[haiku-bugs] Re: [Haiku] #12258: [launch_daemon] increased boot time
- From: "mmlr" <trac@xxxxxxxxxxxx>
- Date: Mon, 31 Aug 2015 06:20:57 -0000
#12258: [launch_daemon] increased boot time
-------------------------------------+----------------------------
Reporter: diver | Owner: axeld
Type: bug | Status: closed
Priority: normal | Milestone: Unscheduled
Component: Servers/launch_daemon | Version: R1/Development
Resolution: fixed | Keywords:
Blocked By: | Blocking:
Has a Patch: 0 | Platform: All
-------------------------------------+----------------------------
Changes (by mmlr):
* status: new => closed
* resolution: => fixed
Comment:
Replying to [comment:35 pulkomandy]:
So I think we can close this ticket now and try to optimize the early
parts of the boot process to get it back to alpha4 speed. According to
vidrep's benchmarks the launch daemon only causes a 200ms increase in boot
time, and I guess this is with only one CPU?
Yes, let's close this.
Note that the alpha4 had serial debugging disabled by default, so if these
tests were all with default settings, it's fully expected to have a boot
time difference of several seconds. Local tests showed that boot time
dropped from the above mentioned 10 to somewhat over 6 seconds when serial
debugging was disabled, so it can be quite dramatic (because serial output
is really slow and there's a lot of it, sometimes more and sometimes less
depending on the drivers involved).
So for the sake of comparison it'd be interesting to have the boot times
of a post launch_daemon build with serial debugging disabled in
{{{/boot/home/config/settings/kernel/drivers/kernel}}}.
--
Ticket URL: <
https://dev.haiku-os.org/ticket/12258#comment:36>
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https://dev.haiku-os.org>
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