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From: Eli Zaretskii <eliz@gnu.org>
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Subject: Re: macOS metal rendering engine in mac port
Date: Mon, 31 May 2021 05:28:40 +0300
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Cc: alan@idiocy.org, emacs-devel@gnu.org
To: Aaron Jensen <aaronjensen@gmail.com>
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 (message from Aaron Jensen on Sun, 30 May 2021 16:59:15 -0700)
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> From: Aaron Jensen <aaronjensen@gmail.com>
> Date: Sun, 30 May 2021 16:59:15 -0700
> Cc: Alan Third <alan@idiocy.org>, emacs-devel@gnu.org
> 
> On Sun, May 30, 2021 at 10:18 AM Eli Zaretskii <eliz@gnu.org> wrote:
> >
> > > When emacs is idle, it seems to spam face lookups continuously. Here's
> > > a sample of that:
> >
> > Is this "emacs -Q"?  If so, does it help to disable blink-cursor-mode
> > and global-eldoc-mode?
> 
> It's not in emacs -Q, it was my config. It's intermittent. I can't
> reproduce it right now. If I see it again I'll try and grab a profile,
> but I'm not too worried about it at the moment.

Profile will not necessarily explain what's going on.  That's why I
asked for backtraces.

> Do you think I should bother getting rid of the inheritance in my
> theme?

Massive face inheritance makes face merging slower.

> Will it cause any issues to have that much inheritance once the hash
> patch is merged?

The effect should be much less prominent after that patch is
installed.