Struct ResourceLimits 

pub struct ResourceLimits {
    pub memory_mb: u32,
    pub cpu_millis: u32,
    pub memory_request_mb: Option<u32>,
    pub cpu_limit_millis: Option<u32>,
    pub pids_max: Option<u32>,
    pub scratch_floor_mb: Option<u32>,
}

Hard resource caps enforced by containerd/cgroups at runtime.

Fields

memory_mb: u32

Maximum RAM the container may allocate, in MiB. The container is OOM- killed if it exceeds this.

A ceiling, not a request: setting it generously is the safe direction here and the unschedulable direction for placement, so schedulers must read WorkloadSpec::memory_request_mb instead of this field. (cpu_millis below is the opposite — a request by definition — which is why the two are not symmetric.)

cpu_millis: u32

CPU request in millicores (k8s convention): 1000 = one full core, 250 = .25 CPU. Unlike a Docker relative weight this is an allocatable quantity a bin-packer can subtract from a node’s budget. 0 means “no declared request” — the workload gets the node’s default share. Backends that speak a relative weight derive it via ResourceLimits::cpu_shares.

It is not a ceiling. A request answers “what share of a contended node is mine”; nothing here says “stop at this much”. A workload declaring 250m must still be able to burst to the whole box when the box is idle. The hard ceiling is optional and rides Self::cpu_limit_millis — R885-B5 / W344 Finding 5, filed after this field was rendered into a cgroup cpu.max and throttled four live workloads to a quarter core apiece.

memory_request_mb: Option<u32>

Memory request in MiB — what a scheduler must find free on a node, separate from the Self::memory_mb ceiling. Read via WorkloadSpec::memory_request_mb, which falls back to the ceiling.

cpu_limit_millis: Option<u32>

Optional hard CPU ceiling in millicores — the mirror image of memory_request_mb: Self::cpu_millis is the request, this is the limit. Read via WorkloadSpec::cpu_limit_millis; 0 means none.

pids_max: Option<u32>

Hard process-count ceiling — cgroup v2 pids.max. Read via WorkloadSpec::pids_limit, which falls back to DEFAULT_PIDS_MAX rather than to “unbounded”.

scratch_floor_mb: Option<u32>

A floor on the microVM scratch disk in MiB — the smallest workspace this workload is willing to be given. Note the direction: the other limits here are ceilings a backend enforces downward, this is a floor a backend raises up to, and floor is in the name for exactly that reason (R885-T6 deleted ephemeral_storage_mb because it was documented as a cap and read as a floor). Read via WorkloadSpec::scratch_floor_mb.

Implementations

impl ResourceLimits

pub fn cpu_shares(&self) -> u64

The Docker/OCI relative CPU weight (cpu.shares, where 1024 ≈ one core) equivalent to this millicore request. The containerd and docker backends express CPU as a weight rather than a millicore request, so they derive it here instead of storing shares: 1000m ⇒ 1024.

Trait Implementations

impl Clone for ResourceLimits

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ResourceLimits

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ResourceLimits

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for ResourceLimits

impl PartialEq for ResourceLimits

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for ResourceLimits

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ResourceLimits

impl TS for ResourceLimits

type WithoutGenerics = ResourceLimits

If this type does not have generic parameters, then WithoutGenerics should just be Self. If the type does have generic parameters, then all generic parameters must be replaced with a dummy type, e.g ts_rs::Dummy or ().
The only requirement for these dummy types is that EXPORT_TO must be None.

type OptionInnerType = ResourceLimits

If the implementing type is std::option::Option<T>, then this associated type is set to T. All other implementations of TS should set this type to Self instead.

fn ident(cfg: &Config) -> String

Identifier of this type, excluding generic parameters.

fn docs() -> Option<String>

JSDoc comment to describe this type in TypeScript - when TS is derived, docs are automatically read from your doc comments or #[doc = ".."] attributes

fn name(cfg: &Config) -> String

Name of this type in TypeScript, including generic parameters

fn decl_concrete(cfg: &Config) -> String

Declaration of this type using the supplied generic arguments. The resulting TypeScript definition will not be generic. For that, see TS::decl(). If this type is not generic, then this function is equivalent to TS::decl().

fn decl(cfg: &Config) -> String

Declaration of this type, e.g. type User = { user_id: number, ... }. This function will panic if the type has no declaration.

fn inline(cfg: &Config) -> String

Formats this types definition in TypeScript, e.g { user_id: number }. This function will panic if the type cannot be inlined.

fn inline_flattened(cfg: &Config) -> String

Flatten a type declaration. This function will panic if the type cannot be flattened.

fn visit_generics(v: &mut impl TypeVisitor)

where Self: 'static,

Iterates over all type parameters of this type.

fn output_path() -> Option<PathBuf>

Returns the output path to where T should be exported, relative to the output directory. The returned path does not include any base directory.

fn visit_dependencies(v: &mut impl TypeVisitor)

where Self: 'static,

Iterates over all dependency of this type.

fn dependencies(cfg: &Config) -> Vec<Dependency>

where Self: 'static,

Resolves all dependencies of this type recursively.

fn export(cfg: &Config) -> Result<(), ExportError>

where Self: 'static,

Manually export this type to the filesystem. To export this type together with all of its dependencies, use TS::export_all.

fn export_all(cfg: &Config) -> Result<(), ExportError>

where Self: 'static,

Manually export this type to the filesystem, together with all of its dependencies. To export only this type, without its dependencies, use TS::export.

fn export_to_string(cfg: &Config) -> Result<String, ExportError>

where Self: 'static,

Manually generate bindings for this type, returning a String. This function does not format the output, even if the format feature is enabled.