[squeak-dev] Some DateAndTime experiments

Nicolas Cellier nicolas.cellier.aka.nice at gmail.com
Sat Apr 19 16:10:41 UTC 2014


2014-04-19 15:29 GMT+02:00 David T. Lewis <lewis at mail.msen.com>:

> On Sat, Apr 19, 2014 at 09:12:47AM -0400, David T. Lewis wrote:
> > On Sat, Apr 19, 2014 at 10:34:04AM +0200, Nicolas Cellier wrote:
> > > Hi Dave,
> > > did you lurk at the work in Pharo?
> > > I think they followed similar approach, but they kept jdn seconds and
> > > nanos, representing time in UTC, and they used UTC clock exlcusively.
> > > It would be interesting to compare the timings vs latest Pharo (3.0).
> >
> > Hi Nicolas,
> >
> > Yes, I'm aware of the Pharo work.
> >
> > The approach that I am trying now is based on my earlier work with the
> > Olson time zone tables in http://www.squeaksource.com/TimeZoneDatabase.
>
> <OT>
> Well, what do you know, it seems that I just got my first link from
> Wikipedia.
> On http://en.wikipedia.org/wiki/Tz_database#Use_in_software_systems there
> is a link for "The Squeak Smalltalk time package" that points to the Olson
> time zone database for Squeak.
> </OT>
>
> Dave
>
>
>
Congrats for the fame ;)
And thanks for reporting your observations about Integer and Fraction
efficiency.
A 64 bits Spur should also scale our SmallIntegers up to 2^62, which can
completely change the figures anyway.
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