[Bug 112315] 5.3.11 regression: No RC6 on Kaby Lake

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=112315

Michael Marley <michael at michaelmarley.com> changed:

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                 CC|                            |michael at michaelmarley.com

--- Comment #7 from Michael Marley <michael at michaelmarley.com> ---
I am having this same problem on a Broadwell laptop and a handful of various
Skylake systems, so I decided to try
https://cgit.freedesktop.org/~ickle/linux-2.6/log/?h=bug112315 (or, precisely,
that merged on top of 5.4-rc8 from Linus's tree, which merged cleanly).

While it does allow my systems to reach RC6, it doesn't really seem to make a
meaningful difference in power consumption.  It spends <=10% of the time in RC6
if I have any Firefox windows open, for example, even if Firefox isn't actually
doing anything.  5.4-rc7 (or 5.4-rc8 with the DoS patch reverted) would have
>=95% RC6 under the same conditions.

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