[rrd-users] Re: Who has the most RRD files (or data sources)?

Mark Plaksin happy at usg.edu
Mon Mar 20 18:35:30 MET 2006


Fabien Wernli <wernli at in2p3.fr> writes:

> Hi,
>
> On Sat, Mar 18, 2006 at 09:48:07PM -0500, Mark Plaksin wrote:
>> 
>> Also, do you have a feel for why doing the operation via XML is so slow?
>> Is it the nature of XML?  Some specific problem with your XML library?
>> Does your Perl script ever fail or miss some important data?
>> 
>
> When you do full XML processing, you need to load the entire tree into
> memory, say just for discarding some columns. Whereas if you sequentially
> parse the XML is much faster and less Memory hungry.

And there are no sequential XML parsers?  And thus XML is only good for
small amounts of data?  I know little about XML but find this hard to
believe :)

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