Your VPS plan says 1 Gbps, but iperf3 reports 180 Mbps. TCP retransmits climb under load, large downloads stall, and dmesg shows dropped frames on the virtual NIC. Before you…
Read MoreCPU Steal on VPS: Measuring, Diagnosing, and Mitigating Hypervisor Contention
If you have ever watched top show 30% of your CPU as %st while your site crawls, you have met CPU steal. Steal is the time your virtual machine wanted…
Read MoreMeasuring Sustained CPU Steal on a VPS and Choosing the Right Fix
CPU steal is the percentage of time your virtual machine wanted to run but the hypervisor gave the physical CPU core to another tenant. On shared VPS infrastructure it is…
Read MoreSwap Space on a VPS: How Much to Configure and When It Hurts Performance
Swap is the most misunderstood resource on a small VPS. Configured correctly, it is a safety net that prevents the OOM killer from terminating your database during a traffic spike….
Read MoreNginx Tuning for a Small VPS: Worker Processes, Buffers, and Timeouts That Matter
On a 1–2 vCPU, 1–2 GB VPS, the default nginx configuration wastes memory and lets slow clients tie up workers that should be serving real traffic. The good news: a…
Read MoreHow to Enable HTTP/3 and QUIC on Nginx and Caddy
HTTP/3 runs over QUIC, a UDP-based transport with TLS 1.3 built in. The payoff for your visitors is concrete: connection setup takes one round trip instead of two, repeat visits…
Read MoreWhich Linux Kernel Tunables Actually Move a Benchmark on a VPS (34 Tested, 8 Kept)
The kernel exposes roughly 1,500 tunables under /proc/sys. On a fresh 2 vCPU / 4 GB KVM instance running Debian 12, exactly six moved a number by more than 5%…
Read MoreNginx vs Apache VPS Benchmark: Concurrency, Memory, and MPM Tuning
Most Nginx-vs-Apache comparisons stop at “Nginx is faster” and leave you to guess. The useful question is narrower: at what concurrency, on how much RAM, does each server’s process model…
Read MoreVirtual Disk Performance Tuning: Filesystem, Scheduler and Mount Options Verified with fio
Storage is the component most often misdiagnosed on a virtual server, because the visible device is a virtual block device whose latency, queue depth and throttling behaviour are all decided…
Read MoreMonitoring with Prometheus and Grafana on a VPS: Metrics Collection for Small Deployments
You do not need a commercial monitoring platform to keep an eye on a small VPS. Prometheus and Grafana together form a complete, self-hosted metrics stack: Prometheus scrapes and stores…
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