Struct DiskConfig 

pub struct DiskConfig {
    pub io_threads: usize,
    pub cache_size: usize,
    pub write_cache_ratio: f32,
    pub channel_capacity: usize,
    pub buffer_pool_capacity: usize,
    pub enable_mlock: bool,
    pub lock_warn_threshold_ms: u64,
    pub filesystem_direct_io: bool,
}

Configuration for the disk I/O subsystem.

Fields

io_threads: usize

Number of concurrent I/O threads (semaphore permits). Default: 4.

cache_size: usize

Total cache size in bytes (read + write). Default: 16 MiB. Deprecated: use buffer_pool_capacity instead.

write_cache_ratio: f32

Fraction of cache_size reserved for write buffering. Default: 0.5. Deprecated: buffer pool handles write/read split implicitly.

channel_capacity: usize

Bounded channel capacity. Default: 512.

buffer_pool_capacity: usize

Unified buffer pool capacity in bytes. Default: 64 MiB.

enable_mlock: bool

Lock cached piece data in physical memory. Default: true on Unix.

lock_warn_threshold_ms: u64

M120: Lock timing warning threshold in milliseconds (0 = disabled).

filesystem_direct_io: bool

Enable direct I/O for filesystem storage (O_DIRECT / F_NOCACHE). Default: false.

Trait Implementations

impl Clone for DiskConfig

fn clone(&self) -> DiskConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DiskConfig

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

Formats the value using the given formatter.

impl Default for DiskConfig

fn default() -> DiskConfig

Returns the “default value” for a type.

impl From<&Settings> for DiskConfig

fn from(s: &Settings) -> DiskConfig

Converts to this type from the input type.