On Thu, 13 Nov 2003, Matt Sisk wrote: > Matt Sisk wrote: > > I have not verified this, but IF there is a lot of overlap of spans > > between various timezones, perhaps a 'span registry' could be shared > > between all the zone modules, thereby avoiding duplication of span objects. > > I just ran a quick check on TZ 0.2505: > > TZ module count: 367 > Span count: 16969 > Crunched: 9333 > > If you reuse duplicat span arrays by reference, you shave the memory > footprint by approximately 45%.
But that only applies when you load _all_ the zones How would these be shared if you only wanted to load 10-20 zones, or even 150 zones? It seems like the overhead of determining what is shared would outweigh the savings. Do you have any idea of how to implement this in a way that doesn't require all the zones to be loaded up front, because I can't think of one. I like the idea of sharing the data somehow though. -dave /*======================= House Absolute Consulting www.houseabsolute.com =======================*/
