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Why and how we’re migrating many of our servers from Linux to the BSDs
The slides, the video, and the text behind my presentation at EuroBSDCon 2024 - 'Why and how we're migrating many of our servers from Linux to the BSDs.'
The first noticeable effect was a reduction in resources used by the host to handle VM traffic — as expected, only FreeBSD’s basic processes and bhyve were running — but at the same time, there was a significant increase in I/O performance, further enhanced by switching the virtual disk driver from virtio to NVMe. Many of their VMs handled simple workloads — PHP websites, or Java-based management systems (running on Tomcat), device monitoring software for industrial machinery, etc. They learned to manage the resources at their disposal without repeating the usual mantra of “we need mooooar powaaaar!” every time there’s a problem, a slowdown, or a storage overload.
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