[Bug 93840] [i965] Compiler backend uses too much stack with Alien: Isolation

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93840

--- Comment #27 from Darius Spitznagel <d.spitznagel at goodbytez.de> ---
Hello Eero,

> (The first CS shader takes at least 10 min to compile before getting to game
> menus, and same, or similar shader takes another 10 min when starting game
> from the menu.)

this really confuse me.

With my Intel Haswell Iris Pro 5200 system I need less then 3 Minutes to get
into the game and play (continue from save). You say you need 20 Min?
I use Matts patch of course.

What I see is that video-play and shader compilation all run on one cpu core
out of 8. What a waste!
The videos (original from the movie) are all blocked by shader compilation. I
don't think this is the intention from the game developers.
To split video and shader compile into at least two threads should already
bring better loading times and makes total sense.
And as far as I know this is the part of the OpenGL driver and not the
application.

Mesa+radeonsi seems to run fine, look here...
https://bugs.freedesktop.org/show_bug.cgi?id=93144

In Comment 31...
https://bugs.freedesktop.org/show_bug.cgi?id=93144#c31 Edwin Smith from Feral
is happy to help.

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