Devuan Jessie beta released

Posted May 3, 2016 10:55 UTC (Tue) by paulj (subscriber, #341)
In reply to: Devuan Jessie beta released by anselm
Parent article: Devuan Jessie beta released

journald is quite nice.

As for systemd making boot faster by aggressively parallelising things, as per another sub-thread, this has the downside of exposing utilities to parallelism that they were never designed to handle, which can actually *severely* _slow_ boot. Again, my experience with systemd is that my boot has gotten *many times* slower.

Even when everything behaves, I've noticed in the past the massively parallel approach can thrash the disk somewhat. I'm not entirely convinced throughput of boot is always as improved by this as it could be. It might be better to limit the number of parallel launches somewhat (if systemd doesn't already know to do this).

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Devuan Jessie beta released

Posted May 3, 2016 12:03 UTC (Tue) by pizza (subscriber, #46) [Link]

> Again, my experience with systemd is that my boot has gotten *many times* slower.

I don't doubt that you're seeing these results, but it appears to be a rare exception given the overwhelming body of evidence showing large improvements in boot times -- Including *every* experience I've had, from relatively tiny embedded systems to big servers and everything in between.

I suspect that the problem isn't actually due to systemd itself, or even its aggressive parallelism, instead being a misbehaving component whose failure/delay was effectively ignored in the past. But without additional legwork on your part to identify what's going on, the situation isn't likely to change.

(As an aside, the 12-core workstation under my desk at the office boots up Fedora 23 faster from spinning rust than CentOS6 does on an SSD, despite the former actually starting up more stuff and attaching some network mounts..)