Hi miguel what is the solution? I remember that I saw passing some code to support nanos but I'm not sure that it was integrated. Now let us fix it if possible.
Stef On Feb 13, 2010, at 1:32 AM, Miguel Enrique Cobá Martinez wrote: > El vie, 12-02-2010 a las 14:58 -0800, John M McIntosh escribió: >> With the Mac VM 5.4b1 I have a microsecond clock. >> http://n4.nabble.com/microsecond-timing-for-GC-work-td1016253.html >> >> zero feedback, maybe it's too fast and you never get above 1 millisecond in >> testing eh? > > > Thanks that indeed shown a difference in my machine. > > But, then other question, why the default implementation of DateAndTime > now and TimeStamp now isn't smaller than a second. > By sending now I get a DateAndTime object but by sending > millesecondClockValue a get a SmallInteger representing the number of > milliseconds. > > But there isn't in the class side of both classes and neither in Time > class a method to build a DateAndTime, a TimeStamp or a Time from > milliseconds. So to convert this value to a date again I will have to > trunk the time to a second resolution. Is this analysis correct? > > Of course I could index my objects in the list with the millis number > but I would be happier if I could index them with a real date object. > > Anyway, not that that is a show stopper, is just that when creating > objects I'm assigning a creation date and I would like to find what > objects are older that others created at about the same lapse, without > resorting to use their position in an external data structure (i.e. the > OrderedCollection, an array or the line number in a file). > > Thanks to everyone for the answers. > >> >> >> On 2010-02-12, at 12:46 PM, csra...@bol.com.br wrote: >> >>> Miguel, >>> >>> Pharo allows you to drill down to millisecond resolution, but for your >>> 'benchmark' that's still too coarse: >>> >>> {DateAndTime. TimeStamp } collect: [ :class | >>> | list | >>> list := OrderedCollection new. >>> 1 to: 1000 do: [ :each | >>> value := class millisecondClockValue. >>> list add: value ]. >>> list last - list first ]. >>> >>> I get an Array (1 1). >>> >>> Changing from 1000 to 100000 (hundred fold) I got #(77 141). >>> >>> HTH >>> >>> -- >>> Cesar Rabak >>> >>> Em 12/02/2010 17:02, Miguel Enrique Cobá Martinez < miguel.c...@gmail.com > >>> escreveu: >>> I am noticing that both >>> >>> DateAndTime now >>> TimeStamp now >>> >>> have a precision of seconds, that is, the nanos is always 0. >>> >>> I am doing a bulk data creation and inserting them in a list with a >>> timestamp for each insertion but this isn't working because several >>> entries have the very same DateAndTime or Timestamp. >>> >>> For example: >>> >>> {DateAndTime. TimeStamp } collect: [ :class | >>> | list | >>> list := OrderedCollection new. >>> 1 to: 1000 do: [ :each | >>> value := class now. >>> list add: value ]. >>> list last - list first ] >>> >>> gives an Array(0:00:00:00 0:00:00:00) >>> >>> How can achieve smaller than a second timestamping in Pharo? >>> -- >>> Miguel Cobá >>> http://miguel.leugim.com.mx >>> >>> >>> _______________________________________________ >>> Pharo-project mailing list >>> Pharo-project@lists.gforge.inria.fr >>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >>> >>> _______________________________________________ >>> Pharo-project mailing list >>> Pharo-project@lists.gforge.inria.fr >>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >> >> -- >> =========================================================================== >> John M. McIntosh <john...@smalltalkconsulting.com> Twitter: squeaker68882 >> Corporate Smalltalk Consulting Ltd. http://www.smalltalkconsulting.com >> =========================================================================== >> >> >> >> >> >> _______________________________________________ >> Pharo-project mailing list >> Pharo-project@lists.gforge.inria.fr >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > > -- > Miguel Cobá > http://miguel.leugim.com.mx > > > _______________________________________________ > Pharo-project mailing list > Pharo-project@lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project _______________________________________________ Pharo-project mailing list Pharo-project@lists.gforge.inria.fr http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
