Struct CoreReservations

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pub struct CoreReservations {
    pub databases: f64,
    pub tokio_workers: f64,
    pub rayon: f64,
    pub irq: usize,
    pub reserved: usize,
}

Expand description

The desired distribution of available cores to purposes.

Note that, in addition to reserved, Cores reserves two additional cores for the operating system. That is, the denominator for fractions given below is num_cpus - reserved - 2.

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§databases: f64

Cores to run database instances on.

Default: 1/8

§tokio_workers: f64

Cores to run tokio worker threads on.

Default: 4/8

§rayon: f64

Cores to run rayon threads on.

Default: 1/8

§irq: usize

Cores to reserve for IRQ handling.

This will be the first n CoreIds in the list. Only make use of this if you’re configuring the machine for IRQ pinning!

Default: 2

§reserved: usize

Extra reserved cores.

If greater than zero, this many cores will be reserved before any of the other reservations are made (but after reserving the OS cores).

Default: 0

Implementations§

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impl CoreReservations

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pub fn apply(&self, cores: &mut Vec<CoreId>) -> [Vec<CoreId>; 5]

Apply this reservation to an arbitrary list of core ids.

Returns the allocated cores in the order:

irq
reserved
databases
tokio_workers
rayon

Left public for testing and debugging purposes.

Trait Implementations§

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impl Default for CoreReservations

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fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl UnwindSafe for CoreReservations

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