That's what I was expecting. That's what worries me
I don't do much in the events.
I copy the pointer for element names and the string for text
and a small bit of management to make sure there are no leaks or other nastiness
I am doing a progressive parse but I wouldn't have thought that would matter
just as an example here is the code I have in the characters function
this is as complex as it gets
I copy the data into a vector of chars and set a variable
the vector is only ever cleared (not fully released)
so once the memory has been got once it will remain available for the next time
////////////////////////////////////
if (m_LastEvent != eventTextElement_e)
{
m_acData.assign(&pcText[0], &pcText[uiLength]);
m_acData.push_back(L'\0');
}
else
{
// insert infront of the '\0'
m_acData.insert(--m_acData.end(), &pcText[0], &pcText[uiLength]);
}
m_pcData = &m_acData[0];
m_LastEvent = eventTextElement_e;
//////////////////////////
> -----Original Message-----
> From: Gareth Reakes
> [mailto:[EMAIL PROTECTED] Behalf
> Of Gareth Reakes
> Sent: 18 March 2004 15:08
> To: [EMAIL PROTECTED]
> Subject: Re: SAX v DOM speed
>
>
> Hi,
>
> You can view the creation of the DOM Tree as a sort of SAX parse that
> creates the objects that are required. If you are not doing
> any heavy duty
> work in the methods you have overriden I would expect it to be
> significantly faster.
>
>
> Gareth
>
> --
> Gareth Reakes, Managing Director +44-1865-811184
> Parthenon Computing http://www.parthcomp.com
>
>
>
>
> On Thu, 18 Mar 2004, Vincent Finn wrote:
>
> > Hi,
> >
> > I have recently rewritten a class I have to use SAX instead
> of the DOM
> > I did this because the DOM tree was too large and was
> taking Gigs of memory
> > SAX takes far less memory but is slower
> >
> > I thought that SAX would be quicker since it seems to be
> simpler and doesn't
> > create any classes or internal structures.
> > I can't see any inefficiencies in my code (obviously I have
> to copy the text data
> > since the pointer isn't valid outside the function, where
> as in the DOM I'd just use it)
> > so I am curious as to whether the DOM should be quicker
> >
> > Can anyone tell me why this might be so?
> > Is this expected?
> >
> > The reason I ask is because if SAX would be expected to be
> slower then that's
> > fine and I'll leave it as is, memory is more important,
> > but if it should be faster (or the same) I would like to
> track down what I am doing wrong
> >
> > Vin
> >
> >
> --------------------------------------------------------------
> ----------
> > [EMAIL PROTECTED]
> >
> --------------------------------------------------------------
> ----------
> > My opinions may have changed, but not the fact that I am right.
> >
> --------------------------------------------------------------
> ----------
> >
> >
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> >
> >
>
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