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Date:      Thu, 17 May 2018 00:07:56 +0100
From:      Johannes Lundberg <johalun0@gmail.com>
To:        freebsd-current <freebsd-current@freebsd.org>
Cc:        x11-list freebsd <freebsd-x11@freebsd.org>
Subject:   Lag after resume culprit found
Message-ID:  <CAECmPwtULDe9GGK0PhnUa7_n=zxripJj9nh5m0RTF9XqKhXKYQ@mail.gmail.com>

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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.

Note: cross-posting - please think before "reply-to-all"

/Johannes



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