From: "Jan Beulich" <JBeulich@suse.com>
To: Andrew Cooper <andrew.cooper3@citrix.com>
Cc: xen-devel <xen-devel@lists.xenproject.org>,
Wei Liu <wei.liu2@citrix.com>,
Roger Pau Monne <roger.pau@citrix.com>
Subject: Ping: [PATCH 0/5] x86: more power-efficient CPU parking
Date: Wed, 03 Apr 2019 04:12:26 -0600 [thread overview]
Message-ID: <5CA4870A0200007800224351@prv1-mh.provo.novell.com> (raw)
In-Reply-To: <5B61C2120200007800224310@prv1-mh.provo.novell.com>
>>> On 01.08.18 at 16:22, wrote:
> When putting CPUs to sleep permanently, we should try to put them into
> the most power conserving state possible. For now it is unclear whether,
> especially in a deep C-state, the P-state also matters, so this series only
> arranges for the C-state side of things (plus some cleanup).
>
> 1: x86/cpuidle: replace a pointless NULL check
> 2: x86/idle: re-arrange dead-idle handling
> 3: x86/cpuidle: push parked CPUs into deeper sleep states when possible
> 4: x86/cpuidle: clean up Cx dumping
> 5: x86: place non-parked CPUs into wait-for-SIPI state after offlining
So patch 5 is understandably controversial, and I'm explicitly
excluding it from the ping. Patch 1 has gone in long ago and
patch 4 has been acked. While there was some feedback on
2 (albeit stalled then after my reply), I don't think I've had any
substantial feedback on 3 though, yet _they_ are supposed to
provide the main improvement here. Patch 5 really was meant
to be more optional than I had expressed, hence its placement
even after the pure cleanup patch 4.
The series has been pending for well over half a year now,
yet other than for the indirect call patching series (where it
already doesn't feel really well) I don't want to propose
simply committing this in the absences of sufficient feedback.
Jan
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next prev parent reply other threads:[~2019-04-03 10:12 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-01 14:22 [PATCH 0/5] x86: more power-efficient CPU parking Jan Beulich
2018-08-01 14:31 ` [PATCH 1/5] x86/cpuidle: replace a pointless NULL check Jan Beulich
2018-08-01 14:33 ` Andrew Cooper
2018-08-01 15:12 ` Jan Beulich
2018-08-01 14:31 ` [PATCH 2/5] x86/idle: re-arrange dead-idle handling Jan Beulich
2018-09-07 17:08 ` Andrew Cooper
2018-09-10 10:13 ` Jan Beulich
2018-10-26 10:55 ` Ping: " Jan Beulich
2018-12-05 20:33 ` Andrew Cooper
2018-12-06 8:16 ` Jan Beulich
2018-08-01 14:32 ` [PATCH 3/5] x86/cpuidle: push parked CPUs into deeper sleep states when possible Jan Beulich
2018-10-26 10:56 ` Ping: " Jan Beulich
2018-08-01 14:33 ` [PATCH 4/5] x86/cpuidle: clean up Cx dumping Jan Beulich
2018-08-01 14:40 ` Andrew Cooper
2018-08-01 14:33 ` [PATCH 5/5] x86: place non-parked CPUs into wait-for-SIPI state after offlining Jan Beulich
2018-08-29 7:08 ` Ping: [PATCH 0/5] x86: more power-efficient CPU parking Jan Beulich
2018-08-29 17:01 ` Andrew Cooper
2018-08-30 7:29 ` Jan Beulich
[not found] ` <5B61C21202000000000FC1F1@prv1-mh.provo.novell.com>
[not found] ` <5B61C21202000078001F8805@prv1-mh.provo.novell.com>
[not found] ` <5B61C21202000000000FC6BD@prv1-mh.provo.novell.com>
[not found] ` <5B61C212020000780020B6D8@prv1-mh.provo.novell.com>
[not found] ` <5B61C21202000000000FF27E@prv1-mh.provo.novell.com>
[not found] ` <5B61C2120200007800224310@prv1-mh.provo.novell.com>
2019-04-03 10:12 ` Jan Beulich [this message]
2019-04-03 11:14 ` Andrew Cooper
2019-04-03 12:43 ` Jan Beulich
2019-04-03 14:44 ` Andrew Cooper
2019-04-03 15:20 ` Jan Beulich
[not found] ` <5B61C2120200000000101EDC@prv1-mh.provo.novell.com>
[not found] ` <5B61C212020000780022FF0D@prv1-mh.provo.novell.com>
2019-05-17 10:10 ` [PATCH v2 0/3] " Jan Beulich
2019-05-17 10:10 ` [Xen-devel] " Jan Beulich
2019-05-17 10:11 ` [PATCH v2 1/3] x86/idle: re-arrange dead-idle handling Jan Beulich
2019-05-17 10:11 ` [Xen-devel] " Jan Beulich
2019-05-20 14:25 ` Andrew Cooper
2019-05-20 14:25 ` [Xen-devel] " Andrew Cooper
2019-05-17 10:12 ` [PATCH v2 2/3] x86/cpuidle: push parked CPUs into deeper sleep states when possible Jan Beulich
2019-05-17 10:12 ` [Xen-devel] " Jan Beulich
2019-05-17 10:12 ` [PATCH v2 3/3] x86/cpuidle: clean up Cx dumping Jan Beulich
2019-05-17 10:12 ` [Xen-devel] " Jan Beulich
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