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Subject: Re: MSVC++ question

Author: Vincent Vega

Date: 14:26:44 04/26/00

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On April 26, 2000 at 15:07:23, Tom Kerrigan wrote:

>On April 26, 2000 at 14:02:15, Bo Persson wrote:
>
>>On April 26, 2000 at 02:53:28, Landon Rabern wrote:
>>
>>>Does the standard version of Microsoft Visual C++ have a different compiler than
>>>the professional version?  If so is it slower is the standard version?
>>>
>>>Thanks,
>>>
>>>Landon W. Rabern
>>
>>Yes, the Standard (or Student) version is for debug mode only. It does not
>>contain the code optimizer. The debug code runs maybe 5-10 times slower...
>>
>>
>>Bo Persson
>>bop@malmo.mail.telia.com
>
>I have found that turning on optimizations in my program "only" increases the
>speed by a factor of 2, not 5-10.
>
>-Tom

The speedup could be larger if the code has a lot of statements like #ifdef
_DEBUG and ASSERT().  But on the whole I've seen 2-3 range most often, not 5-10.



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