Re: [xml] xmlNodeDump performance (Chang Im)

[Daniel Veillard <veillard redhat com>]

On Mon, Jun 11, 2012 at 03:49:47PM +0000, Chang Im wrote:
> Thanks for your suggestion.  Well taken and it makes sense for the entire tree dumping.
> The performance could matter even with a subtree case depending upon the size.
>
> I tried what Contrad suggested with xmlSetBufferAllocationScheme and that made a significant difference.
> For the entire tree, the time taken is reduce from 68 seconds to .67 seconds.

  Yes when dumping to memory, the memory buffer must be grown
progressively leading to a number of memory realloc() functions
Those function can be especially slow on system with low memory
or running some versions of Windows. Best is to dump directly
to a file or a filedescriptor if you have one.

Daniel

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