[haiku-bugs] Re: [Haiku] #13697: Laggy performance when SMP is enabled on nightly haiku builds

  • From: "Haiku" <trac@xxxxxxxxxxxx>
  • To: undisclosed-recipients: ;
  • Date: Mon, 27 May 2019 13:51:45 -0000

#13697: Laggy performance when SMP is enabled on nightly haiku builds
----------------------+----------------------------
   Reporter:  addos   |      Owner:  nobody
       Type:  bug     |     Status:  new
   Priority:  normal  |  Milestone:  Unscheduled
  Component:  System  |    Version:  R1/Development
 Resolution:          |   Keywords:
 Blocked By:          |   Blocking:
Has a Patch:  0       |   Platform:  x86
----------------------+----------------------------

Comment (by addos):

 So I have noticed that if I boot with SMP disabled, I see less lag in
 general, but if I play audio or video, things are still choppy. The only
 way I got haiku to actually play audio without interruptions is to disable
 local apic. What exactly is this option doing differently than disabling
 SMP? Is there anyway to disable the local apic while still having SMP
 enabled to see if the OS behaves differently? Is there anything that can
 be determined about what is going wrong with the options I am disabling
 and the behavior I am seeing in Haiku?

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Ticket URL: <https://dev.haiku-os.org/ticket/13697#comment:36>
Haiku <https://dev.haiku-os.org>
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