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Date:      Thu, 17 May 2018 11:12:48 -0700
From:      Pete Wright <pete@nomadlogic.org>
To:        Johannes Lundberg <johalun0@gmail.com>
Cc:        x11-list freebsd <freebsd-x11@freebsd.org>
Subject:   Re: Lag after resume culprit found
Message-ID:  <49b7e10c-998a-e73d-8475-063d50414395@nomadlogic.org>
In-Reply-To: <CAECmPwtULDe9GGK0PhnUa7_n=zxripJj9nh5m0RTF9XqKhXKYQ@mail.gmail.com>
References:  <CAECmPwtULDe9GGK0PhnUa7_n=zxripJj9nh5m0RTF9XqKhXKYQ@mail.gmail.com>

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On 05/16/2018 16:07, Johannes Lundberg wrote:
> https://github.com/freebsd/freebsd/commit/66f063557f257baa9c8aeab9f933171eaa6e1cfa
> x86 cpususpend_handler: call wbinvd after setting suspend state bits
>
> How to test (i915kms)
>
> Start X with glxgears
> Confirm running stable at 60 fps
> suspend/resume (S3)
> glxgears is now fluctuating between 10-40 fps.
>
>
> Way past bedtime now so I stop here for today.

i can confirm that the commit avg@ put in to HEAD today to revert this 
solved my suspend/resume issues on my Kabylake system running drm-next.  
Thanks for tracking this down Johannes, and the quick attention from 
Andriy to fix this!

cheers,
-pete

-- 
Pete Wright
pete@nomadlogic.org
@nomadlogicLA




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