[PD-dev] performance of different Wish versions

[Dan Wilcox]

I'd be curious to know if this is related to Pd itself *or* Tk? It appears to be the latter and the next test would be to write a minimal Tcl/Tk script which reproduces the behavior. It could be something like a single window with a Tk cnv and a rectangle which changes color in a loop. If the performance hit comes with just the Tcl script then we can open an issue with the Tk devs as there may be a regression.

> On Jul 14, 2023, at 12:00 PM, pd-dev-request at lists.iem.at wrote:
> 
> Message: 3
> Date: Thu, 13 Jul 2023 23:22:10 +0200
> From: Roman Haefeli <reduzent at gmail.com <mailto:reduzent at gmail.com>>
> To: pd-dev at lists.iem.at <mailto:pd-dev at lists.iem.at>
> Subject: [PD-dev] performance of different Wish versions
> Message-ID: <1d9d56e5434211950cc1b1b363d84af42ff3b7f9.camel at gmail.com <mailto:1d9d56e5434211950cc1b1b363d84af42ff3b7f9.camel at gmail.com>>
> Content-Type: text/plain; charset="utf-8"
> 
> Hey all
> 
> I was seeing a suspiciously high CPU usage (~52% in Acitivity Monitor)
> on macOS with one of my patches basically idling. It turned out to be
> the GUI process and not 'pd'. Then I figured out that it was related to
> frequently changing the color of a [cnv] in a GOP. The same patch with
> the same rate of color changes eats almost no CPU on Linux (4-5% in
> htop).  

--------
Dan Wilcox
@danomatika <http://twitter.com/danomatika>
danomatika.com <http://danomatika.com/>
robotcowboy.com <http://robotcowboy.com/>



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