Struct KernelVersion 

pub struct KernelVersion {
    pub major: u32,
    pub minor: u32,
    pub patch: u32,
}

Linux kernel version.

Parsed from /proc/version or uname -r.

Fields

major: u32

Major version (e.g., 5 in 5.15.0)

minor: u32

Minor version (e.g., 15 in 5.15.0)

patch: u32

Patch version (e.g., 0 in 5.15.0)

Implementations

impl KernelVersion

pub const fn new(major: u32, minor: u32, patch: u32) -> Self

Creates a new kernel version.

pub fn detect() -> Option<Self>

Detects the current kernel version.

Returns None on non-Linux platforms or if detection fails.

pub fn supports_io_uring(&self) -> bool

Check if basic io_uring is supported (Linux 5.1+).

pub fn supports_io_uring_fixed_files(&self) -> bool

Check if io_uring with fixed files is supported (Linux 5.1+).

pub fn supports_io_uring_registered_buffers(&self) -> bool

Check if io_uring with registered buffers is supported (Linux 5.1+).

pub fn supports_io_uring_sqpoll(&self) -> bool

Check if io_uring SQPOLL mode is supported (Linux 5.11+).

SQPOLL uses a dedicated kernel thread to poll the submission queue, eliminating syscalls under load.

pub fn supports_io_uring_iopoll(&self) -> bool

Check if io_uring IOPOLL mode is supported for NVMe (Linux 5.19+).

IOPOLL polls completions directly from the NVMe queue without interrupts.

pub fn supports_io_uring_multishot(&self) -> bool

Check if io_uring multishot operations are supported (Linux 5.19+).

pub fn supports_io_uring_coop_taskrun(&self) -> bool

Check if io_uring COOP_TASKRUN is supported (Linux 5.19+).

pub fn supports_io_uring_single_issuer(&self) -> bool

Check if io_uring SINGLE_ISSUER is supported (Linux 6.0+).

pub fn supports_xdp(&self) -> bool

Check if XDP is supported (Linux 4.8+).

pub fn supports_xdp_generic(&self) -> bool

Check if XDP generic mode (SKB) is supported (Linux 4.12+).

pub fn supports_xdp_native(&self) -> bool

Check if XDP native mode is widely supported (Linux 5.3+).

pub fn supports_xdp_cpumap(&self) -> bool

Check if XDP redirect to CPU map is supported (Linux 4.15+).

pub fn supports_thp(&self) -> bool

Check if transparent huge pages are available (Linux 2.6.38+).

pub fn supports_madv_hugepage(&self) -> bool

Check if madvise MADV_HUGEPAGE is supported (Linux 2.6.38+).

pub fn supports_cpu_affinity(&self) -> bool

Check if CPU affinity syscalls are supported (Linux 2.5.8+).

pub fn supports_numa_policy(&self) -> bool

Check if NUMA memory policy is supported (Linux 2.6.7+).

pub const fn minimum_recommended() -> Self

Returns the minimum kernel version for basic LaminarDB operation.

pub const fn optimal_recommended() -> Self

Returns the recommended kernel version for optimal performance.

pub fn meets_minimum(&self) -> bool

Check if this version meets the minimum requirements for LaminarDB.

pub fn is_optimal(&self) -> bool

Check if this version is optimal for LaminarDB performance.

Trait Implementations

impl Clone for KernelVersion

fn clone(&self) -> KernelVersion

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for KernelVersion

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

Formats the value using the given formatter.

impl Display for KernelVersion

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

Formats the value using the given formatter.

impl From<(u32, u32, u32)> for KernelVersion

fn from((major, minor, patch): (u32, u32, u32)) -> Self

Converts to this type from the input type.

impl Hash for KernelVersion

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for KernelVersion

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for KernelVersion

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for KernelVersion

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for KernelVersion

impl Eq for KernelVersion

impl StructuralPartialEq for KernelVersion