zipf.h File Reference

Zipf random number distribution. More...

Functions
struct spdk_zipf *	spdk_zipf_create (uint64_t range, double theta, uint32_t seed)
	Create a zipf random number generator.
void	spdk_zipf_free (struct spdk_zipf **zipfp)
	Free a zipf generator and set the pointer to NULL.
uint64_t	spdk_zipf_generate (struct spdk_zipf *zipf)
	Generate a value from the zipf generator.

Detailed Description

Zipf random number distribution.

Function Documentation

spdk_zipf_create()

struct spdk_zipf * spdk_zipf_create	(	uint64_t	range,
		double	theta,
		uint32_t	seed )

Create a zipf random number generator.

Numbers from [0, range) will be returned by the generator when calling spdk_zipf_generate.

Parameters

range	Range of values for the zipf distribution.
theta	Theta distribution parameter.
seed	Seed value for the random number generator.

Returns

a pointer to the new zipf generator.

spdk_zipf_free()

void spdk_zipf_free

(

struct spdk_zipf **

zipfp

)

Free a zipf generator and set the pointer to NULL.

Parameters

zipfp

Zipf generator to free.

spdk_zipf_generate()

uint64_t spdk_zipf_generate

(

struct spdk_zipf *

zipf

)

Generate a value from the zipf generator.

Parameters

zipf	Zipf generator to generate the value from.

Returns

value in the range [0, range)