Re: [PATCH 1/3] ui/gtk: adds status bar for expressing ups and fps

[Dongwon Kim]

I found there are no such performance indicators available in Qemu/GTK.
I thought this was the gap as in many fields, users want to check fps or
ups to evaluate graphic or display performance in their use-cases.

Thanks for your feedback!. 

On Tue, Jul 27, 2021 at 09:24:44AM +0100, Daniel P. Berrangé wrote:
> On Mon, Jul 26, 2021 at 03:25:49PM -0700, Dongwon Kim wrote:
> > With a display option, "show-fps=on", qemu adds a status bar and print
> > following performance numbers on the bar,
> > 
> > ups = update per seconds - the rate the guest scanout is updated.
> > fps = frame per seconds - the frame rate of VC's GL drawing area
> > 
> > One function, gd_gl_count_frame is added to count # frames
> > and calculate ups and fps every 100 frames or guest scanout updates.
> 
> This feels like a pretty niche/novelty feature. Is this really
> something we can justify adding to the UI, considering that it
> means we will be maintaining this UI and supporting code long
> term. 
> 
> 
> Regards,
> Daniel
> -- 
> |: https://berrange.com      -o-    https://www.flickr.com/photos/dberrange :|
> |: https://libvirt.org         -o-            https://fstop138.berrange.com :|
> |: https://entangle-photo.org    -o-    https://www.instagram.com/dberrange :|
>