From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 196409] kvm_amd nested pagetable gpu passthrough performance
oddities
Date: Fri, 08 Sep 2017 09:58:24 +0000
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https://bugzilla.kernel.org/show_bug.cgi?id=196409
Fruhwirth Clemens (clemens@endorphin.org) changed:
What |Removed |Added
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CC| |clemens@endorphin.org
--- Comment #20 from Fruhwirth Clemens (clemens@endorphin.org) ---
For a fix, I am publicly offering a bounty expiring 2017/11/01 of 0.02 Bitcoin
(~100$ at the current price) redeemable by the person on the respective git
commit.
Maybe a good starting point is grepping through the code for "npt_enabled" and
doing some random guesswork, and/or introducing more performance counter at
host or guest to increase visibility. Maybe we can take apart a benchmark and
identity the operation that is slow.
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