On a KVM guest backed by a host-side NVMe device, the block layer still presents a scheduler and still has a queue depth, and both are frequently left at defaults…
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After the Free Tier Ends: Mapping the Month-by-Month Cost Curve of AWS, GCP, Oracle and Azure VPS Handovers
Free tiers are not free; they are a 12-month loan with a balloon payment attached. The interesting number is not what you pay in month one, it is what your…
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Verifying a VPS Network: iperf3 Throughput Tests, mtr Route Readings and Disk Floors
Every provider’s order page sells the same four numbers: vCPU count, RAM, disk size and port speed. Three of those four are measurable in under ten minutes with tools that…
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What a $5, $15 and $40 VPS Actually Buys: Steal Time, Disk Latency and Tier Verification
Two plans both read “2 vCPU / 4 GB” and differ by 3× in CPU steal and 10× in disk latency at the same price point. The rental market sorts…
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How to Benchmark Disk IOPS on a VPS with fio: Queue Depth and Latency That Actually Matter
A practical, measurement-first look at how KVM schedules vCPUs: steal time accounting, CPU shares and quotas, CFS throttling, and when CPU pinning actually helps.
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