Re: Graphics preview in parallel

On Sun, Jun 28, 2026 at 11:13:16AM +0200, Scott Kostyshak wrote:
> > > I personally would like the option to be able to increase the threads.
> > > But this can be figured out later.
> > 
> > Hmm I found it somewhat too technical to push into UI.
> 
> I think most would agree with you.
> 
> > You would like to see
> > nuymber of threads in settings?
> 
> Personally (for my own use case), yes. For users, not yet. Thus I would
> like to see a preference that is not (yet) shown in the UI. If we make
> uses of threads in other cases, then I may argue for it to be exposed to
> the users.
> 
> I think the discussion below is related, since it relates to the
> trade-offs regarding system resources.

I have deal for you. We keep the number of threads on the limit I proposed
but I will add parameter [threads_count] to the lfun you haven't seen yet,
so if you bind this lfun with your personal lucky number you will get
the full doc image load on a single stroke.
What you think?

> > > constantly readjusted as the document is loaded on-the-fly. I would
> > > prefer an option to just have everything load at the beginning.
> > 
> > Did you looked on the second patch? You could trigger it via key binding
> > or home grown icon via that lfun...
> 
> I haven't looked at the patches at all, only your email. I might look
> into a local patch (on top of yours) that run this by default when
> loading a buffer. Do you have a reason not to always have it enabled?
> I'm just talking about a local patch, not arguing this should be done by
> default by LyX.

The only thing to keep in mind is that if you put too many threads and have too
little memory you can enter swap hell. One of the reasons I am hesitant
to push the thread count limits too high by default.

Pavel
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