On 16/01/13 01:02, Holger Knublauch wrote:
Hi Andy,
I ran a profiler through a typical scenario with our software and
discovered that 10% of the clocked time was spent in the initialization
of the xsd:dateTime literal needed by the afn:now() and NOW function.
Below is a snapshot from Yourkit profiler.
Unless this is a measurement error in the tool, I believe there would be
a low-hanging fruit to optimize performance if the value would be
computed on demand only. I do understand that you need to get the time
stamp for the duration of the whole query, but I believe it would be
much faster to simply get the current time millis as a long, and from
this derive the actual XSD literal only if someone really calls this
SPARQL method.
Thanks
Holger
Holger,
This isn't clear to me - I can not see the code context for the call to
NodeFactory.nodeAsDateTime.
what is the SPARQL query being executed?
Andy
