Struct cgroups_rs::blkio::BlkIoController [−][src]
A controller that allows controlling the blkio
subsystem of a Cgroup.
In essence, using the blkio
controller one can limit and throttle the tasks’ usage of block
devices in the control group.
Implementations
impl BlkIoController
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pub fn new(root: PathBuf, v2: bool) -> Self
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Constructs a new BlkIoController
with root
serving as the root of the control group.
pub fn blkio(&self) -> BlkIo
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Gathers statistics about and reports the state of the block devices used by the control group’s tasks.
pub fn set_leaf_weight(&self, w: u64) -> Result<()>
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Set the leaf weight on the control group’s tasks, i.e., how are they weighted against the descendant control groups’ tasks.
pub fn set_leaf_weight_for_device(
&self,
major: u64,
minor: u64,
weight: u64
) -> Result<()>
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&self,
major: u64,
minor: u64,
weight: u64
) -> Result<()>
Same as set_leaf_weight()
, but settable per each block device.
pub fn reset_stats(&self) -> Result<()>
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Reset the statistics the kernel has gathered so far and start fresh.
pub fn throttle_read_bps_for_device(
&self,
major: u64,
minor: u64,
bps: u64
) -> Result<()>
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&self,
major: u64,
minor: u64,
bps: u64
) -> Result<()>
Throttle the bytes per second rate of read operation affecting the block device
major:minor
to bps
.
pub fn throttle_read_iops_for_device(
&self,
major: u64,
minor: u64,
iops: u64
) -> Result<()>
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&self,
major: u64,
minor: u64,
iops: u64
) -> Result<()>
Throttle the I/O operations per second rate of read operation affecting the block device
major:minor
to bps
.
pub fn throttle_write_bps_for_device(
&self,
major: u64,
minor: u64,
bps: u64
) -> Result<()>
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&self,
major: u64,
minor: u64,
bps: u64
) -> Result<()>
Throttle the bytes per second rate of write operation affecting the block device
major:minor
to bps
.
pub fn throttle_write_iops_for_device(
&self,
major: u64,
minor: u64,
iops: u64
) -> Result<()>
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&self,
major: u64,
minor: u64,
iops: u64
) -> Result<()>
Throttle the I/O operations per second rate of write operation affecting the block device
major:minor
to bps
.
pub fn set_weight(&self, w: u64) -> Result<()>
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Set the weight of the control group’s tasks.
pub fn set_weight_for_device(
&self,
major: u64,
minor: u64,
weight: u64
) -> Result<()>
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&self,
major: u64,
minor: u64,
weight: u64
) -> Result<()>
Same as set_weight()
, but settable per each block device.
Trait Implementations
impl Clone for BlkIoController
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fn clone(&self) -> BlkIoController
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pub fn clone_from(&mut self, source: &Self)
1.0.0[src]
impl Debug for BlkIoController
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impl<'a> From<&'a Subsystem> for &'a BlkIoController
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fn from(sub: &'a Subsystem) -> &'a BlkIoController
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Auto Trait Implementations
impl RefUnwindSafe for BlkIoController
impl Send for BlkIoController
impl Sync for BlkIoController
impl Unpin for BlkIoController
impl UnwindSafe for BlkIoController
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> Controller for T where
T: ControllerInternal,
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T: ControllerInternal,
pub fn control_type(&Self) -> Controllers
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pub fn path(&Self) -> &Path
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pub fn apply(&Self, &Resources) -> Result<(), Error>
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Apply a set of resources to the Controller, invoking its internal functions to pass the kernel the information.
pub fn create(&Self)
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Create this controller
pub fn set_notify_on_release(&Self, bool) -> Result<(), Error>
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Set notify_on_release
pub fn set_release_agent(&Self, &str) -> Result<(), Error>
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Set release_agent
pub fn exists(&Self) -> bool
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Does this controller already exist?
pub fn delete(&Self) -> Result<(), Error>
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Delete the controller.
pub fn add_task(&Self, &CgroupPid) -> Result<(), Error>
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Attach a task to this controller.
pub fn add_task_by_tgid(&Self, &CgroupPid) -> Result<(), Error>
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Attach a task to this controller by thread group id.
pub fn tasks(&Self) -> Vec<CgroupPid, Global>
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Get the list of tasks that this controller has.
pub fn v2(&Self) -> bool
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,