[postgis-devel] Calling Index Genii

Mark Cave-Ayland mark.cave-ayland at siriusit.co.uk
Fri Dec 31 04:11:16 PST 2010


On 31/12/10 06:15, Paul Ramsey wrote:

> Actually, testing again on the laptop (apples to apples) the speed
> different with 2D data is down to 3ms-on-new vs 1ms-on-old. When
> pulling a much larger result set (2000 records) the speed difference
> is 10ms-on-new vs 6ms-on-old. So it's closer, but still not
> equivalent.
>
> P.

Sounds like it's time to build a profileable version of the library. Can 
you build with CFLAGS="-O0 -pg" and then use your favourite profiling 
tool (gprof/Shark) to see the differences in where the time is being spent?


ATB,

Mark.

-- 
Mark Cave-Ayland - Senior Technical Architect
PostgreSQL - PostGIS
Sirius Corporation plc - control through freedom
http://www.siriusit.co.uk
t: +44 870 608 0063

Sirius Labs: http://www.siriusit.co.uk/labs



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