pub struct SystemDefaults;Expand description
System defaults for chunked file processing and configuration management
Implementations§
Source§impl SystemDefaults
impl SystemDefaults
Sourcepub const DEFAULT_MEMORY_PERCENTAGE: f64 = 10.0
pub const DEFAULT_MEMORY_PERCENTAGE: f64 = 10.0
Default memory budget as percentage of system memory
Benchmark results show 10% provides good balance:
- Sufficient for most workloads
- Leaves headroom for system operations
- Scales appropriately with system size
Sourcepub const MIN_MEMORY_BUDGET: usize
pub const MIN_MEMORY_BUDGET: usize
Minimum memory budget (absolute floor)
Below this, performance degrades significantly
Sourcepub const MAX_MEMORY_BUDGET: usize
pub const MAX_MEMORY_BUDGET: usize
Maximum memory budget (safety ceiling)
Even on large systems, cap at reasonable limit
Sourcepub const DEFAULT_CHUNK_SIZE: usize
pub const DEFAULT_CHUNK_SIZE: usize
Default chunk size for initial processing
Based on benchmarks:
- 32KB provides good initial performance
- Small enough for quick adaptation
- Large enough for efficient I/O
Sourcepub const MIN_CHUNK_SIZE: usize
pub const MIN_CHUNK_SIZE: usize
Minimum chunk size (emergency floor)
Below this, overhead dominates performance
Sourcepub const MAX_CHUNK_SIZE: usize
pub const MAX_CHUNK_SIZE: usize
Maximum chunk size (performance ceiling)
Larger chunks show diminishing returns
Sourcepub const DEFAULT_BATCH_WINDOW_MS: u64 = 250
pub const DEFAULT_BATCH_WINDOW_MS: u64 = 250
Default batch window for multi-file processing (ms)
Sourcepub const DEFAULT_LINE_CAPACITY: usize = 512
pub const DEFAULT_LINE_CAPACITY: usize = 512
Default line buffer capacity
Sourcepub const DEFAULT_OUTPUT_BUFFER_CAPACITY: usize = 4096
pub const DEFAULT_OUTPUT_BUFFER_CAPACITY: usize = 4096
Default output buffer capacity
Sourcepub const ADAPTATION_INTERVAL: usize = 20
pub const ADAPTATION_INTERVAL: usize = 20
Adaptation interval (chunks between adaptation checks)
Sourcepub const MEMORY_PRESSURE_LOW_THRESHOLD: f64 = 0.60
pub const MEMORY_PRESSURE_LOW_THRESHOLD: f64 = 0.60
Memory pressure thresholds (validated through benchmarking)
pub const MEMORY_PRESSURE_MODERATE_THRESHOLD: f64 = 0.85
pub const MEMORY_PRESSURE_HIGH_THRESHOLD: f64 = 0.95
Sourcepub const PRESSURE_FACTOR_LOW: f64 = 1.0
pub const PRESSURE_FACTOR_LOW: f64 = 1.0
Chunk size reduction factors per pressure level
pub const PRESSURE_FACTOR_MODERATE: f64 = 0.8
pub const PRESSURE_FACTOR_HIGH: f64 = 0.5
pub const PRESSURE_FACTOR_CRITICAL: f64 = 0.25
Sourcepub const EMERGENCY_ALLOCATION_FACTOR: f64 = 0.25
pub const EMERGENCY_ALLOCATION_FACTOR: f64 = 0.25
Emergency allocation factor
Sourcepub fn optimal_chunk_for_file(file_size: u64) -> usize
pub fn optimal_chunk_for_file(file_size: u64) -> usize
Optimal chunk size for different file sizes
Sourcepub fn default_strategy() -> &'static str
pub fn default_strategy() -> &'static str
Get default strategy based on context
Sourcepub fn should_chunk_by_default(file_size: u64) -> bool
pub fn should_chunk_by_default(file_size: u64) -> bool
Should use chunked processing by default?
Auto Trait Implementations§
impl Freeze for SystemDefaults
impl RefUnwindSafe for SystemDefaults
impl Send for SystemDefaults
impl Sync for SystemDefaults
impl Unpin for SystemDefaults
impl UnsafeUnpin for SystemDefaults
impl UnwindSafe for SystemDefaults
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