I noticed since Mathematica v12 a very slow frontend when rendering the Units.

Easy to show:

Quantity[Range[1, 100], "Euros"]

Takes (timed with a stopwatch) approx. 17 seconds.. Is it my computer?

Quantity[Range[1, 100], "Euros"];

has immediate result. When using FinancialData it's almost impossible to show the results in the Notebook.

Any thoughts appreciated

  • $\begingroup$ If you don't care about tooltips etc: TextString /@ Quantity[Range[100], "Euros"] $\endgroup$ – Kuba Jul 8 at 12:44
  • $\begingroup$ Quantity[Range[1, 100], "Euros"] takes less than 2 sec on my MacBook Pro (3 GHz Intel Core i7) with macOS 10.14.5 $\endgroup$ – Bob Hanlon Jul 8 at 13:02
  • $\begingroup$ 8 seconds in Mma12, Windows 7Pro, i7-4770 3.4GHz 16Gb RAM, I have noticed the problem before. I agree that this is slow. $\endgroup$ – rhermans Jul 8 at 13:19
  • $\begingroup$ I use a Windows 10 with a i7-6820HQ@2.7GHz 16GB RAM. I find it unworkable slow... sigh.. $\endgroup$ – Lou Jul 8 at 13:35
  • $\begingroup$ I logged a support Call. Anyway I also note that when I minimize the Notebook and then open the window again, the notebook is black. Then after some seconds it comes back again. Since @BobHanlon MAC is "only" 2 seconds .. could it be a windows related issue? $\endgroup$ – Lou Jul 8 at 13:46

I logged a call and it's a known issue. Will be fixed in a upcoming next release of Mathematica. Pinky Swear.

Update: presumably version 12.1


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