vsmc::CStringNonTemporalThreshold Class Reference

The threshold of buffer size above which memcpy use non-temporal instructions. More...

#include <vsmc/utility/cstring.hpp>

Public Member Functions
std::size_t	get () const
	Get the threshold. More...
std::size_t	max_level () const
	The maximum level of cache considered in set(). More...
void	max_level (std::size_t level)
	Set new maximum level of cache considered in set(). More...
unsigned	over (std::size_t n) const
	Give number of bytes, return flag indicate if it is over the threshold. More...
void	set ()
	Set the threshold to default. More...
void	set (std::size_t threshold)
	Set the threshold to a specific size. More...

Static Public Member Functions
static CStringNonTemporalThreshold &	instance ()
	Singleton instance. More...

Detailed Description

The threshold of buffer size above which memcpy use non-temporal instructions.

Definition at line 578 of file cstring.hpp.

Member Function Documentation

std::size_t vsmc::CStringNonTemporalThreshold::get ( ) const

inline

Get the threshold.

Definition at line 628 of file cstring.hpp.

static CStringNonTemporalThreshold& vsmc::CStringNonTemporalThreshold::instance ( )

inlinestatic

Singleton instance.

Note

If any memcpy functions in this module is to be called from multiple thread, then this member function need to be called at least once before entering threads.

Definition at line 587 of file cstring.hpp.

std::size_t vsmc::CStringNonTemporalThreshold::max_level ( ) const

inline

The maximum level of cache considered in set().

Definition at line 595 of file cstring.hpp.

void vsmc::CStringNonTemporalThreshold::max_level ( std::size_t  level )

inline

Set new maximum level of cache considered in set().

Note

This will automatically call set() to set the new threshold.

Definition at line 601 of file cstring.hpp.

unsigned vsmc::CStringNonTemporalThreshold::over ( std::size_t  n ) const

inline

Give number of bytes, return flag indicate if it is over the threshold.

Definition at line 632 of file cstring.hpp.

void vsmc::CStringNonTemporalThreshold::set ( )

inline

Set the threshold to default.

By default, we set a pretty high threshold (the LLC size).

Definition at line 607 of file cstring.hpp.

void vsmc::CStringNonTemporalThreshold::set ( std::size_t  threshold )

inline

Set the threshold to a specific size.

Definition at line 625 of file cstring.hpp.