There has been improvement since 6.1.1, I believe. Robby
On Mon, Feb 22, 2016 at 5:55 PM, George Neuner <[email protected]> wrote: > On 2/22/2016 3:04 PM, 'John Clements' via Racket Users wrote: >> >> I have several students who are observing truly impressive UI delays in >> using DrRacket. Specifically, it often happens when they type a double-quote >> (“) with “automatic parentheses” enabled, and after typing the key, it will >> take more than 16 seconds for the screen to update and for the quotes to >> appear. The delay seems to be shortened significantly by clicking or hitting >> the arrow keys, and I suspect this may be related to OS X’s “app nap” >> feature, that will shut down an application when it thinks that it doesn’t >> need foreground processing. >> >> Any ideas? >> >> John > > > Possibly this is a stupid question [ I don't have an OSX machine handy ] ... > > If you suspect App Nap, have you tried disabling it for DrRacket? > http://osxdaily.com/2013/10/29/disable-app-nap-per-application-mac-os-x/ > I know this might be a logistics nightmare in a class or lab. > > > FWIW, I also have observed some randomly impressive delays. In my case they > seem to happen when DrRacket has been running for a long time with multiple > windows. The condition (whatever it is) just seems to clear itself after > the freeze - sometimes a console window with an error pops up but DrRacket > keeps running. > > I tend to restart DrRacket if the error pops up, but in any case it may be > hours or days before it happens again. However, I'm still on an older > version (6.1.1) so it might be fixed in more recent versions, and so far it > has only been a minor annoyance. > > George > > > -- > You received this message because you are subscribed to the Google Groups > "Racket Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.

