Re: [BLACKBOX] Real time & garbage collection

From: [at]} <Wojtek>
Date: Tue, 28 Jun 2011 18:40:52 -0400

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Doug:

make sure you turn off all the helpful stuff on your computer, like
real-time virus protection, parental control, various notifiers which may
be watching you, etc. Try making sure that some resident program is not
taking over your CPU. Get rid of everything what you can get rid of. Look
at the Task Manager with and without BB running. Is there some process
which is periodically kicking in, like a resident virus protector? Perhaps
even try running BB in the "Windows safe mode".

I am saying this because I was getting annoyed with programs like wuauclt
or AcroTray, which were periodically doing something with my computer
without me being quite aware what they were doing. I could see periodic
bursts of activity by these programs. If your machine is loaded to the
rim, such bursts of activity involve swapping to disk, and then you will
see sudden slowdowns.

If the pauses are associated with disk activity, then I would suspect some
resident program is kicking in.

Not sure if this is your case, but who knows.

Wojtek

> Ramiras,
>
> I am running on BB 1.6RC5 under Windows XP service pack 2
> BUT virtualized using Parallels Desktop for Mac.
> However, I just got feed back from the customer that they also
> are seem pauses and they are not using a virtualized system.
>
> I'll dig into Kernel.watch.  Thank you.
>
> -Doug Danforth
>
>
> On 6/28/2011 3:46 AM, Romiras wrote: For debugging of
> module Kernel, look at procedure Kernel.watcher and constant
> debug. By setting them a proper values, you can notify your
> program when garbage collection is performed (in log, for
> example). If you do, you must recompile a module Kernel.
> The garbage collection is invoked in the following
> situations: program
> want to allocate memory dynamically for some
> object insufficient
> resources (memory or too many open file
> handles) or module is unloaded
> before a program exits (calling finalizers)
> by forcing manual calling
> of Services.Collect or Kernel.Collect
> Try put NEW out of
> loop-computations, e.g. preallocate memory for
> dynamical objects before intensive computations.
> Use static objects, so a GC will not allocate memory at
> run time for them.
> The latency may come from one of levels or even all of
> them: hardware, system software (OS, drivers) or
> application software (particular program).
> Which version of BlackBox you tried your software on:
> 1.5, 1.6 RC5 or RC6? Version 1.6 RC6 includes
> improved garbage collection as far as I know.
> Which version of OS you and author of the face
> dll tested on?
>
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Received on Wed Jun 29 2011 - 00:40:52 UTC