Thanks for trying it out. I just tried using the bash installer from https://download.racket-lang.org/ and I experience the same issue of lagginess in 7.3. I also tried using a snapshot release from https://plt.eecs.northwestern.edu/snapshots/ and I experienced the same issue.
I am not sure what I should try next other than maybe profiling, but I have not had much luck making effective use of the profiler in the past for interactive applications. Evan On Thursday, May 30, 2019 at 4:23:13 AM UTC-10, Sam Tobin-Hochstadt wrote: > > I just tried this on my build (from HEAD) and I also do not see any > slowdown. Trying with a regular installer would be helpful. > > Sam > > On Fri, May 17, 2019 at 5:09 PM evdubs <evd...@gmail.com <javascript:>> > wrote: > > > > Hi All, > > > > I have noticed sluggish performance with my plot overlays in Racket 7.3 > that I had not noticed in versions 7.2 and prior. Here's the code I am > using to test (taken from here): > > > > (require plot) > > > > (define ((make-current-value-renderer fn) snip event x y) > > (define overlays > > (and x y (eq? (send event get-event-type) 'motion) > > (list (vrule x #:style 'long-dash) > > (point-label (vector x (fn x)) #:anchor 'auto)))) > > (send snip set-overlay-renderers overlays)) > > > > (define snip (plot-snip (function sin) #:x-min 0 #:x-max (* 2 pi) > #:y-min -1.5 #:y-max 1.5)) > > (send snip set-mouse-event-callback (make-current-value-renderer sin)) > > snip > > > > With 7.3, it feels like the frame rate hovers around 5-10 fps and the > mouse pointer input is buffered so you can move around the plot and it will > slowly try to catch up to where your pointer was. 7.2 and prior all felt > snappy and seemed to be at least 20-30 fps. > > > > Here are my installation details: > > > > Ubuntu 19.04 > > Intel Core i5-7400 > > 16GB RAM with only ~10GB in use (no swapping) and <1GB in use by > DrRacket > > Racket 7.3 installed from the PPA > > > > I asked Alex H. if he had noticed this regression and he said he had > not. He uses Windows. I have not tried to see if the PPA version is any > different from the official installer to see if there's a difference. Maybe > that's the next step? > > > > Evan > > > > -- > > 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 racket...@googlegroups.com <javascript:>. > > To view this discussion on the web visit > https://groups.google.com/d/msgid/racket-users/b68b9731-3163-4d0b-9edc-32c3774b6243%40googlegroups.com. > > > > 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 racket-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/racket-users/a79a3b45-ea09-4b62-af58-3a367d1d799d%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
