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android_system_core/libprocessgroup/profiles/cgroups.json

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rootdir: Add cgroups and task profiles description files Add cgroups.json and task_profiles.json file to be places under /etc/ on the device to describe cgroups to be mounted and task profiles that processes can request. This adds additional layer of abstraction between what a process wants to achieve and how system implements that request. Bug: 111307099 test: builds, boots Change-Id: If92f011230ef5d24750e184bad776f30ba226f86 Merged-In: If92f011230ef5d24750e184bad776f30ba226f86 Signed-off-by: Suren Baghdasaryan <surenb@google.com>
2018-10-17 23:42:47 +00:00
{
"Cgroups": [
Add blkio cgroup to libprocessgroup To differentiate IO priority for different groups. Bug: 111422845 Bug: 117857342 Test: tasks are assigned to the group as expected Change-Id: Ibb108d1b8e0f720f7ac4cab248b3c33d35e5483d
2019-02-21 06:37:36 +00:00
{
"Controller": "blkio",
"Path": "/dev/blkio",
"Mode": "0755",
"UID": "system",
"GID": "system"
},
rootdir: Add cgroups and task profiles description files Add cgroups.json and task_profiles.json file to be places under /etc/ on the device to describe cgroups to be mounted and task profiles that processes can request. This adds additional layer of abstraction between what a process wants to achieve and how system implements that request. Bug: 111307099 test: builds, boots Change-Id: If92f011230ef5d24750e184bad776f30ba226f86 Merged-In: If92f011230ef5d24750e184bad776f30ba226f86 Signed-off-by: Suren Baghdasaryan <surenb@google.com>
2018-10-17 23:42:47 +00:00
{
"Controller": "cpu",
"Path": "/dev/cpuctl",
libprocessgroup: Fix file mode parsing that requires octal values JSON supports only decimal values and therefore file mode which should use octal values has to be represented as strings. Fix the implicit octal-to-decimal conversion and convert from string to octal in the code. Bug: 111307099 Test: confirmed by verifying correct file permissions Change-Id: I3ef9de0aea259f93bf74efeffca72d37d4740e15 Signed-off-by: Suren Baghdasaryan <surenb@google.com>
2019-02-03 00:09:17 +00:00
"Mode": "0755",
rootdir: Add cgroups and task profiles description files Add cgroups.json and task_profiles.json file to be places under /etc/ on the device to describe cgroups to be mounted and task profiles that processes can request. This adds additional layer of abstraction between what a process wants to achieve and how system implements that request. Bug: 111307099 test: builds, boots Change-Id: If92f011230ef5d24750e184bad776f30ba226f86 Merged-In: If92f011230ef5d24750e184bad776f30ba226f86 Signed-off-by: Suren Baghdasaryan <surenb@google.com>
2018-10-17 23:42:47 +00:00
"UID": "system",
"GID": "system"
},
{
"Controller": "cpuset",
"Path": "/dev/cpuset",
libprocessgroup: Fix file mode parsing that requires octal values JSON supports only decimal values and therefore file mode which should use octal values has to be represented as strings. Fix the implicit octal-to-decimal conversion and convert from string to octal in the code. Bug: 111307099 Test: confirmed by verifying correct file permissions Change-Id: I3ef9de0aea259f93bf74efeffca72d37d4740e15 Signed-off-by: Suren Baghdasaryan <surenb@google.com>
2019-02-03 00:09:17 +00:00
"Mode": "0755",
rootdir: Add cgroups and task profiles description files Add cgroups.json and task_profiles.json file to be places under /etc/ on the device to describe cgroups to be mounted and task profiles that processes can request. This adds additional layer of abstraction between what a process wants to achieve and how system implements that request. Bug: 111307099 test: builds, boots Change-Id: If92f011230ef5d24750e184bad776f30ba226f86 Merged-In: If92f011230ef5d24750e184bad776f30ba226f86 Signed-off-by: Suren Baghdasaryan <surenb@google.com>
2018-10-17 23:42:47 +00:00
"UID": "system",
"GID": "system"
},
{
"Controller": "memory",
"Path": "/dev/memcg",
libprocessgroup: Fix file mode parsing that requires octal values JSON supports only decimal values and therefore file mode which should use octal values has to be represented as strings. Fix the implicit octal-to-decimal conversion and convert from string to octal in the code. Bug: 111307099 Test: confirmed by verifying correct file permissions Change-Id: I3ef9de0aea259f93bf74efeffca72d37d4740e15 Signed-off-by: Suren Baghdasaryan <surenb@google.com>
2019-02-03 00:09:17 +00:00
"Mode": "0700",
rootdir: Add cgroups and task profiles description files Add cgroups.json and task_profiles.json file to be places under /etc/ on the device to describe cgroups to be mounted and task profiles that processes can request. This adds additional layer of abstraction between what a process wants to achieve and how system implements that request. Bug: 111307099 test: builds, boots Change-Id: If92f011230ef5d24750e184bad776f30ba226f86 Merged-In: If92f011230ef5d24750e184bad776f30ba226f86 Signed-off-by: Suren Baghdasaryan <surenb@google.com>
2018-10-17 23:42:47 +00:00
"UID": "root",
libprocessgroup: introduce optional attribute for cgroup controllers Memory cgroup controller is not used by high-end Android devices and is disabled in Android kernels 5.10+, however Android Go devices still require this controller. Similarly schedtune controller is being replaced with cpu controller's utilclamp feature, however some devices are using older kernels which only support schedtune. To prevent spamming logcat with errors we need a way to mark a controller optional in such cases without removing it from cgroups.json file. Introduce "Optional" attribute to cgroup controller's cgroups.json description to accomodate these cases. When an optional controller fails to mount due to lack of support in the kernel it will log an informational message without generating further errors. Bug: 181866655 Test: boot and observe libprocessgroup messages in logcat Signed-off-by: Suren Baghdasaryan <surenb@google.com> Change-Id: Ib5bcfdd8d338704f3f9d8b326d8ddd88b67915a1
2021-03-10 18:31:35 +00:00
"GID": "system",
"Optional": true
rootdir: Add cgroups and task profiles description files Add cgroups.json and task_profiles.json file to be places under /etc/ on the device to describe cgroups to be mounted and task profiles that processes can request. This adds additional layer of abstraction between what a process wants to achieve and how system implements that request. Bug: 111307099 test: builds, boots Change-Id: If92f011230ef5d24750e184bad776f30ba226f86 Merged-In: If92f011230ef5d24750e184bad776f30ba226f86 Signed-off-by: Suren Baghdasaryan <surenb@google.com>
2018-10-17 23:42:47 +00:00
}
],
"Cgroups2": {
libprocessgroup: switch freezer to cgroup v2 remove cgroup v1 freezer entries from init.rc, add a new cgroup v2 controller and modify plists to properly interact with it. Bug: 154548692 Test: manually verified the the cgroup v1 freezer controller isn't created and a new controller for cgroup v2 is created under the correct sysfs directory. Change-Id: I1b811300ade486f88fdbd157255a7f37750cc54d
2020-06-02 22:35:30 +00:00
"Path": "/sys/fs/cgroup",
"Mode": "0755",
"UID": "system",
"GID": "system",
"Controllers": [
{
"Controller": "freezer",
libprocessgroup: new method to get cgroup paths Bug: 180056337 Test: Verified the app freezer is correctly enabled via logs Change-Id: I3d954dd9bb0f1fa509a275d587e603f33a9d563f
2021-02-25 00:30:50 +00:00
"Path": ".",
libprocessgroup: switch freezer to cgroup v2 remove cgroup v1 freezer entries from init.rc, add a new cgroup v2 controller and modify plists to properly interact with it. Bug: 154548692 Test: manually verified the the cgroup v1 freezer controller isn't created and a new controller for cgroup v2 is created under the correct sysfs directory. Change-Id: I1b811300ade486f88fdbd157255a7f37750cc54d
2020-06-02 22:35:30 +00:00
"Mode": "0755",
"UID": "system",
"GID": "system"
}
]
rootdir: Add cgroups and task profiles description files Add cgroups.json and task_profiles.json file to be places under /etc/ on the device to describe cgroups to be mounted and task profiles that processes can request. This adds additional layer of abstraction between what a process wants to achieve and how system implements that request. Bug: 111307099 test: builds, boots Change-Id: If92f011230ef5d24750e184bad776f30ba226f86 Merged-In: If92f011230ef5d24750e184bad776f30ba226f86 Signed-off-by: Suren Baghdasaryan <surenb@google.com>
2018-10-17 23:42:47 +00:00
}
}