Struct PerformanceConfig 

pub struct PerformanceConfig {
    pub worker_threads: Option<usize>,
    pub imap_pool_size: usize,
    pub smtp_pool_size: usize,
    pub read_buffer_kb: usize,
    pub write_buffer_kb: usize,
}

Runtime performance tuning parameters.

Exposed via the [performance] TOML section. Defaults are conservative values that work well on typical single-node deployments. Increase pool sizes and buffer sizes on high-traffic installations with ample RAM.

Fields

worker_threads: Option<usize>

Default: None (use Tokio’s default, typically the number of logical CPUs). Set to override the number of Tokio worker threads at runtime startup. Values of 0 are rejected by validation.

imap_pool_size: usize

Default: 64. Maximum number of concurrent IMAP connections the server will accept per listener socket before new connections are queued.

smtp_pool_size: usize

Default: 64. Maximum number of concurrent SMTP connections the server will accept per listener socket before new connections are queued.

read_buffer_kb: usize

Default: 64. Read buffer size in kibibytes allocated per connection. Larger values reduce system-call overhead on bulk transfers at the cost of memory.

write_buffer_kb: usize

Default: 64. Write buffer size in kibibytes allocated per connection. Larger values reduce system-call overhead on bulk transfers at the cost of memory.

Implementations

impl PerformanceConfig

pub fn validate(&self) -> Result<()>

Validate performance configuration values.

Returns an error if any pool size or buffer size is zero, or if worker_threads is explicitly set to zero.

pub fn effective_worker_threads(&self) -> usize

Return worker_threads or a sensible fallback based on the number of logical CPUs (minimum 1).

Trait Implementations

impl Clone for PerformanceConfig

fn clone(&self) -> PerformanceConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PerformanceConfig

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

Formats the value using the given formatter.

impl Default for PerformanceConfig

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for PerformanceConfig

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for PerformanceConfig

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

where __S: Serializer,

Serialize this value into the given Serde serializer.