platform_system_core/libprocessgroup
Bart Van Assche 07f6c82a4c Migrate the blkio controller to the v2 cgroup hierarchy
This patch preserves the following parameter values:
* Foreground BFQ weight:      100
* Foreground CFQ group_idle:    0
* Foreground CFQ weight:     1000
* Background BFQ weight:       10
* Background CFQ group_idle:    0
* Background CFQ weight:      200

The foreground BFQ weight in task_profiles.json is the default BFQ
weight. From
https://www.kernel.org/doc/Documentation/block/bfq-iosched.txt:
"weight (namely blkio.bfq.weight or io.bfq-weight): the weight of the
group inside its parent. Available values: 1..10000 (default 100). The
linear mapping between ioprio and weights, described at the beginning
of the tunable section, is still valid, but all weights higher than
IOPRIO_BE_NR*10 are mapped to ioprio 0."

Bug: 213617178
Test: Booted Android in Cuttlefish and ran the following test:
Test: adb -e shell cat /sys/fs/cgroup/*/*/io.bfq.weight | sort | uniq -c
Test: 22 default 10
Test: 98 default 100
Change-Id: I7dfa521363a316592852fecce9192708c7a90514
Signed-off-by: Bart Van Assche <bvanassche@google.com>
2022-03-28 20:56:15 +00:00
..
cgrouprc Fix compiling libprocessgroup against musl 2021-09-14 12:35:01 -07:00
cgrouprc_format [LSC] Add LOCAL_LICENSE_KINDS to system/core 2021-02-19 12:59:05 -08:00
include/processgroup libprocessgroup: Add fd caching support for SetProcessProfiles 2022-01-25 00:05:34 +00:00
profiles Migrate the blkio controller to the v2 cgroup hierarchy 2022-03-28 20:56:15 +00:00
setup Canonicalize cgroup paths 2022-03-25 16:11:45 -07:00
tools libprocessgroup/tools: Add settaskprofile command-line tool 2021-11-09 22:35:51 +00:00
Android.bp Add support for optional cgroup attributes 2022-03-16 19:55:46 +00:00
cgroup_map.cpp Micro-optimize CgroupMap::ActivateControllers() 2022-02-15 00:09:34 +00:00
cgroup_map.h libprocessgroup: Add CgroupGetControllerFromPath API function 2021-11-08 21:24:33 +00:00
OWNERS Add new owners to various sub-projects. 2020-12-11 12:45:45 -08:00
processgroup.cpp Fix the cgroup directory owner in createProcessGroupInternal() 2022-03-25 07:32:56 -07:00
sched_policy.cpp libprocessgroup: fall back to cpuset in get_sched_policy 2021-12-14 10:56:34 -08:00
task_profiles.cpp Fix support for optional cgroup attributes 2022-03-25 14:37:16 -07:00
task_profiles.h Add support for memcg v2 attributes 2022-03-17 14:18:14 -07:00
task_profiles_test.cpp Add support for optional cgroup attributes 2022-03-16 19:55:46 +00:00