[vtk-developers] [vtkusers] Can we drop Visual Studio 6 support?

Philippe P. Pebay pppebay at sandia.gov
Fri Apr 17 17:16:36 EDT 2009


Hello Bill,

There is a 1:2 factor:
## Completed 1000000000 push_back vs. += operations.
    Wall times:
     push_back: 7 sec.
     +=: 15 sec.

Now, I will agree that my MPI application is not 'typical'.

P

Bill Lorensen wrote:
> Isn't a character a string of one character? Tell me the performance
> hit in a typical application.
> 
> Bill
> 
> On Fri, Apr 17, 2009 at 4:28 PM, Philippe P. Pebay <pppebay at sandia.gov> wrote:
>> No, unfortunately it does not. It appends another string.
>> On the other hand, push_back() allows for the addition of one character at a
>> time. There is therefore less overhead. This matters when serializing
>> multiple packets prior to MPI communication.
>> VS 6.0 does not support push_back(). And as I only figured out this morning,
>> it does not support clear() either. This is annoying.
>>
>> P
>>
>> Bill Lorensen wrote:
>>> Doesn't += do that?
>>>
>>> On Fri, Apr 17, 2009 at 3:33 PM, Pebay, Philippe P <pppebay at sandia.gov>
>>> wrote:
>>>>>> Besides the big red dahsboard few weeks ago with the unicode features,
>>>>>> there is no VS60 specific break. The last few days dashboard errors
>>>>>> were on most platforms.
>>>> Yes, there is one: push_back on strings.
>>>>
>>>> P
>>>>
>>>>
>>>>
>>>>
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>>
>> --
>> Philippe Pébay
>> Sandia National Laboratories
>>
>>
>>
> 


-- 
Philippe Pébay
Sandia National Laboratories





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