmox VM disk performance. Compare VirtIO-blk vs VirtIO-SCSI single controllers, IO threads, aio modes, and cache settings with fio benchmark results. https://blog.gntech.me/posts/2026-06-09-linux-network-performance-tuning-homelab/ Tue, 09 Jun 2026 17:00:00 -0400 https://blog.gntech.me/posts/2026-06-09-linux-network-performance-tuning-homelab/ Optimize Linux network performance on Proxmox and Docker hosts with ethtool ring buffer tuning, irqbalance configuration, multiqueue RSS/RPS, and tc traffic shaping — with benchmarks and systemd persistence. https://blog.gntech.me/posts/2026-05-31-linux-cpu-frequency-scaling-power-management-homelab/ Sun, 31 May 2026 17:00:00 -0400 https://blog.gntech.me/posts/2026-05-31-linux-cpu-frequency-scaling-power-management-homelab/ Optimize Linux CPU frequency scaling and power management for 24/7 homelab servers. Covers cpupower governors, intel_pstate and amd_pstate_epp drivers, Turbo Boost control, C-states, and performance tuning with real commands. https://blog.gntech.me/posts/2026-05-30-netdata-docker-monitoring-homelab/ Sat, 30 May 2026 07:00:00 -0400 https://blog.gntech.me/posts/2026-05-30-netdata-docker-monitoring-homelab/ Deploy Netdata with Docker Compose for real-time container monitoring. Per-second metrics, health alarms, auto-detection, and parent-child streaming for multi-host homelab observability. https://blog.gntech.me/posts/2026-05-26-zfs-pool-design-proxmox-homelab/ Tue, 26 May 2026 11:00:00 +0000 https://blog.gntech.me/posts/2026-05-26-zfs-pool-design-proxmox-homelab/ Design a ZFS pool for your Proxmox homelab — choose mirrors vs RAID-Z, set ashift correctly, tune recordsize and volblocksize, size the ARC, and add SLOG or L2ARC for better performance. https://blog.gntech.me/posts/2026-05-25-linux-disk-io-performance-tuning/ Mon, 25 May 2026 18:30:00 +0000 https://blog.gntech.me/posts/2026-05-25-linux-disk-io-performance-tuning/ Optimize Linux disk I/O for your homelab — choose the right IO scheduler for NVMe vs HDD, tune mount options for latency, monitor with iostat/ioping, and throttle container IO with cgroups. https://blog.gntech.me/posts/2026-05-24-systemd-service-hardening-linux/ Sun, 24 May 2026 17:00:00 -0400 https://blog.gntech.me/posts/2026-05-24-systemd-service-hardening-linux/ Complete guide to hardening Linux systemd services — sandboxing with ProtectHome and ProtectSystem, capability reduction with CapabilityBoundingSet, NoNewPrivileges, PrivateTmp, systemd-analyze security scoring, and real hardened service files for homelab daemons. https://blog.gntech.me/posts/2026-05-24-proxmox-lxc-resource-management/ Sun, 24 May 2026 07:00:00 -0400 https://blog.gntech.me/posts/2026-05-24-proxmox-lxc-resource-management/ Complete guide to Proxmox LXC resource management — CPU pinning and cgroups CPU quotas, memory limits and swap control, disk I/O throttling, and ZFS quota/refquota tuning for containers. https://blog.gntech.me/posts/2026-05-23-linux-storage-benchmarking/ Sat, 23 May 2026 12:00:00 -0400 https://blog.gntech.me/posts/2026-05-23-linux-storage-benchmarking/ Benchmark storage performance in your homelab with fio, ioping, hdparm, and dd. Measure raw disk IOPS, ZFS pool throughput, NFS mount latency, and Docker volume performance with real commands and repeatable scripts. https://blog.gntech.me/posts/2026-05-23-docker-gpu-acceleration-homelab/ Sat, 23 May 2026 07:00:00 -0400 https://blog.gntech.me/posts/2026-05-23-docker-gpu-acceleration-homelab/ Enable GPU acceleration in Docker containers using the NVIDIA Container Toolkit. Covers installation, Docker Compose GPU device config, Ollama AI inference, Jellyfin transcoding, and troubleshooting. https://blog.gntech.me/posts/2026-05-22-proxmox-9-2-upgrade-guide/ Fri, 22 May 2026 07:00:00 -0400 https://blog.gntech.me/posts/2026-05-22-proxmox-9-2-upgrade-guide/ Step-by-step guide to upgrading Proxmox VE from 8.x to 9.2, covering the new Dynamic Load Balancer, SDN WireGuard fabrics, kernel 7.0 migration, LXC fixes, and post-upgrade configuration for homelab clusters. https://blog.gntech.me/posts/2026-05-21-docker-buildkit-cache-optimization/ Thu, 21 May 2026 09:30:00 -0400 https://blog.gntech.me/posts/2026-05-21-docker-buildkit-cache-optimization/ Speed up Docker builds with BuildKit cache mounts, inline and registry cache export, and practical Dockerfile patterns for homelab CI/CD that cut build times by 80%. https://blog.gntech.me/posts/2026-05-20-nginx-reverse-proxy-docker/ Wed, 20 May 2026 17:00:00 -0400 https://blog.gntech.me/posts/2026-05-20-nginx-reverse-proxy-docker/ Deploy Nginx with Docker Compose as a high-performance reverse proxy and caching layer for your homelab services. Covers caching, SSL, gzip, performance tuning, and multi-upstream configuration. https://blog.gntech.me/posts/2026-05-20-wireguard-kernel-performance-tuning/ Wed, 20 May 2026 14:30:00 -0400 https://blog.gntech.me/posts/2026-05-20-wireguard-kernel-performance-tuning/ Maximize WireGuard VPN throughput on Linux with kernel sysctl tuning, BBR congestion control, UDP buffer optimization, MTU/MSS clamping, and iperf3 benchmarking — practical configurations for homelab and production. https://blog.gntech.me/posts/2026-05-20-valkey-docker-deployment-homelab/ Wed, 20 May 2026 07:00:00 -0400 https://blog.gntech.me/posts/2026-05-20-valkey-docker-deployment-homelab/ Deploy Valkey 9.1 with Docker Compose for a high-performance, Redis-compatible cache in your homelab. Covers configuration, ACL security, performance tuning, and the new 9.1 features. https://blog.gntech.me/posts/2026-05-18-proxmox-gpu-passthrough-guide/ Mon, 18 May 2026 10:00:00 -0400 https://blog.gntech.me/posts/2026-05-18-proxmox-gpu-passthrough-guide/ Dedicate a physical GPU to a Proxmox VM for AI inference, transcoding, or gaming. Step-by-step IOMMU, VFIO binding, NVIDIA fixes, and automated VM config. https://blog.gntech.me/posts/2026-05-17-linux-kernel-performance-tuning/ Sun, 17 May 2026 17:00:00 -0400 https://blog.gntech.me/posts/2026-05-17-linux-kernel-performance-tuning/ Practical Linux kernel performance tuning for homelab servers — TCP BBR, sysctl network optimizations, I/O schedulers, memory management, and CPU governor tuning with real benchmarks and configuration files.