When using a field with close to 45000 lines, the second (using the lines of the field) version takes on average 23 milliseconds, whereas using a variable takes on average 15 milliseconds. For a field /variable with 5000 lines the difference is about 2 milliseconds here. The actual speed and difference will vary according to your hardware I guess.
Best regards Tore Nilsen > 12. jan. 2019 kl. 17:01 skrev David Epstein via use-livecode > <use-livecode@lists.runrev.com>: > > I've done a little bit of speed testing showing extremely slight differences, > but wonder if anyone who understands the "engine" can advise on this: > > Is there a difference between these two approaches? > > (1) put fld 1 into txt; repeat for each line k in txt; etc. > > and > (2) repeat for each line k in fld 1; etc. > > For no very good reason, I tend to do (1), but have begun to wonder: for a > very lengthy field 1, does my writing to a variable use up more RAM, and so > perhaps injure performance? Or is the engine in effect writing to a variable > either way? Is a variable read more quickly than a field? > > Many thanks. > David Epstein > _______________________________________________ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your subscription > preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
