[Intel-gfx] Huge memory leaks with GEM

[Maxim Levitsky]

On Tue, 2009-07-07 at 10:21 +0800, Shuang He wrote:
> Hi Levitsky
>     Could you check if your mesa includes following two commits, which 
> should fix some serious memory leak with compiz?
>        
> http://cgit.freedesktop.org/mesa/mesa/commit/?h=mesa_7_5_branch&id=d027e8feff7d38cccadc6aaccc0454b21ce4dca0
>        
> http://cgit.freedesktop.org/mesa/mesa/commit/?h=mesa_7_5_branch&id=9dfce365c7f35ddea6d81b7f595ddcd6d35382a5


Sure it has, I use master branch of mesa (yestarday I also compiled
mesa_7_5_branch)

This isn't just compiz, in fact compiz leaks isn't much noticeable, it
is all GL applications.
Note that if I close the application, memory is reclaimed, but it isn't
reclaimed during its runtime. (the 'X object bytes' only increases, and
decreases in one jump, after I close the application)


Best regards,
	Maxim Levitsky



> 
> Thanks
>     --Shuang
> 
> Maxim Levitsky wrote:
> > I have recently tried the latest versions of graphics stack for my G965
> > intel device.
> >
> >
> > First I must say thanks! The quality of everything did improve
> > significantly.
> >
> > I especially happy to see that GoogleEarth is finally usable. I remember
> > it being very slow back when I tried the intel drivers last time (I have
> > a nvidia card that I use most of the time on this system, and it is set
> > to hit the trash as soon as intel drivers became usable - I know that
> > performance will always be inferior, but as long as compiz, GE, and few
> > simple games work, I agree to that)
> >
> > However, it appears that current GEM implementation doesn't free buffers
> > at all.
> >
> > looking at  /sys/kernel/debug/dri/0/gem_objects reveals that more a GB
> > of buffers are allocated, after few minutes of GE use. In same time
> > usual signs of swapping appear. top confirms that GE uses more that a GB
> > of memory (this system has just 1GB of memory)
> >
> > This is what I see there:
> >
> > 4614 objects
> > 1152802816 object bytes
> > 3 pinned
> > 13762560 pin bytes
> > 137949184 gtt bytes
> > 260308992 gtt total
> >
> >
> >
> > Same behavier is observed with all games, and even compiz, just
> > closing/opening windows triggers same behavior.
> >
> > Even xorg memory usage is increasing, due to that.
> >
> >
> > I currently use latest -git versions of everything, including kernel
> > I also use modesetting.
> >
> >
> > How can I help with that?
> >
> >
> > Best regards,
> > 	Maxim Levitsky
> >
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> > Intel-gfx at lists.freedesktop.org
> > http://lists.freedesktop.org/mailman/listinfo/intel-gfx
> >   
>