[fpc-pascal] Re: Multi-threaded project with few locks (no Thread.waitfor). Memory consumption keeps increasing on Ubuntu 10.10 x64

[Michael Van Canneyt]

On Thu, 14 Oct 2010, Andrew Brunner wrote:

>> What are the exact differences from this test to your last one? Would be
>> nice to know that... :)
>
> Every barrier causes a significant increase in time.  In high
> performance parallel computing time is something we minimize.  Big
> reductions in linear execution yield massive performance gains in the
> parallel environments.  So when I removed the FPC barrier that gave me
> a significant increase in performance.  I also used the parent's
> RTLEvent instead of creating one for each thread which added another
> boost.  Then i removed another barrier for adding elements to the
> watch list.  All together, that solved my problem.

Can you share your changes ?

Michael.