[haiku-bugs] Re: [Haiku] #15585: IO stall for a long time during creation or deletion of many small files

  • From: "Haiku" <trac@xxxxxxxxxxxx>
  • To: undisclosed-recipients: ;
  • Date: Thu, 20 Feb 2020 20:18:06 -0000

#15585: IO stall for a long time during creation or deletion of many small files
-----------------------------+----------------------------
   Reporter:  X512           |      Owner:  nobody
       Type:  bug            |     Status:  new
   Priority:  normal         |  Milestone:  Unscheduled
  Component:  System/Kernel  |    Version:  R1/Development
 Resolution:                 |   Keywords:
 Blocked By:                 |   Blocking:
Has a Patch:  0              |   Platform:  All
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Comment (by waddlesplash):

 X512: One thing you may find useful in investigating this is the
 "scheduling recorder". You have to build it manually ("jam
 scheduling_recorder"), and then run it (by itself and Ctrl+C to stop), or
 with some other app. It records all threads and everything they wait on,
 so then you can run the DebugAnalyzer (also needs to be built manually) on
 the output of scheduling_recorder, you can look at what threads were
 waiting on and for how long, both in overview and individually.
-- 
Ticket URL: <https://dev.haiku-os.org/ticket/15585#comment:23>
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