[PD] Pd GUI poor performance

Orm Finnendahl orm.finnendahl at selma.hfmdk-frankfurt.de
Thu Apr 6 12:27:32 CEST 2017

Another solution could be to reduce the maximum number of messages
sent to the gui per tick. IIRC this is a #define somewhere in the
sources and you'd have to recompile pd, but I did this once on an
advice of Miller and it worked very well (except for the slow gui

Apart from that there is an external called speedlim (you could also
build that as an abstraction using vanilla) which might be more
elegant than using a global metro.


Am Donnerstag, den 06. April 2017 um 12:12:42 Uhr (+0200) schrieb martin brinkmann:
> On 05/04/17 16:15, Billy Stiltner wrote:
> > what is the global gui refresh  metro ?
> that is/was my (temporary) solution for the slow gui:
> a metro at 8 hz sending bangs to a global send
> and a [f] receiving these bangs before every slider/number/ which is
> updated via midi-ctl, counters, sequencers, whatever.
> while directly connecting a few midi-controllers to sliders could easily
> stall the gui (when the knobs are moved), this solution looked not very
> beautiful, but caused no dramatic cpu-spikes, even without 2d hardware
> acceleration.
> > and do other graphics cards have different options
> > besides ShadowPrimary that allows fast access to pixel data?
> i suppose so...
> > Can look it up but seeing that you have recently been dabbling in it...
> only with my radeon card under linux, until i had success with the
> settings in xorg.conf.
> >>         Option          "AccelMethod" "glamor"
> >>         Option          "ShadowPrimary" "on"
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