Linked by diegocg on Sun 13th May 2012 23:48 UTC
Linux Lennart Poettering, the author of systemd, has announced: "I just put a first version of a wiki document together that lists a couple of easy optimizations to get your boot times down to [less than] 2s. It also includes a list of suggested things to hack on to get even quicker boot-ups."
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RE: As a kernel dev myself
by ssokolow on Mon 14th May 2012 02:54 UTC in reply to "As a kernel dev myself"
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(4. Network delay)
I hesitate to add this one, since an unresponsive network should not really cause local bootup delays. But in fact I have seen cases of it where serially loaded processes get blocked due to a process waiting on DHCP or a network connection.

I've also occasionally run into parallel loading where neither the developers nor the system were smart enough to take prior boots into account, so the network init got done late enough that, before the network init finished, the init system had started to run out of tasks which could be run in parallel without waiting for the network to be up.

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