Pawel Maslak
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Notes from the engine room. DevOps, .NET, and the occasional rant.

2026-06-02·9 min read

Cold starts and the real cost of Azure Functions: when Premium pays for itself

Premium EP1 was 10.4 times more expensive than Flex Consumption in my benchmark, but it also produced the lowest cold start latency by a wide margin. Here is when that trade off makes sense, and when it does not.

AzureServerlessCostPerformance
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2026-05-30·9 min read

Benchmarking Azure Functions hosting plans: how Consumption, Premium and Flex actually compare

I ran 90,000 warm requests across five Azure Functions hosting plan variants with the same .NET 10 isolated worker. Here is what changed between Consumption, Premium and Flex Consumption, and where the numbers surprised me.

AzureServerless.NETPerformance
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2026-05-23·10 min read

Upgrading a 23.04 VPS through three releases without losing the apps

A complete walkthrough of moving an end-of-life Ubuntu 23.04 VPS to 24.04 LTS in one session: how to point apt at the archive, prepare swap, keep Docker containers alive across three reboots, and clean up the disk afterwards.

LinuxDevOpsUbuntuDocker
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© 2026 Pawel Maslak
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