From: Hans de Goede <email@example.com>
To: Tejun Heo <firstname.lastname@example.org>
Cc: Hans de Goede <email@example.com>,
Matthew Garrett <firstname.lastname@example.org>,
Subject: [PATCH 0/1] libata: Add new med_power_with_dipm link_power_management_policy setting
Date: Thu, 14 Sep 2017 12:35:35 +0200 [thread overview]
Message-ID: <email@example.com> (raw)
As described by Matthew Garret quite a while back:
On Intel CPUs starting with the Haswell generation SATA link power
management can save a significant amount of power.
Previous attempts to try and enable SATA LPM by default have gotten stuck
on ome reports of some disks / SSDs not liking min_power leading to system
crashes and in some cases even data corruption has been reported.
This patch is another attempt to make the default Windows IRST driver
settings Matthew found available under Linux, but instead of changing
medium_power and potentially introducing regressions, this commit adds
a new med_power_with_dipm setting.
I've done a blog post asking people to test this new settings on laptops:
As mentioned there my goal is to enable med_power_with_dipm as default
LPM setting for laptops for Fedora 28 (to be released aprox. May 2018).
How exactly this will be done is still up for debate, one option would
be a kernel patch which recognizes the mobile variant of Intel's chipset
and changes the default on those, another option is punting this to
next reply other threads:[~2017-09-14 10:36 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-14 10:35 Hans de Goede [this message]
2017-09-14 10:35 ` [PATCH] libata: Add new med_power_with_dipm link_power_management_policy setting Hans de Goede
2017-09-19 3:23 ` Tejun Heo
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).