PERFORMANCE IN VISUAL STUDIO 2008 + STL.

[Deepak Kapila]

Hi Group,

We recently migrated our project from VS 2003 to VS 2005 and found that our
runtime performance in release mode has degraded by a factor of 3. On
investigation we found that it was due to stl in VS 2005. Building with
STLPort confirmed this. As of now we are not in a position to migrate to
STLPort as we depend on lots of 3rd party libs. Can you give any suggestion
for compiler paramaters or patch which can speed up the stl performance.

Regards
Deepak

[Igor Tandetnik]

Deepak Kapila wrote:
> We recently migrated our project from VS 2003 to VS 2005 and found
> that our runtime performance in release mode has degraded by a factor
> of 3. On investigation we found that it was due to stl in VS 2005.

Turn off checked iterators:

http://msdn.microsoft.com/en-us/library/aa985965.aspx

--
With best wishes,
Igor Tandetnik

With sufficient thrust, pigs fly just fine. However, this is not
necessarily a good idea. It is hard to be sure where they are going to
land, and it could be dangerous sitting under them as they fly
overhead. -- RFC 1925

[Scot T Brennecke]

Igor Tandetnik wrote:
> Deepak Kapila wrote:
>> We recently migrated our project from VS 2003 to VS 2005 and found
>> that our runtime performance in release mode has degraded by a factor
>> of 3. On investigation we found that it was due to stl in VS 2005.
>
> Turn off checked iterators:
>
> http://msdn.microsoft.com/en-us/library/aa985965.aspx
>

Or, at least turn them off in release mode. Having iterator debugging in debug mode can find important mistakes.

[Stephan T. Lavavej [MSFT]]

_SECURE_SCL (aka checked iterators) and _HAS_ITERATOR_DEBUGGING (aka
debugging iterators) are different things.

VC10 will make this story more comprehensible.

STL

"Scot T Brennecke" <Sc...@Spamhater.MVPs.org> wrote in message
news:ejYUf8UO...@TK2MSFTNGP06.phx.gbl...

[Giovanni Dicanio]

Stephan T. Lavavej [MSFT] ha scritto:

> _SECURE_SCL (aka checked iterators) and _HAS_ITERATOR_DEBUGGING (aka
> debugging iterators) are different things.
>
> VC10 will make this story more comprehensible.

This video of yours on Channel 9 makes things clear:

"STL Iterator Debugging and Secure SCL"
http://channel9.msdn.com/shows/Going+Deep/STL-Iterator-Debugging-and-Secure-SCL/

Giovanni