Enum PerformancePriority 

pub enum PerformancePriority {
    HighSpeed,
    Balanced,
    LowMemory,
}

This enum can be supplied to the FmIndexConfig to select different sub-algorithms during the construction of the FM-Index.

The default is HighSpeed.

Variants

HighSpeed

Balanced

For alphabets with 16 or less symbols in dense encoding, the temporary concatenated text and the BWT buffer can be compressed to use less memory while constructing the BWT. This reduces the peak memory usage of the construction by about 10-15% and only takes a small amount of additional running time.

LowMemory

In addition to the space improvements of the Balanced variant, a much slower, not parallel suffix array construction algorithm will be used for u32-based FM-Indices. This only happens if the u32-saca feature is activated (by default it is). This can save a lot of memory when the sum of text lengths fits into a u32, but not into a i32. The downside is that the construction is much slower (at least 5 times slower should be expected).

Trait Implementations

impl Clone for PerformancePriority

fn clone(&self) -> PerformancePriority

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PerformancePriority

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

Formats the value using the given formatter.

impl PartialEq for PerformancePriority

fn eq(&self, other: &PerformancePriority) -> 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 Copy for PerformancePriority

impl Eq for PerformancePriority

impl StructuralPartialEq for PerformancePriority