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From: "Dave Korn" <dave DOT korn AT artimi DOT com>
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Subject: RE: slow bash spawn
Date: Tue, 20 Mar 2007 14:39:39 -0000
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On 20 March 2007 08:17, Marc Compere wrote:

> Well, it seems I've found the problem, or at least a big component of
> the problem.  Turns out it is likely not (directly) related to cygwin
> code but some other interaction between cygwin and the OS as a result of
> a Sonic Solutions DLA process running.  DLA apparantly stands for Drive
> Letter Access Component.  Exact process name is
> c:\windows\system32\dla\dlactrlw.exe.  Snapshot attached.
> 
> Being fed up with long XP boot-up times I had downloaded Autoruns and
> removed many, seemingly unnecessary startup processes and services.
> Oops, apparantly dlactrlw.exe is necessary for Cygwin to run quickly as
> usual.  Never would have guessed - still don't quite understand how a
> Sonic cd burner software (I presume) causes the slow down, but it's
> pretty repeatable.  5 reboots later there's a 1-to-1 correspondence with
> this process and fast cygwin bash-related commands, including
> ./configure and make.
> 
> bash --login -i -x takes 33 seconds with DLA turned off (via Autoruns
> checkbox) and takes about 5.5 seconds with this process turned on.  Go
> figure?


  That's most likely the difference between merely disabling one component of
an application, leaving the remaining ones installed and broken, and properly
uninstalling it.  Perhaps something that hooks into every process in the
system is calling out to the DLA component and waiting for a timeout before it
fails.

  I'll add DLA to the theoretical cygwin-list-of-dodgy-apps.	

    cheers,
      DaveK
-- 
Can't think of a witty .sigline today....


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