[phobos] Community shout-out?

[Sean Kelly]

I think the Tango parser is fast for two reasons. First, it doesn't allocate at all and second, it doesn't decode the string data--that's left up to the user. Even XercesC converts data to a specific encoding before the user sees it (some variant of wchar_t I believe).  I don't know how Tango handles XML streams in different encodings, but perhaps it's a template on char type?

Sent from my iPhone

On Nov 14, 2010, at 10:39 PM, Jacob Carlborg <doob at me.com> wrote:

> I don't know why Phobos is so slow but what I've heard Tango is fast because it never copies the input buffer, what I've heard.
> 
> On 14 nov 2010, at 16:10, SHOO wrote:
> 
>> LOL! This is terrible!
>> 
>> The performance is not so important for me, but this report moves me to tears.
>> What is a bottleneck?
>> 
>> --
>> SHOO
>> 
>> (2010/11/14 21:55), Jacob Carlborg wrote:
>>> A benchmark has shown that the Tango XML module is a lot faster than many of the XML libraries out there, specially than the Phobos module. So I would say that D could do better than other libraries at least when it comes to speed.
>>> 
>>> http://dotnot.org/blog/archives/2008/03/10/xml-benchmarks-updated-graphs-with-rapidxml/
>>> 
>>> On 14 nov 2010, at 10:44, Russel Winder wrote:
>>> 
>>>> On Sun, 2010-11-14 at 15:35 +0900, SHOO wrote:
>>>>> About a problem of std.xml.
>>>> 
>>>> Potentially n00b comment but . . .
>>>> 
>>>> The Python community seem to be giving up on having their own library
>>>> for processing XML and are using bindings to libxml2 and libxslt.  Is it
>>>> likely that a D source XML library can do better than libxml2 and
>>>> libxslt or might it be better just to create a D idiomatic binding?
>>>> 
>>>> --
>>>> Russel.
>>>> =============================================================================
>>>> Dr Russel Winder      t: +44 20 7585 2200   voip: sip:russel.winder at ekiga.net
>>>> 41 Buckmaster Road    m: +44 7770 465 077   xmpp: russel at russel.org.uk
>>>> London SW11 1EN, UK   w: www.russel.org.uk  skype: russel_winder
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>>> 
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> 
> -- 
> /Jacob Carlborg
> 
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