1334e75013
* 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
55 lines
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55 lines
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//
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// Copyright (C) 2017 The LineageOS Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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cc_library_headers {
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name: "libbfqio_headers",
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vendor_available: true,
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export_include_dirs: ["include"],
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}
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cc_defaults {
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name: "libbfqio_defaults",
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srcs: [
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"bfqio.c",
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],
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shared_libs: [
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"libcutils",
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"liblog",
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],
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header_libs: [
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"libbfqio_headers",
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],
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export_header_lib_headers: ["libbfqio_headers"],
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cflags: [
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"-Werror",
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"-Wall",
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"-Wextra",
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],
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}
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cc_library {
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name: "libbfqio",
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vendor_available: true,
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defaults: ["libbfqio_defaults"],
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}
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cc_library {
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name: "libbfqio_vendor",
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vendor: true,
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defaults: ["libbfqio_defaults"],
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}
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