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> 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-users+unsubscr...@googlegroups.com. > 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/CAK%3DHD%2BbLxJ7%2BhBNu8waD%3DtvX4z1_%2Bc%3D-BkMa9o%2B%3DSXPTgR68Gg%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
