Re: VC 6.0 ATL projects migration( to VS 2005) and performance concern
Sorry, a typo, I obviously meant you _cannot_ explain it...
--
=====================================
Alexander Nickolov
Microsoft MVP [VC], MCSD
email: agnickolov@mvps.org
MVP VC FAQ: http://www.mvps.org/vcfaq
=====================================
"Alexander Nickolov" <agnickolov@mvps.org> wrote in message
news:ONhlrKEsGHA.1736@TK2MSFTNGP06.phx.gbl...
A difference of 4 times the size means you've screwed up
something. Apparently a lot of your code doesn't get linked
in, you can explain it with performance optimizations alone...
--
=====================================
Alexander Nickolov
Microsoft MVP [VC], MCSD
email: agnickolov@mvps.org
MVP VC FAQ: http://www.mvps.org/vcfaq
=====================================
"Srini" <Srini@discussions.microsoft.com> wrote in message
news:CA0381F5-8C38-440A-A0C7-3ADCB5A9719E@microsoft.com...
I migrated ATL COM dll's written in VC++ 6.0 to VS 2005 using the
following
steps:
1. Opened the .dsp project files using VS 2005 and VS 2005 converted them
to
new project file format vcproj.
2. Compiled and then fixed errors / warnings generated by the compiler.
HERE is the problem:
After all that... for one of the dll, I created a NEW project in VS 2005
and
used the old application source code files and compiled it. It generated
a
LOT SMALLER DLL files and PDB files. I used the same optimizations
between
the NEW project(VS 2005) and the OLD(migrated project from VC 6.0 to VS
2005). What caused the different dll file sizes? Migrated project
generated
dll of size 420KB where as the new VS 2005 project generated the dll of
size
105KB.
Should I recreate new projects for all the old COM components as the
smaller
DLL's may run faster compared to larger dlls and would improve
performance.
With this I am wondering whether the migration is using the new
features/optimizations of the new compiler or not.
Thanks.
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