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1 Commits (a8b4f887eaf52dc85bed1c5f3bdb150a7503e592)
| Author | SHA1 | Message | Date |
|---|---|---|---|
dianlujitao
|
1334e75013 |
lineage: Add support for BFQIO cgroups
* Introduce a standalone libbfqio to be picked by inputflinger,
surfaceflinger and display HAL, without extending the VNDK.
* This commit is based on the following patches:
From: Steve Kondik <steve@cyngn.com>
Date: Tue, 08 Sep 2015 02:23:41 -0700
cutils: Add support for BFQIO cgroups
* Add support for a custom hierarchy of cgroups on top of the BFQ
IO scheduler. This allows us to place every thread into the
right class (realtime/best-effort/idle) with a set up priority
buckets depending on use case.
* The benefit of doing this is pretty incredible from an
interactivity standpoint. Realtime users (display/audio) benefit
the most, resulting in glitch-free audio and jank-free video.
Dexopting in the background no longer causes active harm to
foreground tasks. Other tasks such as account syncing become
invisible from the user's perspective.
* Magic bullet? Perhaps.
Change-Id: I4eb911395364ce46d6dcbff43e94286ded03a97d
From: Steve Kondik <steve@cyngn.com>
Date: Sat, 19 Sep 2015 12:43:40 -0700
cutils: Fix copypasta in ioprio code
Change-Id: I976693be4a6913ed2090fa32d0f8e4c93657e7e7
From: Steve Kondik <steve@cyngn.com>
Date: Sun, 20 Sep 2015 01:08:07 -0700
cutils: Fix display ioprio
* A few unwanted items are sneaking into this class resulting in
system slowdowns. Fixit.
Change-Id: I29033a38adf2c65535f916135d395d5147afe323
From: Steve Kondik <steve@cyngn.com>
Date: Sun, 20 Sep 2015 03:00:54 -0700
cutils: Clean up ioprio grouping
* It's now better understood what's happening system-wide due to these
changes, so clean up the stuff which is not necessary and/or
potentially harmful.
Change-Id: I72178770844c1ac388a0b424b12cdc49042aec87
From: Steve Kondik <steve@cyngn.com>
Date: Sun, 20 Sep 2015 17:36:54 -0700
cutils: Remove ioprio magic
* ..and replace it with something we can call explictly where it is
required in order to achieve the same goodness without the badness.
Change-Id: I605b3acbc56ce82663dd6f1c9f3320d0ab75e178
From: Zhao Wei Liew <zhaoweiliew@gmail.com>
Date: Thu, 08 Sep 2016 20:01:29 +0800
cutils: iosched_policy: Access BFQIO cgroup in /dev/bfqio
AOSP doesn't mount cgroups in /sys/fs/cgroup, but in /dev/.
Follow what AOSP does.
Change-Id: I40d2241e3e5c41612d3a54d22981d3250f8b1ed6
Change-Id: I7d42bd6bb9176724c1e5687de14946923150ae89
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7 years ago |